How far away is it - 10 - The Milky Way (4K)
Вставка
- Опубліковано 15 чер 2024
- Document - howfarawayisit.com/wp-content/...
Index - howfarawayisit.com/wp-content/...
Music free version - • Video
In this segment of our “How far away is it” video book, we cover the structure of the Milky Way galaxy.
We start with a high-level description of the three main components: the galactic center with its black hole, the galactic disk with its spiral arms, and the galactic halo stretching far out in all directions using the European Space Agency spacecraft Gaia’s findings. We also show how full images of the Milky Way can be created from within the galaxy.
Using the full power of the Hubble, Spitzer, and Chandra space telescopes, we take a deep dive into the center of our galaxy with its central bulge. We detail the evidence for the existence of a supermassive black hole, Sagittarius A*, at the very center of the galaxy’s core. We cover and illustrate the work done by the UCLA Galactic Centre Group in conjunction with the new Keck observatory on top of the Mauna Kea volcano in Hawaii, and the Max Plank Institute for Extraterrestrial Physics in Germany and more recently and the European Southern Observatory with its array of Very Large Telescopes in Chile. This includes a look at how close the star S2 approached Sgr A* and what that black hole might look like. In addition, we cover stellar interferometry with ducks on a pond to see how these measurements were done.
Next, we go a level deeper into the nature of a Black Hole singularity. We cover the Schwarzschild radius, event horizon, accretion disk, gravitational lensing, and gamma-ray jets. We then actually build Sgr A*. In addition to the supermassive black hole, we take a look at a solar mass black hole.
We then cover the structure of the galactic disk including: the bar core, the two 3 Parsec arms, Scutum-Centaurus, Perseus, Sagittarius with its Orion Spur, Norma and the Outer Arm. We review the locations of various celestial objects we’ve seen in previous Milky Way segments, to show how close to us they are. We also cover the disk’s rotation and the Sun’s orbit. We look at our solar system’s Ecliptic Plane with respect to the galactic plane. And we cover the galaxy’s dust clouds and how we see them with radio astronomy. We also cover the galaxy’s rotation curve and its connection with dark matter.
Next, we cover the galactic halo. We start with Shapley’s globular cluster map that first showed that we were not at the center of the galaxy. We cover the size of the halo, the inner and outer halos orbital motion, and the newly discovered galaxy within our galaxy called Gaia-Enceladus. We end with recent discoveries of massive amounts of Hydrogen in the halo and this findings impact on the Dark Matter debate. And we end with a calculation of the entire Milky Way’s mass.
We end our galaxy coverage by illustrating how far one would have to go to take a picture that would include what we see in our illustrations. We conclude the chapter with another look at the distance ladder that took us across the galaxy.
@00:00 Beethoven, Ludwig van: Symphony No.9 in D minor Op.125, 'Choral' : III Adagio molto e cantabile; Daniel Barenboim & Staatskapelle Berlin; from the album “Beethoven : Symphonies Nos 1 - 9 & Overtures” 2004
@24:47 Tchaikovsky, Pyotr Ilyich: Symphony No. 5 in E minor, Op. 64; Bernard Haitink, Royal Concertgebouw Orchestra, Amsterdam, 2012
"It did not wobble" my favorite line in this series.
😂
😄😴😴
I was sleeping and listening to this but when I heard him say this it made me pay attention for some reason
You know that effect in memes and comedies mostly when it's a shot of somebody thinking hard as all these math problems and equations are flying through the air to give the impression that the person is thinking extremely hard? It would be hilarious to have a scene in which that happens and after a 30-second montage of that the guy is like...
"Um...it didn't wobble"
Lol.
I can't imagine trying to comprehend this script without the animations. Brilliant product, as usual, Mr.Butler.
No words! This is beyond amazing! Have learnt more watching your videos than in any schools or books in my entire life!
Never stop teaching us.....the world needs you and your type now more than ever.
Saw no mention of the Kepler satilite which found 600 billion planets with water having a sun that could possibly support life. Am I living in a dream?
Did I have contact with beings from beyond? Well that's a whole different story.👽
Very informative ,, makes us imagine in such a way we are travelling at snspeed of light to the unknown worlds , thanks you man and those who exerted efforts for us to watch n learn from u guys ..
It's entertainment. Not education. The moment people start calling YouShit educational is the moment we're doomed, as a species.
@@atriciacannon4579 Relax - we will never get there. Also, we(scientists) argue about the composition of asteroids passing through our own solar system - our backyard. You think telescopes can ACCURATELY view stars countless light years away? No. No they can't.
David, let me just say this: I've watched (twice) pretty much everything related to science, space and physics on youtube and sadly the God of Algorithm only just revealed your channel to me now...
and in my opinion your content is by far one of the best on the entire internet.
you Sir, are the David Attenborough of measurement, space and physics documentary. Bravo.
Its amazing how we know exactly where the earth is relative to the centre of the galaxy.
David Butler is one of the best astronomers ever and a great teacher
I just noticed that he doesn't need captions because his pronounciation is so perfect that the auto generated ones work perfectly.
Im surprised the AI didn't add punctuation he is so clear
Amir he has a channel about AI as well.
Glad I found this channel, a new favorite addition to my astronomy/black hole/ physics/ space UA-cam addiction. Some of my favorites are SEA, SoaceRIP, parralaxNick, and of course PBS SpaceTime.
@@erictko85 what is the name of that channel?
@@amir3515 ua-cam.com/video/y6120QOlsfU/v-deo.html
David, I've just "discovered" your channel, and I'd like to thank you for taking the time to do this. From the few vids I've watch so far, you've done a spectacular job, and I'm looking forward to watching them all. I have also "recently become "retired" due to medical illness, after 20+ years as a practicing chemical engineer in the polymer/chemical/petrochemical industry (with OxyChem), and like you, have also always had a fascination and desire to know more about space & and our amazing universe. Thank you SO MUCH for using your time and intellect to produce such a high quality and interesting series to your "new friends" and allowing us to share it with our "friends & family" to spread the knowledge and passion for this amazing universe and our ever expanding knowledge of it. Many Blessings to you, my friend! & please keep it up for as long as you can and are inspired to do so. Your work is appreciated!
Thanks Dan. I'm getting really good feedback from all the viewers. I really appreciate it.
Cool video guys!
Please support my channel
ua-cam.com/video/Fxvtow_erEU/v-deo.html
Check out video of Saturn and rings from my binoculars!!!!
I would like to offer a tumbs up as well David Butler. Well done and greatly appreciated.
Yeah Dan, i agree, he rocks maybe you could do a chemistry vid!
@@howfarawayisit you are one cool customer my friend
this is the best space/physics chanel I've seen on youtube
My question if we can see so far why can't we see the flag and the rover we left on the moon
@@jugganuat6440 not good enough telescopes.
So a $500 dollar Nikon camera can see the rough surface of the moon but a telescope and satellites that cost hundreds of millions giving images light years away can't see the moon closeup I'm not buying it.
@@jugganuat6440 telescopes can see stuff in detail within a football field of radius. but the flag is much smaller than that. there are photos of the landing site and shadow of the flag
@@jugganuat6440 im not giving anyone a pass. The photos of the landing site and drive marks on moons soil is visible from telescope images. It cannot be explained naturally other than humans have been on the moon. I think youve underestimated the size of the craters compared to the flag and man made objects. We are extremely small compared to the solar system objects
I’ve been binging these videos that past few days and this channel ties everything I’ve been learning over the years together. You have given CONTEXT to many scientific terms, and don’t just list them off. Thank you for the simple and succinct lessons
I can't believe there was a period of my life where I didn't have your videos. I can't begin to thank you enough for this creation of yours. A true wonder.
His voice is very soothing and calm
love how this is very accessible without being dumbed down too much.
I wish the Professor had more time available to create more of his excellent videos.
Thank you from all of us admiring your work on these videos.
Excellent!!!
You are one of the most calm and poised gentlemen I have ever seen, your documentaries are relaxing. Congratulations for being so smart and as perfect as a human being can get. I don't like to spoil people with praise and compliments, but you definitely deserve it.
It is so incredible how you are able to speak the language of the novice astronomer wannabe to make us understand what is going on. You're my modern day Einstein when it comes to understanding what's out there regardless of whether humans are were or will be alive and I thank you for that with that said bazinga
Sir the day you have more subscribers then pewdepie, Bieber etc the world would be a far better and calm place to live in. Amazing channel. Thank you for your efforts.
Lol@ peedepie....🤣🤣
Not many show much interest in science. Struggle threw life with impunity and never pertain to reality to solve such problems that lay in front of their existance. Man is better than that. Quote: If you aren't learning. You aren't living.
so cringe
@@chidieberendukwu ni*gga
@@jakubzneba1965 what's the cringe in what he said?
Perfect video for falling asleep.. Classical music and voice on point !
Best video on the Milky Way available (including professional productions on tv). Thank you sir!
Soothing, educational, a perfect voice and beautiful background music, what a mix, loving it.
Cool video guys!
Please support my channel
ua-cam.com/video/Fxvtow_erEU/v-deo.html
Check out video of Saturn and rings from my binoculars!!!!
Rob, I'm so happy to hear I'm not the only one! I'm a 41 year old IT professional who happens to love science and astronomy and while there is some very entertaining content on the topic on UA-cam, it's rare to find content that isn't in a constant race to zip through content as if even a moment's silence is anathema. I LOVE the pacing David Butler has on his series, he gives it time to breathe, respects our intelligence, doesn't use crazy CGI or clickbait, he just presents the current science and explains HOW this body of knowledge came to be known and presents it as clearly as I've ever heard. The choice of classical music for the background, even going to the effort of creating chapter markers with musical details - it all comes together to make this entire 'How Far Away Is It' video book playlist one of the finest things I've seen on the internet, full stop.
This is David Butler's "Wikipedia", in that he's literally added to the substance of the Universe with this work.
@@DanielVerberne Hi Daniel, great to hear from you, you're absolutely right, I love this channel, dare we use the word professional to describe presentation, content, visual and the factual that this channel gives us, to describe anything on UA-cam. Not only that, there is a calmness and psychological element too, in the whole way this channel affects my thought processes.
The universe is a complex and at times a difficult topic to take in. This channel respects the different levels of its viewers. Its a beautiful thing and I too love watching and listening, in fact try just listening and not watching, it's a different experience again.
Thanks Daniel.
@@DanielVerberne “…he gives it time to breathe…”
Your description nails it beautifully
@@jamesbattista1466 Thank you kindly, James.
for the past 3-4 years I have really gotten into documentaries about space, the galaxy and, the universe. but only today did I come across your channel. and I must say you are one of the most informative, eloquent and, articulated gentlemen I have ever had the pleasure of watching on youtube. plus your choice of music during your videos is brilliant. I look forward to watching more.
Ever since I found David Butler's "How ____ is it?" video seires.... I've been struck with awe at everything I see, hear, taste, and touch. From the stars over my head to the sand under my feet, the world, the sky, the air, the very space between things, are now a wonder to me. Many great men seeking enlightenment climbed mountains to sit with a bodhisattva or a guru for a while to understand better the Universe and its mysteries.... I only had to click my way to this channel for the same experience. Thank you Mr. Butler.
Very nice comment. Thanks.
Your voice and calm speed oof explaining everything is perfect, great job, really enjoyed video.
My late mother's birthday was today, and this really brightened my day. She and I always loved stargazing and talking about space
Thank you, Mr. Butler, your videos are incredible.
I'm glad David found a way to explain science with ducks
best documentary about the Milky Way I have ever seen. Outstanding!!!
Use of this classical music and kind of narration with that soothing voice make this a unique astronomy channel.
this has replaced ASMR for me, really chill voice and really cool info. love ya, appreciate ya
This is one of my favorite sci-fi stories of the milky way :) keep uploading them. Really helps me relax.
Vuksani Rrushi
It is sci-fact
Billions of dollars spent; very complex stuff, yet you make it so easy to watch and understand on my iPad. Thanks a billion 😊🙏
Ok there Sagan.
The absolutely most amazing videos on UA-cam in my opinion
I'm very sick and your videos help me from learning to relaxing, especially when im up all night with insomnia and sickness, this is the best video learning set ever!!THANK YOU for being you and doing this after such a career you've had. Again thank you.
Austin Jackson hope you get better.
I'm extremely sick as well and am also helped by the videos.
Love you. Hope you’re doing ok!
@@ezabjacorn6208 thank you for sharing, and having some compassion for others, sorry for your sickness. Much love, sunshine and smiles for you!!!
@@Tadesan L.o.v.e you back!!!! Thank you and smiles, love, and happiness for you. Positive vibrations.
As melhoras amigo
This channel, and SpaceRip, are my two favorite for cosmology.
Good taste, my man. Maybe not everyone's cup of tea, but I also like the CrashCourse Astronomy series hosted by Phil Plait for a few years ago. Yes, it's fast paced (It's a crash course) but the clarity of explanations and Phil Plait's infectious passion and excitement for science outreach means that the series is another great resource. If you have CuriosityStream (or come across these shows elsewhere), the best space documentaries by my standards include "Destination: Moon" (In 5 small parts, if I recall correctly) is very inspirational about where humans should go next in terms of exploration, followed by "The Planets" by the BBC, both the original version from around 1999 and the more recent one hosted by Brian Cox. Honourable mention goes to 'Alien Planet', a 2005 Discovery Channel 'docu-movie', a feature-length documentary based in part on a speculative fiction novel by Wayne Barlowe, this doco depicts a future robotic mission to a planet called "Darwin IV" as three separate probes descend from a mothership to explore. The creatures and the lifecycles depicted are rare in fiction in that they are really, truly alien and represent quite a good example of shedding as much preconceptions about alien life as possible.
This channel is one of the best around here. Everything has a balance. Content, visuals, narrative, bg music, tone....I mean everything is perfect. Hearing those information by just sitting my couch and just by clicking is a huge blessing. We are so lucky and this situation makes me shocked sometimes. Just remembering 20 years ago makes me surprised. Today, we can reach whatever we want. And technology is one side of it but biggest part of this opportunity is content creators. We can reach one of the best scientific content because of you. Thank you so much for your all precious efforts Mr David Butler.
Im so glad im not the only one who thinks these are the best science videos on the internet. I wish my teachers in high school were as engaging as you.
thank you David. your videos show how the best things come from our passions. I will always watch your channel.
Enjoyable lecture about our galactic home.I love your music selection too,Tchaikovsky is one of my favorite composers!
So glad I found this channel. Calm, well narrated content without all the over-the-top production. Great use of classical music. This kind of reminds me of the original Cosmos.
The most authoritative channel on cosmology on YT.
Liked and subscribed...
Finally David is back. I was waiting for this for two months.
David, thank you for this series! It brings me back to my childhood when my best friend and I would sit in front of his computer with "StarryNight Backyard" open to a live virtual view of the night sky from our location. We'd search for satellites crossing our area and try to find them in the sky, it's also the first time I saw Andromeda, and was blown away you could see it with the naked eye(the location we were at had very little light pollution). We'd click on random asteroids and stars and check out the distances, which, depending how far away they were, would be in either AU, or light years. This series is like having a narration of all those nights from my childhood if that makes sense(can't think of a better way to phrase it).
Truly appreciate your great work! I've watched all your video series and it's been a critical aid in connecting my understanding (college-level engineering) with my interest in astronomy / cosmology. I particularly love your deep zoom looks into specific regions of space, and the careful captioning of specific images with distances. These have helped begin to construct a better spacial understanding at various cosmological scales that previously had been abstract points / pictures. Thanks again for the awesome work!
Yay new video. One of my favorite channels. Plays all night.
A year ago when I would hear Milky Way I would have assumed the delicious candy bar. Now after watching hours of his videos I’m completely amazed by all of the info I have gathered of the universe. His videos are truly amazing and I have developed a new passion for the great beyond so thank you!
This is like therapy. just discovered this channel. Im fascinated, in awe but so relaxed
You are a great teacher
Stellar work. As usual.
Thx.
Another outstanding video. You're the first channel I click on.
Cool video guys!
Please support my channel
ua-cam.com/video/Fxvtow_erEU/v-deo.html
Check out video of Saturn and rings from my binoculars!!!!
Hey, David. Greetings from Brazil. I love your channel... I am growing very fond of astronomy, your content is very informative and very well made!
I think this is the video that finally made me realize the true astounding distances that we are experiencing in this universe. The distances and the time needed to travel those distances is almost unimaginable. It truly takes deep thoughts to come close to understanding the true size of the universe. It's amazing to think about floating on this rock and experiencing this life I'm blessed with. Thank you for this video all involved.
Thank you professor. Your videos are very fascinating.
It must be quite time consuming yet interesting to prepare such high quality and educational video for the world to learn about the origin of us, thank you and wishing your channel continued success.
Ive stumbled upon his channel after watching hundreds of other videos on the cosmos. Why would @DavidButler have such few subscribers. One of the best explanations I've seen are here. If I had access to this kind of guidance as a child, I'd have another career for sure . Never too late to learn! A BIG THANKYOU FROM INDIA @DavidButler . All space enthusiasts and keen learners need you. 🙏
David, you have a phenomenal channel. As a current PhD student, it's refreshing to see such poignant yet digestible and eloquently-presented coverage of an interesting topic. Please, keep up the good work!
Thank you so much for these series! Your attention to important details is captivating.
This is by far the best space doc I’ve seen and I’ve seen a ton of them. It is so well thought out and presented. Bravo! I wish you had longer videos👏
Agreed. His videos are the best things I've ever seen.
I have only just had this pop up on my UA-cam feed, and after watching I really felt I had to see how other people felt about this, as I am really impressed by it.
I'm so glad that everyone feels the same, you deserve a lot of credit (especially by teaching me anything).
I'm often irritated by UA-cam videos but you help iron me out. Thank you very much.
Woot! Yeah a new DB video! I am going to sit back and enjoy this masterpiece.
Love your channel and your way of explaining.
Subscribed! My new bed time ritual
Thank you @David Butler. My thirst for more knowledge of the amazing universe we are so part of is hard to quench, but I really believe that subscribing and watching your channel is going a long way to help do just that. Highly appreciate your hard work.
Thank you Mr. Butler. Such a delight to watch and listen to your work. Everything is so well mapped out and explained. Last year I played Sagan’s Cosmos to my kids at bedtime. This year it is your channel (the relaxing music adds to it). Kudos to you.
This episode is much updated from the original. Still love the music. Huge fan since series 1st hit YT. My favorite phrase fr. entire series is: “IT DID NOT WOBBLE”.
Absolutely brilliant Channel. I love watching everything David Butler has done.
I had surgery yesterday and your voice calmed me and gave me a restful night sleep. Thank you.
Imagine being a kid and your grandpa butler puts you to sleep with bedtime stories like these.
It did not wobble ! ==> ⚫️. I love this style of teaching !! These videos have done as much for me as Seroquel 🙏🏾
I ❤️your work.
This was like a massage for my brain
Absolutely incredible visual presentation.
Just amazing stuff!!!....."how do it know!!!"
Thank you
Never before have I seen a channel that explains it awesomely and imformativly
Very educative David, thanks for putting all together. Pura vida
This was amazing. Your explainations are perfect.
Absolutely brilliant and so engaging...thank you for this :-)
I'm getting addicted to these shows...
Great video, please make more long videos like these when possible.
I don’t thumbs up videos much however you sir earned this one UA-cam algorithm did a good job for once
No that's teaching. Brilliant mix of simplicity and complex. Thank you
Thanks for your knowledge, time, and efforts, good sir ! Much appreciated by this stranger from internetland.
Outstanding content!
Thank you for compiling so much disparate information into a accessible up to date understanding of our galaxy.
Documentaries that actually teach you stuff.
I have fallen even more in love with our galaxy and Universe watching this, thank you! 🌌💞
One could learn more in 20 mins here, than 4 years in high school.
Great job!!!
You've expanded my universe perspective to a new level: A conscience quantum leap.
Thanks for sharing with us all part of your evidently profound knowledge in such as didactic way.
I love and do appreciate your works.
Txs4sharing!!!
Great knowledge, but the high pitch music is a herdlels to grab it....... !
Billions of dollars , thousands of very bright minds , billons of years later, a slow pacing voice tells me this incredible story , my amount of respect , and amazement
can't be expressed , but this poem could comes close to it : The body melts into the universe.
,The universe melts into the
soundless voice.The sound melts into the allshining light.
And the light enters the bosom of
infinite joy................................
MR BUTLER,
THIS VIDEO IS Absolutely BEAUTIFUL, MIND BLOWING, FASCINATING.
THANK YOU VERY MUCH
REGARDS
CHRISTOPHER
Master of the Cosmos - David Butler.
Thanks profoundly for your work David; I've loved every minute of it. Your videos will be the soundtrack to the rest of my life.
Thank you for your interesting tutorial, all I can say is thank god these black holes are millions of light years away! Thank you again.
Your 4K video quality is the BEST!
These videos get better each time I check. Thank you for keeping up! "It did not wobble!" Wow, S2 almost bought the farm! Been following Astronomer Andres Ghez for years. So this is the explanation for the photo of M87?
The selection of the background music alone should stun any viewer.
If you look at the complexity of physics of the universe and human insignificance in this grand scheme, you may experience spiritual ecstasy....
Absolutely correct I remember I was in a depressed mood for a while and started learning about the universe Stars galaxies and made me feel like my problems in my life weren't that significant lol
The series of facts is amazing enough, but the 'how we know it' segments do a great job in supporting them without appeal to authority or credibility arguments. I still cannot form a mental picture of the size of our galaxy or universe, but at least I know some of the numbers now (and how they were measured)! Thank you.
Best space documentary ive ever seen.
it's strange that we even exist, everything.
What????
16:24 Hi there. It's not Schwartz-Child, it's Schwartz-Shield. It means Schild (Shield), not Child. :) i know i know. German can be confusing.
Someone that knows German...quick question, German uses the latin alphabet apart from one strange letter I have seen, " B " its not a capital B its a bit curlyer but the capital B is my best attempt, so what is it and how come German has 27 not 26 letters, or is it just a strange curly capital B German uses for some reason instead of this B....am I making any sense? would be better if my keyboard had one or I could draw it...but I cant...Oh well...have a nice day!
@@neilrusling3438 en.wikipedia.org/wiki/%C3%9F
@@thomasmiller1135 Thats the one...so its like SS...but not...but yes sort of....and so much info about it, thanks very much.
This is great work, David. Not easy to put this together.