You are definitely one of the best astrophotography channels on yt. way underrated, and not all about the images/hardware themselves. continue to teach and inspire Dylan :)
Excellent vid, Dylan. You are certainly the scholar among us. I've heard new theories on the Pleiades that the blue dust around them was not related to their formation and the stars are just passing through an unrelated nebula.
According to the Wikipedia article on the Pleiades, the age of the cluster is such that all the original residual dust would already have been dispersed by radiation pressure. Hence the conclusion that the stars just happen to be currently in the neighbourhood of another dust cloud, which is giving rise to the reflection nebula.
Yes I think that you are correct Chuck the seven sisters are only passing through an unassociated dust cloud. Thinking about it what gives it away is that if you look at wide and deep images of M45 then you will see that the cloud is much more extensive than the seven sisters themselves which doesnt make sense if they are linked. The stars being relatively young though makes me wonder how far they have drifed away form their point of origin over their relitively short lives.
This is just incredible Dylan. I wish more would explain what they are sharing when they image. You have reminded me of the wonder that science/space creates. Understanding how this forms just changes everything when looking at the final image. It heightens that experience of we are truly gazing at the perfection of the Universe. It's mind=blowing as it is we are looking at the past and future in these images. It's exciting that those who can view this could get to see changes in the stars light over time. From this point you have inspired me to learn what it is truly I am imaging and understand as much as I can about it. This really does bring back the wonder. Grateful for the inspiration and seeing this beautiful image!
Thank you Reine! It’s easy for me to get lost in the gear and process sometimes so it’s nice to remind myself of what the hell i’m looking at and why :) thanks for your support !
Rather than being emotional at the end, this video is emotional all the way. Good work on the image and much better work on commentary..it sounded like an artist talking about the painting he just completed!
My QSI 683 was running the whole last night making a dark frame library (actually it's still going on.. 50 images each at 120s, 180s, 300s and 600s.. the 900s and 1200s I will finish another time).. once done, I will open a beer, sit back and enjoy the unstretched beauty of what I have captured.. thank you
be happy we have dylan & co ! we can still see some star stuff!from 24 april till now i use my setup one time and the forecast its not so great for next month!greetengs from holland
Adrian J. Hennessy Photography dylan got a month ago pilars creation from 7 nights data!!!again...from 7 FOKING NIGHTS of data and he use 30% i think he say:)))))hollyyyy fak! my last sesion i was 4 months ago about 3-4 hours and get 2 targets and i try to use the photos with the satelites in it:)))
Love the idea of taking your picture and sharing it with us as well as how you captured it, but also spilling some knowledge on what it is we are seeing and what is going on there.
I love this video. It's so different than anything else you usually see from astro UA-camrs. Thank you for that, it's an amazing insight and video. Truly a fascinating part of space
frigireders on the back was funniest!:)))) i have a canon 600d! he does not have a frigireder...still before every seaion i keep my 600d in the frizer buy i dont think is the same
Super cool to see this form of content from you! I think it really helps give context to the photos. It’s something that I think is typically left out and, to me, that’s where most of the beauty is!
Dude Dylan please do more stuff like this! I agree with you, we focus so much on the process and how to take these images and collect the data and completely forget why we spend our time and energy on this stuff!
I worked in the printing industry like your dad before digital for a lot of years too. You learn that a million factors can effect color you see including the actual placement of each color film when making chromalins (lining all the dots up with separate color films and burning them in proof plastics with different color inks) You learn that the "Theory" of the colors you see in space related to what you THINK those compounds are made of is nothing but BULLSHIT. Your intelligent and have an awesome channel. I think eventually over time you'll learn most of what you've been taught about space is BULLSHIT. Keep going. Your imagery is top notch. Hopefully one day you will be granted to see what's right in front of you.
Excellent video. You should do more like this. The how to and equipment videos are great but hearing more info on the objects and your impressions is both informative and entertaining. Love you work and sense of humor. Keep on keeping on.
What a cool image. Superb presentation Dylan. The office space references are a big plus. On another note, seeing regions of space like you're showcasing here, it really boggles the mind to consider that our universe could ever experience heat death with what might one day be a small galaxy careening around space borrowing material from other galaxies so long after our universes inception.
I like how you make it fun and funny. Helps people who don’t care for space want to watch very entertaining and learned a lot! Good job! Keep them coming.
I had no idea this nebula existed mainly because I live in the US, but also because it looks like a smeared poop stain! Nebulae are never this dark with giant regions devoid of stars. But still, great video and very informative! Also 4:02 cracked me up! 😂
What a wonderful video... This is exactly why I push my self to explorer as much as I can in space. This video is truly inspirational. I love looking up and take a beautiful picture with my Celestron 8" for hours just to appreciate the beauty... Thanks for the video mate.
That is a really cool nebula. Also, thanks for the dramatic music with some drums. I think the weirdest thing I have seen/imaged is the Bubble Nebula, not because it is mind boggling or confusing, but just because it has that bubble look to it. Like someone attempted to blow a bubble with their gum and spit it out halfway through.
I just recently did my first shot at the Trifid Nebula and it amazes me at the star count in the pic alone...... love studying my pics as I always find something new in them.
Hi mate, perhaps your best video to date!!! Well done, the way that you took us on a journey... fantastic work... and also a fantastic image as always...you have made me curious so will have to point my telescope at this target, only a wide field refractor so don’t expect as much detail... thanks for sharing, truly brilliant. Have a good one
Great shot. It does the blue nebulosity does reminds of the pleiades. But personally, It also reminds me of the Iris nebula, especially for the dark dust around it
Thanks, Dylan, for sharing your insight into an interesting structure. Agree wholeheartedly about taking the time to soak in and enjoy what's up there. Awesome image, as always.
Beautiful picture, but also amazing how much you found out about it! And the bearly hearable „like you“ in the middle ... just total Dylan 😂. Enjoyed it!
Considering how far away some of these objects are (420+ light years for this one), deep sky astronomy is a bit like looking back in time. That cluster may no longer even be where it looks to be, or it may have changed significantly, or not at all, but we won't know unless we keep looking to find out how things unfolded some 420+ years ago. It would be interesting to shoot this particular cluster say every 3 to 6 months or so for the next 20 to 30 years, and then do a time lapse of all of the photos to actually "see" the changes taking place, if any, over that time.
Yes, and many objects are soooo much farther away. I went through that thought process when I captured M51. 26 million light years away. Civilizations could have formed prospered and crashed and burned while the photons that created my image, traveled to my camera sensor. For all we know, it is not even there anymore. A lot can happen in 26million years..... - Cheers
Hey D! Big Fan! Great Shot! I live in Nashville Tn, but I just purchased a 20" Planewave setup at Siding Springs in your neck of the woods. I'll be running it remotely from here once the testing is complete. Given the size of the Corona Australis I was wondering what the coordinates of your shot were. I'd like to shoot it myself. By the way, I am a musician (Hawk Wolinski) and spent a lot of time in Australia. I was Glenn Frey's keyboard player and played with him and LRB at your bi-centennial in Brisbane years back. I also spent 2 months in Melbourne producing a band called Big Pig. I know your are a musician. Keep up the good work.
Hey Hawk! Good to hear from a celebrity musician :) We have a grand piano at home which is my wife’s big toy. Search for Caldwell 68 and you’ll find the coordinates. Your siding springs installation sounds amazing!
@@DylanODonnell Thanks for the info! When I get Siding Springs up and running you're welcome to take the rig for a test drive. BTW, tell your wife I just bought a Fazioli 6'!! So how do I get you a personal message so we stay in touch?
What books, videos or other material would you recommend for a 57 year old that wants to get into Astrophotography? I have been on and off been into astronomy for 45 years, but never did photography of stars before.
Great video. I find that I am much more interested in figuring out what I am seeing when I've spent a lot of time creating an astro image. That's science! Nice job. More please.
I love the Office Space reference! And I really enjoyed watching you discuss what was captured in one of your own images. I'd love to see more of these in the future, if possible.
Hi Chuck. I’ve been designing optical systems for over 40 years. Spitzer Space Telescope, camera aboard CASSINI craft and LORRI telescope on New Horizons mission to Pluto. Proper sampling is determined by the Nyquist theorem. You want at least 2 pixels across the Airy disk. This means 4 pixels (2 x 2) is the minimum you want. Over sampling is fine but you don’t want to under sample. The Airy diameter d is calculated by d = 2.44 x wavelength x F/# . So the maximum pixel size p would be d/2. d/2 = p = 1.22 x wavelength x F/# For a Celestron 8”, the F/# = 10 and assume the wavelength is 0.5 microns. This gives a maximum pixel size of p = 1.22 x 0.5 x 10 = 6.1 microns. This is the proper way to determine pixel size. Angular resolution alpha is given by alpha = 2.44 x wavelength/D Where D is the diameter of your aperture. This is the full, not half angle of your diffraction limit in radians. For a C8, we have alpha = 2.44 x 0.0005/(8 x 25.4) = 6.6 x 10^-6 radians (1.36 arc sec). Paul
Try applying the Electric Universes theories of star formation to see if it makes any sense. The large Birkeland currents that power everything under this theory will be the key to anythng you find or figure out. I find it is always fun to use and apply a different theory to see if something fits. You have way to much fun, and I am glad you share it with us! Much thanks!!
Amazing Video Dylan, most of the time we care about the acquisition and tecnical stuff but we really forget what we are capturing with our equipment, simple Amazing. This is one of your best videos, Saludos!
@@DylanODonnell bloody hell..did not want to encourage you that much...love Byron, wasted way too much time diving there...now live in the south west UK and miss those wonderful southern skies ..enjoy it whenever you can you lucky bugger. Ross
You have blown my mind with this video. Opened up a lot to investigate and learn about. You made me laugh again to! Great images, clears skies! Going to grab a beer and watch again!
One of your best videos to date. Dylan, you gotttaaa point that big PP boi EdgeHD 11 into that little nebula which you've deemed a possible protostar formation. It really looks cool even at this focal length I wonder what it looks like at a focal length of 2000+
@@DylanODonnell I like watching your channel because you're just down the road from me, i live on the goldie so our Astrophotography conditions are probably very similar, so if it's raining here it's probably raining down there so at least I've got someone to share my frustrations with 😂
Great video!! Corona australis has always been one of my favourite things to point out to friends in the night sky, super interesting to see and hear about all of this!! My dad loves your videos and sent this one to me because its one of the few things ive found and pointed out before him 😂
Kanipe and Webb's books are amazing manuals of star stuff. I compare their written word to the videos that David Butler does. No way I can read and absorb it all, but it's fun trying.
nice one Dylan, enjoyed the deep dive - makes for good content; although too bad you couldn't squeeze ngc 6743 into the frame - makes for a good deep sky combo
Funny. I attempted to grab a few subs of that region last night while waiting for the Helix Nebula to show up from behind a tree. But I failed miserably since I didn't realize it was a reflection nebula with very little H-alpha signal (I was already setup for narrowband imaging)
Awesome video, Dylan. Could it be that some of these structures are residue of an ancient prehistoric galaxy (or multiple galaxies?) that have already (for the most part) combined with the milky way? Perhaps 400-ish light years isn't 'where?' we'd expect to find this kind of residue of ancient galaxy colliding efforts if there was residue still orbiting around the milky way?
Hi Would really appreciate your advice!! I've bought Celestron 800 EDGE HD with Celestron 0,7 focal reducer. I shoot from very light polluted skies and rely on Optolong L-Pro 2'' filter. I use EOS Canon 60D. But how on earth do I connect the 2'' filter? Any ideas? Which adapters should I use. I'm totally lost, sorry
Dylan, love your stuff, just awesome! I just bought a Celestron SLT 127 and I just wanted to ask if you have any recommendations on enhancing the 127 experience? Bought a new 18mm optic from Celestron, great for Jupiter and our moon, the mars races by like crazy, no chance at all getting it even close to focused! Need a few tips? Thanks, Scott
Wonderful video and imaging Dylan! Really awesome “Star Stuff”! Your videos inspire all of us to look deeper, but observe everything. Still the best intro ever! 🇨🇦
The way u bring the info and do the edits and the little Jokes, it is just a masterpiece, love ur video's and ur random ideas like this one, keep em coming 🥰🚀🔭✨
What a cool target! Thanks for this one, Dylan. I don't think I've seen an an astrophotographer on UA-cam go into a real analysis of the target itself like this. P.S. Loved the war drums.
I actually thought this video would tank because I wasn’t talking about Astrophotography! Now I realise it’s not just me who want to know more about the what than the how.
@@DylanODonnell i like a good physics lecture i watch cfa and other uni lectures (when they are on dam beer bug ) at the uni of youtube (not smart enough for a real uni ) most of it i feel the breeze as it goes over my head but i still enjoy all this star stuff .... sorry shameless plug of your channel lol ..you might enjoy this ..... did you know beetlegeist is dimming again ua-cam.com/video/qjAWW6OtNkk/v-deo.html .... not a lecture just another channel i like cheers james D
You are definitely one of the best astrophotography channels on yt. way underrated, and not all about the images/hardware themselves. continue to teach and inspire Dylan :)
Thanks Drew! That’s high praise, I appreciate your support !
Weirdest thing for me was doing star alignment and had the settings wrong, slewed into a street lamp.... thought there was a new sun at night 🤣👍
Bahaha
:))))))), still you have light ,do you guid it?!:))))
@@AstroB.R. i got lucky
that's hilarious
@@Fuar11 it wasnt my proudest moment
Nobody:
Absolutely no one:
Dylan: I am a space simp
Getting in front of it
Excellent vid, Dylan. You are certainly the scholar among us. I've heard new theories on the Pleiades that the blue dust around them was not related to their formation and the stars are just passing through an unrelated nebula.
Ahh thx Chuck! Interesting theory I hadn’t heard that one!
That would make for a good Alanis Morissette remix
According to the Wikipedia article on the Pleiades, the age of the cluster is such that all the original residual dust would already have been dispersed by radiation pressure. Hence the conclusion that the stars just happen to be currently in the neighbourhood of another dust cloud, which is giving rise to the reflection nebula.
Yes I think that you are correct Chuck the seven sisters are only passing through an unassociated dust cloud. Thinking about it what gives it away is that if you look at wide and deep images of M45 then you will see that the cloud is much more extensive than the seven sisters themselves which doesnt make sense if they are linked. The stars being relatively young though makes me wonder how far they have drifed away form their point of origin over their relitively short lives.
This is just incredible Dylan. I wish more would explain what they are sharing when they image. You have reminded me of the wonder that science/space creates. Understanding how this forms just changes everything when looking at the final image. It heightens that experience of we are truly gazing at the perfection of the Universe. It's mind=blowing as it is we are looking at the past and future in these images. It's exciting that those who can view this could get to see changes in the stars light over time. From this point you have inspired me to learn what it is truly I am imaging and understand as much as I can about it. This really does bring back the wonder. Grateful for the inspiration and seeing this beautiful image!
Thank you Reine! It’s easy for me to get lost in the gear and process sometimes so it’s nice to remind myself of what the hell i’m looking at and why :) thanks for your support !
Rather than being emotional at the end, this video is emotional all the way. Good work on the image and much better work on commentary..it sounded like an artist talking about the painting he just completed!
Hah hey thanks Ray! Wasn’t sure this format would work so glad it came across ok.
@@DylanODonnell It is an amazing format. Very professionally done - definitely will appeal to a larger audience than astrophotographers.
Ray's Astrophotography , absolutely agree Ray, it made me think more about what I take. Plus it was really interesting and I wanted more.
@@RaysAstrophotography I totally agree! Do this stuff more often Dylan!! Greetings -Chris
My QSI 683 was running the whole last night making a dark frame library (actually it's still going on.. 50 images each at 120s, 180s, 300s and 600s.. the 900s and 1200s I will finish another time).. once done, I will open a beer, sit back and enjoy the unstretched beauty of what I have captured.. thank you
Australia, land of the lizard...and Dylan. Wish we had the same sky in Ireland
be happy we have dylan & co ! we can still see some star stuff!from 24 april till now i use my
setup one time and the forecast its not so great for next month!greetengs
from holland
Adrian J. Hennessy Photography dylan got a month ago pilars creation from 7 nights data!!!again...from 7 FOKING NIGHTS of data and he use 30% i think he say:)))))hollyyyy fak! my last sesion i was 4 months ago about 3-4 hours and get 2 targets and i try to use the photos with the satelites in it:)))
@@AstroB.R. Yes it would be nice to be able to get 7 nights of data!
The only thing that'll kill you in Ireland is the free flow af alcohol. Australia on the other hand has death under every bush.
I wish I saw any clear sky here in Ireland
Love the idea of taking your picture and sharing it with us as well as how you captured it, but also spilling some knowledge on what it is we are seeing and what is going on there.
I love this video. It's so different than anything else you usually see from astro UA-camrs. Thank you for that, it's an amazing insight and video. Truly a fascinating part of space
Thanks Luna! I was actually hesitant to post as it’s less about the process this time but seems well received !
@@DylanODonnell I'd love to see more like this!
"Semen from the dusty pillow of creation" that made me laugh.
Gosh i'm so immune to those things now it just wooosh thru my eardrum like nothing.
Thanks, I try :)
frigireders on the back was funniest!:)))) i have a canon 600d! he does not have a frigireder...still before every seaion i keep my 600d in the frizer buy i dont think is the same
That was 'pillar' . . . pill - arrr . . . of Creation.
sure he said pillar as well.
when i was camping in NSW, a young fellow snuck into my tent and wanked on my pillow.
jabonet?
Super cool to see this form of content from you! I think it really helps give context to the photos. It’s something that I think is typically left out and, to me, that’s where most of the beauty is!
Dude Dylan please do more stuff like this! I agree with you, we focus so much on the process and how to take these images and collect the data and completely forget why we spend our time and energy on this stuff!
While I love your sense of humor, I also enjoy your thoughtfulness on the subject. Great Job as always!
Thanks mate :)
I worked in the printing industry like your dad before digital for a lot of years too. You learn that a million factors can effect color you see including the actual placement of each color film when making chromalins (lining all the dots up with separate color films and burning them in proof plastics with different color inks)
You learn that the "Theory" of the colors you see in space related to what you THINK those compounds are made of is nothing but BULLSHIT.
Your intelligent and have an awesome channel. I think eventually over time you'll learn most of what you've been taught about space is BULLSHIT. Keep going. Your imagery is top notch. Hopefully one day you will be granted to see what's right in front of you.
I agree 💯%
Excellent video. You should do more like this. The how to and equipment videos are great but hearing more info on the objects and your impressions is both informative and entertaining. Love you work and sense of humor. Keep on keeping on.
Done.. just dropped a second in the same style :) Thanks for your encouragement!
Nice and different video for a change! Love the depth and good information!
Thanks for this Dylan. Great blend of fun, intrigue and science. One of your best to date. Cheers buddy!!
"it's forever alone just like you"
Meh, I don't need company to have a meaningless life.
But he did hide the „like you“ quite well 😂 ... probably took him almost as long to get this perfect like it took him to make an process the picture 😂
That ghostly face next to NGC6729 is just creepy.
Right?! I assumed that was going to be a part of the weirdest thing, I wanted some speculation on that!
@@IrishMutton6 Same here but we got nothing!
I see it and it is creepy looking.
What a cool image. Superb presentation Dylan. The office space references are a big plus. On another note, seeing regions of space like you're showcasing here, it really boggles the mind to consider that our universe could ever experience heat death with what might one day be a small galaxy careening around space borrowing material from other galaxies so long after our universes inception.
Interesting Video Dylan..I believe we Should Do Some Stellar Spectroscopy at Some Point..Good Observations of That Beautiful Nebula🔭👍😃
First thing I noticed was rounder stars. Looks you fixed the glitch. Also, good job with the dramatic music, keeping it at a reasonable volume.
I like how you make it fun and funny. Helps people who don’t care for space want to watch very entertaining and learned a lot! Good job! Keep them coming.
Honestly just love him. This channel is so relaxing 😌
I had no idea this nebula existed mainly because I live in the US, but also because it looks like a smeared poop stain! Nebulae are never this dark with giant regions devoid of stars. But still, great video and very informative!
Also 4:02 cracked me up! 😂
First time I saw Rupes Recta on the moon I thought I saw something artificial! Hahaha
This channel is freaking awesome! Great photos, and videos.
What a wonderful video... This is exactly why I push my self to explorer as much as I can in space. This video is truly inspirational. I love looking up and take a beautiful picture with my Celestron 8" for hours just to appreciate the beauty... Thanks for the video mate.
Thanks mate! I agree. When you get into the science of it whole layers of context and appreciation are added to what we do.
"I really hope they don't die before they finish this series." You do have a way with words, lol.
That is a really cool nebula. Also, thanks for the dramatic music with some drums. I think the weirdest thing I have seen/imaged is the Bubble Nebula, not because it is mind boggling or confusing, but just because it has that bubble look to it. Like someone attempted to blow a bubble with their gum and spit it out halfway through.
I just recently did my first shot at the Trifid Nebula and it amazes me at the star count in the pic alone...... love studying my pics as I always find something new in them.
Hi mate, perhaps your best video to date!!! Well done, the way that you took us on a journey... fantastic work... and also a fantastic image as always...you have made me curious so will have to point my telescope at this target, only a wide field refractor so don’t expect as much detail... thanks for sharing, truly brilliant. Have a good one
Excellent Video! I love that you put some science in behind the image. hope you do that more often? cheers!
OMG , easily the best Video you've done ! This was Entertaining and Educational and we hope you will consider doing more like this . Cheers .
Dylan, I love this format! I’m going to steal this idea
this video tickles me in all the right places, one of your best!
I’m glad I’ve touched Jesus .. you’ve touched me in many places too! Don’t worry, I didn’t attend the coronial inquiry.
I actually laughed out loud. Young, dumb and full of... hydrogen. 😂
Fantastic video Dylan. I doubt I'm alone when I say it would be interesting to see you take this approach with other objects in the future.
Am now considering it .. thank you !
Finally! We need more videos about the images themselves and less about gear. Great job. Wish more astrophotography YT channels would do this.
3:52 Does anyone see the face near to NGC6729 in the dark dust cloud?
yeah! I thought that was the weirdest thing in the video, couldn't find anything about it in a quick google search! Also, check out the one at 07:25
I love the technology that allows us to see through clouds and see what is really going on out there. Thanks for sharing.
Great shot. It does the blue nebulosity does reminds of the pleiades. But personally, It also reminds me of the Iris nebula, especially for the dark dust around it
what an awesome video Dylan, I will have to target this object once I get all my DSO scope parts together!
Great video Dylan! Very inspiring
Great commentary Dylan. The image was inspiring but the content of this video is thought-provoking. Keep them coming.
(Patrick Prokop, Savannah, GA)
Thanks, Dylan, for sharing your insight into an interesting structure. Agree wholeheartedly about taking the time to soak in and enjoy what's up there. Awesome image, as always.
Beautiful picture, but also amazing how much you found out about it! And the bearly hearable „like you“ in the middle ... just total Dylan 😂. Enjoyed it!
GODDD I love how you sound when you say "You are Watching Star Stuff"
Considering how far away some of these objects are (420+ light years for this one), deep sky astronomy is a bit like looking back in time. That cluster may no longer even be where it looks to be, or it may have changed significantly, or not at all, but we won't know unless we keep looking to find out how things unfolded some 420+ years ago. It would be interesting to shoot this particular cluster say every 3 to 6 months or so for the next 20 to 30 years, and then do a time lapse of all of the photos to actually "see" the changes taking place, if any, over that time.
Yes, and many objects are soooo much farther away. I went through that thought process when I captured M51. 26 million light years away. Civilizations could have formed prospered and crashed and burned while the photons that created my image, traveled to my camera sensor. For all we know, it is not even there anymore. A lot can happen in 26million years..... - Cheers
Hey D! Big Fan! Great Shot! I live in Nashville Tn, but I just purchased a 20" Planewave setup at Siding Springs in your neck of the woods. I'll be running it remotely from here once the testing is complete. Given the size of the Corona Australis I was wondering what the coordinates of your shot were. I'd like to shoot it myself. By the way, I am a musician (Hawk Wolinski) and spent a lot of time in Australia. I was Glenn Frey's keyboard player and played with him and LRB at your bi-centennial in Brisbane years back. I also spent 2 months in Melbourne producing a band called Big Pig. I know your are a musician. Keep up the good work.
Hey Hawk! Good to hear from a celebrity musician :) We have a grand piano at home which is my wife’s big toy. Search for Caldwell 68 and you’ll find the coordinates. Your siding springs installation sounds amazing!
@@DylanODonnell Thanks for the info! When I get Siding Springs up and running you're welcome to take the rig for a test drive. BTW, tell your wife I just bought a Fazioli 6'!! So how do I get you a personal message so we stay in touch?
What books, videos or other material would you recommend for a 57 year old that wants to get into Astrophotography? I have been on and off been into astronomy for 45 years, but never did photography of stars before.
Good question. I rely on UA-cam and forums because most books on the topic are already out of date. The field has changed a lot in recent years even.
Looks like the astro equivalent of Steven King's The Mist.
Great video. I find that I am much more interested in figuring out what I am seeing when I've spent a lot of time creating an astro image. That's science! Nice job. More please.
I love the Office Space reference! And I really enjoyed watching you discuss what was captured in one of your own images. I'd love to see more of these in the future, if possible.
Hi Chuck. I’ve been designing optical systems for over 40 years. Spitzer Space Telescope, camera aboard CASSINI craft and LORRI telescope on New Horizons mission to Pluto.
Proper sampling is determined by the Nyquist theorem. You want at least 2 pixels across the Airy disk. This means 4 pixels (2 x 2) is the minimum you want. Over sampling is fine but you don’t want to under sample.
The Airy diameter d is calculated by
d = 2.44 x wavelength x F/# .
So the maximum pixel size p would be d/2.
d/2 = p = 1.22 x wavelength x F/#
For a Celestron 8”, the F/# = 10 and assume the wavelength is 0.5 microns.
This gives a maximum pixel size of
p = 1.22 x 0.5 x 10 = 6.1 microns.
This is the proper way to determine pixel size.
Angular resolution alpha is given by
alpha = 2.44 x wavelength/D
Where D is the diameter of your aperture. This is the full, not half angle of your diffraction limit in radians.
For a C8, we have
alpha = 2.44 x 0.0005/(8 x 25.4) = 6.6 x 10^-6 radians (1.36 arc sec).
Paul
Great explanation Paul .. I might try integrating this max pixel size as an output on the Bintel astronomy calculator. Thanks for explaining the math.
Awesome. Sincerely. What an incredible photo and a very interesting video.
Great video Dylan. Good to have the science in relation to the photography. More like this please.
Try applying the Electric Universes theories of star formation to see if it makes any sense. The large Birkeland currents that power everything under this theory will be the key to anythng you find or figure out. I find it is always fun to use and apply a different theory to see if something fits. You have way to much fun, and I am glad you share it with us! Much thanks!!
Amazing Video Dylan, most of the time we care about the acquisition and tecnical stuff but we really forget what we are capturing with our equipment, simple Amazing. This is one of your best videos, Saludos!
Dylan, Thank you. That was probably one of your best and most thought-provoking vids so far. Bloody briliant. They are just not pretty pictures....
Thanks Fred! Because of the overwhelming positive response I did a second!
@@DylanODonnell bloody hell..did not want to encourage you that much...love Byron, wasted way too much time diving there...now live in the south west UK and miss those wonderful southern skies ..enjoy it whenever you can you lucky bugger. Ross
Haha thanks mate !
Good advice Dylan. I need to revisit some of my older shots and spend some time enjoying the results of countless hours of work.
I know right? Sometimes I find an image from last year or the year before and go "woah.. did I do that? why haven't I actually LOOKED at it before?"
You have blown my mind with this video. Opened up a lot to investigate and learn about. You made me laugh again to! Great images, clears skies! Going to grab a beer and watch again!
Hey thanks mate :) gotta remember what it’s all about eh!
Love the insight you provide, amazing image!!!!
One of your best videos to date. Dylan, you gotttaaa point that big PP boi EdgeHD 11 into that little nebula which you've deemed a possible protostar formation. It really looks cool even at this focal length I wonder what it looks like at a focal length of 2000+
Great video. I'd love to see more content like this where you talk about the science behind the objects you capture - really interesting!
just great and incredible, thanks for sharing your thoughts and the image!
Thanks!
Love your passion and images.
Look at Dylan, showing off his schooling!
Great job buddy! I love the informative tone in the video!
What a Fantastic Hobby we have, and a great Video.
Nice one Dylan, thanks. Best one for a while.
Thx Phil!
I really like this, this is one of the best videos you've ever made
Ahh thx Jacob !
@@DylanODonnell I like watching your channel because you're just down the road from me, i live on the goldie so our Astrophotography conditions are probably very similar, so if it's raining here it's probably raining down there so at least I've got someone to share my frustrations with 😂
Jacob Harasymenko haha yep.. break tonight !
@@DylanODonnell yeah its a bit patchy tonight
Great video, really enjoyed. Would be great to do a series on "weirdest thing through my telescope" sticking to the night sky not life in general.
Outstanding, thanks for sharing Dylan!
Thx Tom!
Great video!! Corona australis has always been one of my favourite things to point out to friends in the night sky, super interesting to see and hear about all of this!! My dad loves your videos and sent this one to me because its one of the few things ive found and pointed out before him 😂
How cool is that! You found the weirdest thing ever for him .. nice work! Glad he enjoys the videos! Thanks MJ (and MJs dad!)
I see you are experimenting with different video formats, I like it, please don't stop! :)
Great video. Point that 11" scope towards a galaxy cluster and it will give you endless things to ponder.
Also, no mention of that head looking out at you?
Kanipe and Webb's books are amazing manuals of star stuff. I compare their written word to the videos that David Butler does. No way I can read and absorb it all, but it's fun trying.
Interesting area...another worth monitoring and imaging is Mc Neil's nebula close to M78
nice one Dylan, enjoyed the deep dive - makes for good content; although too bad you couldn't squeeze ngc 6743 into the frame - makes for a good deep sky combo
You mean 6723 .. the glob? Looks great in those widefield views huh! bonkers field. But yeh, unrelated to what’s going on in the cloud group.
Funny. I attempted to grab a few subs of that region last night while waiting for the Helix Nebula to show up from behind a tree. But I failed miserably since I didn't realize it was a reflection nebula with very little H-alpha signal (I was already setup for narrowband imaging)
Yeh it’s really dim and diffuse in Ha.. I tried too!
Really great video. Well done, you. So nice for you to be in the Southern Hemisphere, except for that polar align stuff.
Beautiful work. Congratulations.
Great video..your theme music reminds me of Sprockets from SNL ..love it!
Wow that’s an awesome image Dylan! Man your images are super clean.. thanks for the video🔭
Awesome video, Dylan. Could it be that some of these structures are residue of an ancient prehistoric galaxy (or multiple galaxies?) that have already (for the most part) combined with the milky way? Perhaps 400-ish light years isn't 'where?' we'd expect to find this kind of residue of ancient galaxy colliding efforts if there was residue still orbiting around the milky way?
pretty good breakdown of a weird part of the sky. excellent as usual :)
“We’ll go straight into the picture”
2:36
Fascinating, will add to my observation list.
Hi Would really appreciate your advice!! I've bought Celestron 800 EDGE HD with Celestron 0,7 focal reducer. I shoot from very light polluted skies and rely on Optolong L-Pro 2'' filter. I use EOS Canon 60D. But how on earth do I connect the 2'' filter? Any ideas? Which adapters should I use. I'm totally lost, sorry
You need to do more of these in-depth explanations. Really well done!
I will, thanks :)
Dylan, love your stuff, just awesome! I just bought a Celestron SLT 127 and I just wanted to ask if you have any recommendations on enhancing the 127 experience? Bought a new 18mm optic from Celestron, great for Jupiter and our moon, the mars races by like crazy, no chance at all getting it even close to focused! Need a few tips? Thanks, Scott
Amazing . i want just to ask about which application did you use here 5:57 ? thx in advance
Sky guide for iOS (just my phone)
Wonderful video and imaging Dylan! Really awesome “Star Stuff”! Your videos inspire all of us to look deeper, but observe everything. Still the best intro ever! 🇨🇦
Thanks Canada ! 🍁 🏒
"... a bit like you... " ,,... ahajhaj brill !! now I'm crying... thanks D ahahjahaj Salute amigo !!!
love the "office space" nod!
The way u bring the info and do the edits and the little Jokes, it is just a masterpiece, love ur video's and ur random ideas like this one, keep em coming 🥰🚀🔭✨
Thanks so much Stef! I’m glad it works 😄
What a cool target! Thanks for this one, Dylan. I don't think I've seen an an astrophotographer on UA-cam go into a real analysis of the target itself like this. P.S. Loved the war drums.
Thanks Dennis! That’s what I was going for! It’s more than pixel pushing.
Definitely one of your best. Great to add context to the final image. Much more ‘really look at this!’ - and not look at me! 👍🏼
Dylan! I know Astrophotography is your main gig but damn that was an engaging 'investigative astronomy' talk!
I actually thought this video would tank because I wasn’t talking about Astrophotography! Now I realise it’s not just me who want to know more about the what than the how.
@@DylanODonnell Well if you continue to get more good feedback maybe you'll consider doing more content like this?
@@DylanODonnell i like a good physics lecture i watch cfa and other uni lectures (when they are on dam beer bug ) at the uni of youtube (not smart enough for a real uni ) most of it i feel the breeze as it goes over my head but i still enjoy all this star stuff .... sorry shameless plug of your channel lol ..you might enjoy this ..... did you know beetlegeist is dimming again ua-cam.com/video/qjAWW6OtNkk/v-deo.html .... not a lecture just another channel i like
cheers
james D