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Caoimhin's Content
Ireland
Приєднався 12 гру 2022
Talking about stars and planets in the night sky. We'll look into the future so I can show you how the sky will look in advance, and if the weather is too cloudy for you in real life, you'll still get to see the sky here!
I will mostly be showing the sky from Ireland, including some Irish language videos, but we will look at the view from other parts of the world as well.
You can check out my website at caoimhinscontent.ie.
The software I use is Stellarium, you can learn more about it at stellarium.org
I will mostly be showing the sky from Ireland, including some Irish language videos, but we will look at the view from other parts of the world as well.
You can check out my website at caoimhinscontent.ie.
The software I use is Stellarium, you can learn more about it at stellarium.org
The Parade of Planets is Yet to Come and Earth in Retrograde!
You can skip to 3:30 if you've heard enough about the Parade of Planets, but the way it's being reported upon really grinds my gears. . .
Most of this video is about Earth in retrograde, just like Mars, as viewed from Mercury and Venus.
You can also keep track of my videos on my website, where you'll also find a short write-up of their content:
caoimhinscontent.ie/
You can learn more about the software I use here:
stellarium.org/
Most of this video is about Earth in retrograde, just like Mars, as viewed from Mercury and Venus.
You can also keep track of my videos on my website, where you'll also find a short write-up of their content:
caoimhinscontent.ie/
You can learn more about the software I use here:
stellarium.org/
Переглядів: 42
Відео
Mars in Retrograde and the Martian Seasons
Переглядів 8414 годин тому
As Mars moves past opposition, it does something pretty strange. It begins to move backwards in the sky for a few days, before changing direction again and continuing onwards! This is the retrograde motion of Mars, tough just like Venus and Mercury it is only apparent motion. We will take a closer look in this video, as well as watching the seasons change from Mars! You can also keep track of m...
Makemake, the Rest, and a Bonus ISS!
Переглядів 6819 годин тому
In this video we will be closing out the dwarf planets with Makemake, along with some of the candidate objects that may be considered dwarf planets in the future. However, it's hard not to discuss the ISS if it happens to zip across the sky, as it does at the beginning of this video. You can also keep track of my videos on my website, where you'll also find a short write-up of their content: ca...
The Light of the Moon, Venus and their Shadows
Переглядів 199День тому
The light of the Full Moon is bright enough to cast a shadow, as long as you are in a dark enough area, and it seems like Venus can as well. However, we never get to see Venus as bright as it can be, for that we'll have to travel down to Mercury . . . You can also keep track of my videos on my website, where you'll also find a short write-up of their content: caoimhinscontent.ie/ You can learn ...
The Parade of Planets and the Ecliptic: Are they Aligned?
Переглядів 15714 днів тому
No! Venus will pass over the ecliptic, but the fours planets gracing our sky in January will not all occur on the exact same line. However, close enough is pretty good as well, and even if we don't get a four way conjunction, there will be a pretty close conjunction of Venus and Saturn, so we have that at least. You can also keep track of my videos on my website, where you'll also find a short ...
Looking into 2025: Eclipses and More!
Переглядів 22114 днів тому
As we come into 2025, I thought it would be nice to take a quick look forward to prepare for the coming year. As well as all of the planets in February, there will be several eclipses, both solar and lunar, this year. We will of course take a closer look at these events as they come up. You can also keep track of my videos on my website, where you'll also find a short write-up of their content:...
The Night Sky for January 2025
Переглядів 46621 день тому
Now that we've look at New Year's Eve, it's time to look ahead into January to begin 2025. With a conjunction of the Full Moon and Mars as well as an occultation of Saturn earlier in the month, there is a lot to look forward to. We also briefly look ahead to February when all 7 planets will be in the sky together. You can also keep track of my videos on my website, where you'll also find a shor...
New Year's Eve: The Stars at Midnight and Dawn
Переглядів 8321 день тому
2024 is practically upon us, so we're taking a deeper look into the first month of the year. Most things will only change a little as we leave 2023, but fast moving planets like Mercury and occasional events such as meteor showers add a little variation. We've got a whole year full of various sorts of eclipses and other phenomena so make sure to keep an eye on the channel for updates and previe...
Year 0 and Venus at Sunset
Переглядів 32128 днів тому
You can also keep track of my videos on my website, where you'll also find a short write-up of their content: caoimhinscontent.ie/ You can learn more about the software I use here: stellarium.org/
Oíche Nollag agus Oíche na hAthbhliana | Christmas Night and New Year's Night
Переглядів 37Місяць тому
In this Irish language video, we take a look at the night sky for the night of Christmas and New Years Eve. These dates maybe even more famous than the Winter Solstice, and New Year's in particular is commonly a late night. If you weren't up early to celebrate the Winter Solstice, you can still catch Mercury in the morning, along with much more. You can also keep track of my videos on my websit...
The December Solstice: Winter or Summer?
Переглядів 128Місяць тому
IN this video we are going to look at the upcoming solstice and where it means summer rather than winter, by taking a loo kat the sky from vario0us southern latitudes. We'll also look a little ahead into 2025 to see an upcoming comet! You can also keep track of my videos on my website, where you'll also find a short write-up of their content: caoimhinscontent.ie/ You can learn more about the so...
Late December Sky: The Geminids Meteor Shower and the Moon
Переглядів 107Місяць тому
Now that we've seen how great the planets will look in late December, it's time to look at some of the other things we can see. The Geminids should look great this weekend on the night of the 13th, while the Moon rises and sets in its most northerly position. You can also keep track of my videos on my website, where you'll also find a short write-up of their content: caoimhinscontent.ie/ You ca...
Telescopes and Binoculars: What to Observe
Переглядів 279Місяць тому
In this video we will be taking a look at various objects through various binoculars and telescopes, particularly at what kind of objects each tool is best suited to observe. If you're planning on getting your own telescope or binoculars soon, this might help you pick. You can check out the second link below if you'd like to try Stellarium for yourself. You can also keep track of my videos at: ...
Midwinter 2024: A Great Night for Planets!
Переглядів 65Місяць тому
We are fast approaching the end of the year, and just before that comes midwinter and the winter solstice. I have spoken about solstices and the way the Sun moves in the past, but this year in particular we have a lot of planets in the sky over the course of midwinters night, and midwinters eve as well. We will use the planets to highlight just how long the night gets for us here in Ireland. Yo...
Even Newer Named Stars and Planets
Переглядів 82Місяць тому
Following on from last week, where we looked at stars and planets renamed in 2015 and 2019, we look at more planets named in 2019 and a couple from the newest batch of renaming in 2022. You can also keep track of my videos on my website, where you'll also find a short write-up of their content: caoimhinscontent.ie/ You can learn more about the software I use here: stellarium.org/
Haumea: Another Dwarf Planet, Another (Minor) Controversy
Переглядів 65Місяць тому
Haumea: Another Dwarf Planet, Another (Minor) Controversy
Deireadh Samhain agus ar aghaidh go Nollag / The End of November and on to December
Переглядів 412 місяці тому
Deireadh Samhain agus ar aghaidh go Nollag / The End of November and on to December
From November to December: Jupiter at Opposition and More Meteor Showers!
Переглядів 1782 місяці тому
From November to December: Jupiter at Opposition and More Meteor Showers!
Dark Matter and Modified Newtonian Dynamics: A Very Brief Introduction
Переглядів 1412 місяці тому
Dark Matter and Modified Newtonian Dynamics: A Very Brief Introduction
Planet X or Planet 9: The Mysterious Hypothetical Planet
Переглядів 2012 місяці тому
Planet X or Planet 9: The Mysterious Hypothetical Planet
November Meteors and Comet S1 Atlas Update
Переглядів 1222 місяці тому
November Meteors and Comet S1 Atlas Update
A Look Ahead to the November Night Sky
Переглядів 4732 місяці тому
A Look Ahead to the November Night Sky
An Spéir ar Oíche Shamhna! / The Sky on Halloween!
Переглядів 492 місяці тому
An Spéir ar Oíche Shamhna! / The Sky on Halloween!
Eris: The Dwarf Planet that Caused all the Strife and Discord
Переглядів 2193 місяці тому
Eris: The Dwarf Planet that Caused all the Strife and Discord
No Nova? Corona Borealis and the Blaze Star
Переглядів 2 тис.3 місяці тому
No Nova? Corona Borealis and the Blaze Star
The October Supermoon: the Most Super of the Year?
Переглядів 1313 місяці тому
The October Supermoon: the Most Super of the Year?
October's Pair of Comets: 2023 A3 and 2024 S1
Переглядів 1,5 тис.3 місяці тому
October's Pair of Comets: 2023 A3 and 2024 S1
I have rolled the time and i think i got the brightest version of Mars I know i said this before for 2033 summer but however It will shine the brightest it will of the 21st century 2097 summer has mars in Sagittarius and My goodness it is even brighter than maximum brightness of Jupiter I don't wanna pass out before 2097 now after i know that Also could you tell about 2040 September 8th because that is the best planetary event of this century
Mars brighter than Jupiter? That sounds impossible, but I'll check it out myself! Absolutely, I'll make a video looking ahead to some future events soon.
@@CaoimhinsContentthere is a cool trick to find mars at its brightest Wait until it's July or June Simulate year by year so earth's location doesn't change but Mars's location changes Eventually Mars will come in Sagittarius or Capricornus and I'm guaranteed when mars will be at opposition around Sagittarius or Capricornus it will be brighter than Jupiter at all times (brighter than-2.66)
Uhh what happened to the webcam 😅
I had a lighting issue that stopped my greenscreen from working, but I am working on a solution to prevent such issues in the future!
Hello, iv just purchased some celestron skymaster 15x70 binoculars and used them for the first time tonight. I found one of the brightest stars but not sure what one it was but it had a very pink sparkly look to it. I'm wondering if I'm still out of focus as I'm adjusting them without wearing my glasses. I'm both long and short sighted so hopefully that's not an issue. I'm struggling to find good views the swirling galaxies. Can you help please?
Usually the focus on a binoculars or telescope can "take over" for the function of glasses, but if your eyesight is complex then it might be worth trying through the glasses as well, just in case. If you're in the Northern Hemisphere, the Andromeda Galaxy is up pretty high at the moment, if you look back on my channel I have a video featuring the Square of Pegasus where I explain how to find it. Either way, I would start by maybe looking at the Pleiades or Orion's Sword, and making sure that you can see those clearly and in sharp focus, then hunting for galaxies after that.
@@CaoimhinsContent thank you I'll try with my glasses too.
Best of luck!
The comment didn't load and I forgot what I was abt to comment Yt has been real glitchy last few days
Woww Gemini has 3 heads now Pollux Castor Mars
And they're all still brothers in the Greek tradition!
Would love to see retrograde motion of the earth from the inner planets Mercury and Venus I think earth doesn't go as slow as mars but not as fast as mercury as viewed from here Since year of Earth is just 1.6233 Times longer than Venus but like 4.5 times longer than mercury it would be cool to check how quickly earth enters and leaves retrograde motion I mean it should be very fast since mercury moves so quickly in our skies from morning appearances to evening in just a week or 2 Also August 21 2025 has something unique and rare to offer 2nd Best planetary event of the Year
That is a good idea, that's absolutely something I can make a video out of, thanks again! Oh, what event?
@@CaoimhinsContentin the pre dawn sky there are 3 planets and our Cresent 🌙 sandwiched between them 3 It is a magnificent sight to see in the morning time Mercury Venus and Jupiter all in span of 10 degrees Extremely shocked to see Venus is still brighter than anything else even earth can't be brighter Even though earth is much closer to mars And has a little big visual diameter This shocked me more than any space fact in over a year
Nice, three planets close together like that is awesome, I'll certainly have to keep it in mind for August. It is crazy, the reflective atmosphere makes a really big difference, Venus is a great example of how important albedo is for stuff like that.
@@CaoimhinsContentI'll keep checking this year and notify you about something special of a sky event Next time such would happen in May 19 2026, It's a cool conjunction too with the 3 brightest objects visible from earth
Will you do a live coverage of the upcoming Ecliptic Alignment and how rare is the celestial show for if it is possible it would be a spectacle and stunning planetary parade to witness for us astrophile enthusiast??
I don't usually do live coverage, I prefer to let people know things a bit in advance, rather than looking at them as they happen. I will however cover the full 7 planets in the sky once Mercury joins in later. Thankfully, this spectacle isn't actually that rare, though it is nice to get it in the evening rather than the morning.
The Iss has been a regular object for us in here for like 3-4 days It was so bright 2 days ago because it passed overhead Thanks to my insanely zoom able camera I got a very small pic of Iss I checked in stellarium and it had peaked at a -3.77 magnitude It is a perfect magnitude Brighter than Jupiter Dimmer than venus My father was completely shocked when i said 3 2 1 disappear The iss actually disappeared because it didn't reflect light It was a fun evening 2 days ago Went out just 13 mins ago and Mars is overhead very close to moon but sadly couldn't see the occultation
That's awesome, I don't think we ever get to see it right over head here, at least not often, must have been great to actually photograph it! I love seeing it apparently wink out of existence, the largest man made structure in space just disappearing is so strange to witness. Ah well, I'm sure there'll be another occultation of Mars in the not to distant future
Saw the occultation map of yesterday Ireland is in the map or close Did you get to see it? @@CaoimhinsContent
@@CaoimhinsContentThe summer of 2033 has mars at opposition with -2.55 magnitude But currently it's only -1.4 or something close Why does the opposition of same planet has so much variation of magnitude?
Nice, not even a decade away! I've been looking, and I think that between the inclinational differences and elliptical shape of the orbits, some oppositions bring us closer than others. There may be other factors as well, like the season on Mars, the icecaps are a lot more reflective. It's probably a few things, but it does seem odd
The occultation was definitely visible, but not for me, too many clouds unfortunately.
Vid idea:- Since opposition of mars is in a couple of days Why not just go on mars and have a look at the sky from Mars Seasons are same as earth there too Hope you try this out
That's a great idea! I'm planning on looking at the retrograde motion of Mars at opposition in a video soon, adding seasons and the tilt of Mars to that should work, great suggestion
@@CaoimhinsContenthaha Happy to help ❤
Hello from Canada. Nice presentation! 😊
Welcome from Ireland, thank you so much!
did i just find a hidden gem channel for beginner amateur astronomers? cool explanation, subbed!
Thank you so much, that's exactly what I aim to be, welcome!
I just did the maths and got this -7.5 magnitude is A 12 watt bulb kept 126 meters away Easy enough to cast a shadow
I haven’t used Stellarium very much but I now know that you can go off-planet. Fancy that! Thank you. I will be trying that myself.
It's a fantastic piece of software, there's a video on my channel from a while back that goes through some of the features as well
Look at that A quick upload from our man 😁 Btw how are you so loud even without a microphone 🤔
Thank you for the triggering inspiration! I think it's just good acoustics, and I am fairly loud naturally, but some day soon I'll have a mic of my own.
@@CaoimhinsContentthat day won't be far Hope you get some better video equipment and create even better things for us ❤❤ Also if you can see the moon and Venus both have some light spread out like what happens in light pollution kind of like a bulb far in the fog That looks really cool on Venus though Btw would Jupiter be brighter if it replaces venus We know the consequences but just curious After all Jupiter has a huge reflective surface and more light from the sun to reflect With a greater visual diameter compared to venus
I was looking for something and ChatGPT provide link of this video😂
Wow, I guess saying please and thank you to the AI's is paying off!
Very interesting, great video. Go raibh maith agat Caoimhin
Fáilte romhat, glad you liked it
Great info man
Thanks for watching!
Don't you feel bad because you can't see the southern hemisphere sky Even from lower latitude where the sun comes overhead We can't see many stars But cannopus is barely visible People living in Australia have soo much to see Not much is to view here in Northern Hemisphere Maybe it's just become a habit and i have got bored of northern sky But i seriously wish to see the southern sky Do you want to see the southern sky as bad as well?
I don't think I can even see Canopus, not easily anyway! It would be nice to see the Magellanic Clouds and Alpha Centauri, but I think us having Andromeda is a fair trade. What I'd love to see is the core of the Milky Way from near the equator, especially from a desert like the Atacama, that's meant to be a stunning view
@@CaoimhinsContentThe Core of milky way is getting tougher to see cuz of light pollution everywhere I feel like I've seen the core of Milky way 2-4 times in July of 2024 but it's wasn't like the pictures More like a blackish hue of cloud Sort of like a smoke Sadly i have tried my all but Andromeda galaxy is not possible to view from the sub-urban to rural area
Absolutely, I'm lucky to be relatively near to two International Dark Sky protected areas, so there you can get a really impressive view, but those kinds of darks skies are what you need. It's sad that so many rural areas still have enough light to block out the details.
It became 2025 while watching your video here in Nepal So be happy that you were the first person i listened to at new yr
That's awesome, that does make me happy, I hope you have a great 2025!
. . Yo Lad, a poem from few yrs ago ..( thought appropriate) . . Stupid . I'll move to the city when i can see the Stars, . I'd count myself Stupid to be blind of Mars, . So i count you Stupid eating from Jars, . Electricity bound I.Q. feeding beer flowing Bars. . . Tele blinded eyes where minds are Marred, . Wisdom absent cities where sense is Barred, . Escape to the country where Druids once Starred, . Or you'll drink yourself Stupid with the rest of the Jarred. . Dawhe. . Thanks for all de info. .
Thanks for sharing the poem, happy new year!
we could go out in midnight of January for that view But the freezing temperature isn't too friendly of a condition + The haze is bad too Haze gets so bad here in humud country of Nepal that venus also looks like brightness of Tarzed ( Altair's companion ) It's painful because of the annoying haze Can't even get the view of the best sky
Absolutely, it will be a great view, if you're wrapped up against the cold! Humidity is a problem for us too, it's so annoying when something cool happens but it's hidden by haze, hopefully we'll get some clear skies in the new year
. . Oh .. and Happy Christmas Lad. . to you and yours. .
Happy Christmas to you too, thanks for the all support and engagement
. . Thanks Caoimhin .
. . Ta me go mall as Gaeilge. . Go raibh maith agat Caoimhin. Nollaig shona. .
Nollaig Shona, tá mall níos fear ná faic!
Merry Christmas to you and yours, Caoimhin! 🎅🎄🎊🥂🎁 Thanks for all your informative content, and here's to many more great videos in 2025!
And also to you! Thank you for watching, I'm sure it's a great year ahead!
There is the winter Triangle of Betelgeuse Procyon Sirius but another triangle Similar to the original winter triangle of Jupiter mars and Sirius is also there which is cool because it's double or more the size of the original winter triangle
I might go over the star winter triangle in a video soon, I've been meaning to look at asterisms again
. . Procyon & Sirius .. . Skolan and Bran . Finn's two dogs. .
There is a comet called "C/2024 G3 (ATLAS)" that will approach perihilion on January 2025, but only observable in the southern hemisphere. Observable in the northern hemisphere, but only near the horizon (perihilion).
Mentioning this in the latest video, thanks for letting me know!
Nice to see ya
irish names will never not confuse me 😂 great vid tho
I'm right now looking for binoculars as an extension to my 8" SCT. Btw the problem you couldn't show the phases of Venus in the video was probably due to the 40mm eye piece you selected. You should rather stick to something average like 6-10" for SCTs and Newtons and change through the eye pieces to show the viewing experience. As for my f/10 instrument I can say that the whole range of Baader Morpheus eye pieces are excellent. The 16" Meade you showed costs around $25.000 so yeah not that achievable.
That's a good point, I'll have to make a video focusing more on eyepieces themselves at some point. An 8" SCT would be a good example to use as well, they're a good size, 16" is definitely a bit on the pricey side!
Excellent video, thanks
. .. . Go raibh maith agat .. Caoimhin .
. .. . Go raibh maith agat .. Caoimhin .
Fáilte romhat!
. . Go raibh maith agat .
Relativistic dilation explains dark matter. Mass that is dilated is smeared through spacetime relative to an outside observer. It's what our high school teachers were talking about when they said "mass becomes infinite at the speed of light". A graph illustrates its squared nature, dilation increases at an exponential rate the closer you get to the speed of light. Time dilation is just one aspect of dilation. It occurs wherever there is an astronomical quantity of mass. This includes the centers of very high mass stars and the overwhelming majority of galaxy centers. The mass at the center of our own galaxy is dilated. This means that there is no valid XYZ coordinate we can attribute to it, you can't point your finger at something that is smeared through spacetime. In other words that mass is all around us. It's the "missing mass" needed to explain galaxy rotation curves. Dilation does not occur in galaxies with low mass centers because they do not have enough mass to achieve relativistic velocities. It has been confirmed in 6 ultra diffuse galaxies including NGC 1052-DF2 and DF4 to have no dark matter, in other words they have normal rotation rates.
That's interesting, I've only seen that as a further alternative theory, as some sources explain the diffuse NGC 1052 galaxies as being galaxies stripped of dark matter rather than insufficiently dense cores, though I suppose mass distribution would have an effect if MOND is the system. Interesting that you got taught that in high school as well, I didn't do physics for the latter part of my highschool-equivalent, but I don't remember my coevals who did going as far as relativity!
@CaoimhinsContent I am an older physics nerd, I realized dilation explains dark matter over 10 years ago. I made a video on the subject before I found out about those galaxies. There is no doubt in my mind that all galaxies with low mass centers have normal/near normal rotation rates. The best way to understand dilation is to imagine a spaceship traveling at a constant acceleration rate. When the ship reaches 50% light speed, as viewed from an Earthbound observer with a magically powerful telescope, it would appear normal because as the graph shows nothing has changed at that point. When the ship reaches 75% light speed it would appear fuzzy because as the graph shows relativistic effects would be noticeable at that point. When the ship reaches 99% light speed it would not be visible because every aspect of its existence would be smeared through spacetime relative to an Earthbound observer. This is the state of mass in our galactic center. It's not just there, it's everywhere.
@CaoimhinsContent Einstein explained dark matter/galaxy rotation curves in 1939. "The essential result of this investigation is a clear understanding as to why the Schwarzchild singularities (Schwarzchild was the first to raise the issue of General Relativity predicting singularities) do not exist in physical reality. Although the theory given here treats only clusters (star) whose particles move along circular paths it does seem to be subject to reasonable doubt that more general cases will have analogous results. The Schwarzchild singularities do not appear for the reason that matter cannot be concentrated arbitrarily. And this is due to the fact that otherwise the constituting particles would reach the velocity of light." He was referring to dilation. There is no singularity/black hole/concentration of mass in our galactic center. That would violate the known laws of physics.
Okay, I hold with the observational evidence of the supermassive Sagittarius A* black hole, such as the motion of stars near the center, but I do think that violating the known laws of physics is the point, the known laws of physics are insufficient to explain observed phenomenon, necessitating the creation of new laws. Of course, I could certainly be wrong.
@@CaoimhinsContent 99.8% of the mass in our solar system is in the sun. 99.9% of the mass in an atom is in the nucleus. This indicates 100's of trillions of solar masses at the center of common spiral galaxies. There is no way to know this through observation. The interference alone, dilation alone or gravitational lensing alone would make that virtually impossible. The SagA numbers are far too low to be realistic. Other studies concluded far higher numbers. A fundamental question is "why can't we see light from the galactic center". The modern explanation is because gravitational forces are so strong there that not even light can escape, even though the mass of the photon is zero. The original and correct explanation is because the mass/energy there is dilated relative to an Earthbound observer.
I saw u today
Hope you enjoyed the talk!
Keep it up Your explanation is so good Deserves mor man 😢
I will, glad you enjoyed it!
. . Lave de rest a de Blackberries chun na sióg. .
Cinnte!
. . Go raibh maith agat. .
. . Go raibh maith agat .
I think you should add a zoomed picture-in-picture of the date. I am thankful that someone is analyzing the stars for me so that I can just put it on my watchlist and go grab my telescope. But most of the info is irrelevant if I don’t know when this will occur. Even though you sometimes say the time of the month or the day, I would like to see it for myself all the time.
I'll see if I can find a good way to do that, but if you take a look just above the captions region near the middle of the screen, Stellarium's built in time and date should be visible. It is a little small and you may need to pause the video, but it should be there if you need it.
Blaze doesn't go completely supernovae until 2058; by the year 2192 it became a full-on bright nebulaic gas/dust cloud region of extreme proportials that is visible even during daylight hours from many parts of this great planet. Thank you for your videos, these are important.
ua-cam.com/video/ZTF41FnbRnE/v-deo.html முன்னோர்கள் முட்டாளா இல்ல நாம முட்டாளா.... சிதம்பர ரகசியம் கட்டுக்கதையா!!! தமிழ்ப் புத்தாண்டு தையா? சித்திரையா? சிதம்பரம் நடராஜர் கோயில் மனித குலத்தின் பொக்கிஷம்... பண்டைய மனிதர்களின் ஒருங்கிணைந்த அறிவு பொக்கிஷம் சிதம்பரம் கோவிலில் உள்ளது.
We not going to talk about that star in that area that has been super huge and pulsing?
I'm not sure which pulsating variable you're referring too, but some of the more recently discovered ones wouldn't have their locations in Stellarium by default, I'd have to load them in. Any one in particular?
Why does it say “Diameter: 2.0 km” if it is 33 ft?
I think it might be a default or placeholder for small objects in the Minor Planet Center Database, but it could also just be a mistake.
. . Yo Lad .. as it approaches winter Soltace .. . The view from Newgrange , not just Sun Rise .. . Over a 24 hr period, a whole band of the sky is visible. 30 or 40 Galaxies i recall . Different 2024AD due to precession. . Many of our Myths, in my opinion, seem to describe long term Stellar events. . . Eg. Fionn (Orion) hunting with Skolan Little Dog) and Bran(Sirius) run past him chasing a Deer ( which went behind a hill and dissapeared ie. Set ) Sirius & lit Dog are set to pass by Orions knees, taking many aeons .. . So i suggest, many many of the oldest stories are about celestial Events [sorry, juat recall, no references ar hand] . . Many different sky observatories (newgrange+hundreds in their day) facing different directions . . I've backed off now, from ancient sky details , lists & lists .. but still love the sky . . anything u can do about cloud cover? .
There are definitely some oral histories, I think most are lost or only partly recorded, about certain stars rising at certain times. One issue is names, sometimes a story about a stat rising behind a certain hill at a certain time is recorded, but nobody knows which hill any more because the transmission of Irish across the generations was broken. The various stone circles, some of them certainly seem to track other days, like the equinoxes and cross quarter days. Some passage tombs might line up with certain things rising and setting in certain dates as well. Unfortunately clouds are outside my domain, but I'm keeping my fingers crossed for some clear skies!
. . Well .. here's the madder part. . As a x physicist, optics& solar cells being my area('93) the stone basins look very similar in shape to a satellite dish. I cannot test this since I'm nobody. Tried contacting some in field. They only have to be wetted( not damaged, by scraping with bones put in) to test how well the basins focus light. The large(broken) newgrande basin would have been the main collector, the other 2 basins for more complicated optic setup. Just from photos, one can see the reflected sheen, un-distorted. That means that the shaping of the basins was extremely high precission work. Any non perfect symmetries would be revealed in distorted sheen [from overhead lights] . If Newgrange is possibly an optics lab, and the evidence suggests this .. modern thought will do anything other than test if ancients were really smart. Know anyone with clout/contacts ? . . Oh, a piece of thread, hung from opposite lips of Basin [Level] would follow the contour almost exactly precisely if the basin is parabolic.. simple test but i'm not cleared for such an exotic non-destructive experiment. .
@@nawhedawhe6905 I would say the best thing is go there after heavy rain, Newgrange is far from waterproof, a good fog could wet the interior pretty well. I'd also suggest going and asking a tour guide to hang a string for you. The people in charge may not want to deal with it, but an individual guide might. However, I will say that the main basin, to me at least, seems a little oblong. The internal curvature is really smooth, but the circumference of the lip doesn't look truly circular. Then again, it's certainly true that Neolithic people generally get far less credit than they are due when it comes to how smart they were. There's a good chance that droplets of water were used for magnification, even if scientific theories of optics came much later.
@@CaoimhinsContent. . A brillant suggestion to ask a tour guide. . However .... (yup) . the basins needs to be perfectly level [really really], the basins need to be spotless ie. No bones placed within[a recent ignorant action]. . I'd Rather not on de sly, as that could ONLY convince "me" .. what good would that be .. i'd probably, really sound like "nobody can tell me otherwise" then .. . . As for outline shape, u can cut/break off a corner .. the rest still functions perfectly . In modern buses, a "flat" magnifier on de back window allows driver to see Magnified image.. NOT properly flat, but edge rings recessed to "" be flatish" .. the point being .. over all outline shape not important. . A Reflection shows up distortions, if any, very clearly. View reflection in window 30 yds from you. That window is "NOT" flat. Train your eye. . I've NOT seen a sheen from the broken basin, in photos. . Photos of course are NOT definite proof, i know .. . The perfection of the sheen reflections in photos one basin suggests to me that the possibility should [ ..and Can ] be tested. A few internet pics easily found... and just study the sheen carefully. I may be wrong, but it's what i judge as "" exemplary "" perfection, having one time worked/studied in optics. . . If this WAS true.. then you'd want to hear me about how our oldest legends describe a fantastical world/universe... one step at a time. Thanks for responding.
Absolutely, any investigations like that should be public and transparent as much as possible. I'm not in optics myself, buy I am a huge fan of Fresnel lenses, being able to get the magnification flattened like that is fascinating. Another thought, maybe you could get a very good cast or 3d model of the basins, people are pretty guarded with the originals.
. . Nice one lad. Always a few days behind. .
So it is doing phoenix death moves?
Surprisingly, this is an ongoing phoenix! Technically, the smaller star is already "dead", it just keeps getting rejuvenated by material from its companion. So even after it flares this time, it should do it again in another 80 years.
Why doesn’t it show up when I search for it on the Stellarium app (both the web and phone versions)?
I'm not sure, but I'd say that it just hasn't been loaded in yet. I had to get the orbital dynamics from the Minor Planet Center for the desktop app, I'm not sure if you can do the same on mobile or web.
@@CaoimhinsContent Thanks for the reply. :)
@@ViktorBAd You're very welcome.
Hello from Texas
Hello!
So what’s 2024 A4? It will be visible?
That was an unfortunate typo, it's 2024 S1, and it may be visible, but mostly for people close to the equator. There is also a chance that it will fall apart as it comes around the Sun.
@@CaoimhinsContent So it will not be visible for those in the northern hemisphere such as myself? I was fortunate enough to actually see Tsuchinshan ATLAS though. I assume this other one would not be as bright?
Not easily, it's very low to the horizon when it's close enough to the Sun to be illuminated, but it does depend how far North you are. It's expected to be brighter than A3 Tsuchinshan-Atlas when it's close to the Sun, but that will be quite hard to spot, and probably won't last long.