Hi subscribers! This is a reupload of a video I released earlier this year which I had been meaning to reupload for a while. As it happened, there was some new and exciting relevant information released just yesterday from NASA about WD 1856 b which I have now included in the video. The old version had a pretty major mistake in it, where I said a neutron star is 10-29 solar masses, which is actually the mass range of the stars neutron stars originate from, so that has also been corrected. I will soon unlist the old version. Enjoy if you have never seen this before!
Thanks for the information. I saw the tweet yesterday and at first glance mistook the bigger to be a dwarf star...but soon realized the smaller sphere was the star.
2:02 We have all heard the factoid that if you were to put a neutron star next to the Earth, its magnetic field would draw the iron straight out of your blood. I say that if you were to put a neutron star next to the Earth, then having all the iron removed from your blood would be the least of your problems.
I wonder about the iron leaching. If that were the case, then it would siphon iron from all sources, including planetary iron cores, asteroids, meteors, etc. Hmmm.
@other account, did you know that our sun is a yellow dwarf star? It is actually white however our atmosphere is the main contributing factor in making it appear as though it is in fact yellow! Isn't that cool!?
If you think about it, there are plenty of astronomical bodies just floating out there in the unerverse that are not stars. The only reason we have not been able to find any of these bodies, is because the do not admit light. That makes searching for then 10000x harder
Did you know that our sun is a yellow dwarf star? Its actually white however our atmosphere is the main contributing factor in making it appear yellow to us!
Phas Low What? What are you talking about? Have someone Finally Discovered where the Venus Planet is. Or My comment could go vou! ARE YOU STUPID OR SOMETHING, THE PLANET CALLED “VENUS” HAS BEN DISCOVERED FOR Many years I r
What I'm trying to figure out is if it's just purely pictorial, or if the real position of stars in space actually manifest into that diagram. Like a 'projection' for lack of the right term, probably. If so then that's so cool! I absolutely loved physics of stars and galaxies as part of studying physics but never saw the H-R diagram like that before.
i just wanted to say how much i enjoy your videos. when i really started becoming interested in space, i was also just beginning to use youtube. your channel was the first one i really started following - this was back in 2015. i love how you post so often now and continue to wow me with your ability to explain the subject matter in such an interesting way with beautiful pictures and production. i have learned so much! thanks again :)
Short answer, there are known stars with a radius very near the radius of Jupiter. There are a number of exoplanets documented well enough have confidence they are 1.7x-3.0x the radius of Jupiter. There are also a number of stars believed to have radius smaller than Jupiter. So, while not 100% certain, there is strong evidence that the largest planets are larger than the smallest stars, including some red dwarf stars.
This is hands-down one of my favorite channels... really exceptional content. It always make me laugh because the narrator's (Alex's) manner of speaking reminds me of Jemaine Clement playing the crab in the movie Moana. I always get a chuckle out of the image of the crab from Moana narrating these videos. Just a funny mental image though, all the love for Alex and this channel!
What a interesting question to ponder upon. I've also wondered this sometimes. Thanks for the explanation. I don't know it as a fact, but I can safely assume that the content has been gathered from various sources. It's quite comprehensive and thorough.
Question: I recall planets above Jupiters mass tend to barely increase in size anymore, as they become more massive. The ‚puffy‘ planets, afaik, are swollen up from heat, due to close proximity to a powerful star. Soo , can such large planets actually exist in a puny brown dwarfs system?
Bigger? What is the size of a Star? Are brown dwarves Stars? And Sub Brown? And how do you classify Puffy Planets? Does the real size of a star include its photosphere, or the corona? How can we be sure of what we are observing?
Collaboration video with the host of the channel V101 science would be amazing. I would love to see what the two of you could come up with together. You both do awesome space content with awesome animations with both cool narration voices. I'm willing to bet that you guys could come up with some Discovery Channel stuff.
@@shreeanshushahakar5903 How did you figure this? Because I'd say, if the original star's core was massive enough, and it just collapsed in without a supernova (this only happens on the higher mass end, supernovae are usually the prelude to smaller black holes or neutron stars), then its more distant planets could survive. Saying "black holes only have rogue planets" is probably a statement you should back up with evidence.
@@vladskiobi I have evidence regarding this. In Dreksler Astral's video of Landing On Rogue Planets it is said that rogue Planets are Planets that orbit black holes.
I just made a video on what we mean by “bigger”. I appreciate you you explaining you mean volume, not mass. As volume is what our eyes can (but not alway) detect without measurements.
Super astronomy fan here. Sooo appreciate your vidz. Great visual presentations. And I love the way Alex narrates. His voice and accent makes for a relaxing but enthusiastic way to learning. Can't imagine anyone better suited. My only suggestion is if you can indicate whether a video clip or photo being shown are actual ones as opposed to simulations. Thank you very much!
An other great vid from my favorite YT channel. It's never boring and always informative. Because of Astrum I have learn about the star RS Puppis which to this day, still flabbergast me.
So the star WD-1865B has been discovered. I wonder if star WD-40 is the location where the doctors found the "slightly greasy solar atoms" as described in the film the Fifth Element?
Your videos are so informative and interesting especially for astronomy buff like me. Keep moving forward. I'm sure you will hit a million subscribers mark soon. 😊
Don't brown dwarfs still have a large ammount of fusion going on? Not enough to expend their atmosphere to a huge size like stars but still enough to get very hot by themselves if I remember correctly
A correction, Brown Stars do indeed fusion hydrogen at their cores but only deuterium+deuterium or deuterium+protium starting reaction, meaning that the fusible material is usually below 1 % of their mass and the fusion happens very low ratio. if not type of fusion is possible, then it is considered a giant planet.
Considering how many planets are bigger than Earth, I'm thinking we are probably a pretty small species. One thing that bugs me about sci-fi aliens. All about the same size.
The cosmos is full of wonder. Questions that will never be answered and that’s good. Students aiming for their Doctorate, will have a myriad of questions to be answered and discovered.
Sweet. Cool stuff Alex. I'd like to see a video done about what you project the James Webb telescope to be capable of. If we throw its view on any of these systems you just mentioned could you make a projection graphic of what we'd most likely see for example?
According to Leak Project (aka Rex Bear), he did a video about Planets turning into Stars (which is interesting). If we move from 3D to 5D, then that dimension change could quite possibly make that a reality.
Using the Kelvin-Helmholtz mechanism how much hotter and consequently, larger in diameter could Jupiter have potentially been in the early days of our solar system; how much smaller could it become before being halted by other effects such as matter degeneracy pressure?
This may be an idiotic question but theoretically can a planet be so massive that it changes which orbits which? Like reverse the typical planets orbiting a star to a star orbiting a planet? Or is that simply not possible?
Everything more massive than half the mass of Jupiter tends to shrink, hence at about 0.5 the mass of Jupiter you could see the biggest planets by volume. Technically speaking planets can also be brown dwarfs because brown dwarfs can have many elements that you’d expect from a planet.
I do love your videos, but the ammount of adds you put on them makes them unwatchable in anything that isn't a computer. I get the revenue is needed, but it hurts your channel. I do not watch it if it isn't in the computer. One or two small adds do not ruin the video....but more than that is not okay
No, because as you said mass limitations. The planet would have to be more massive than the star, which is impossible because then that planet would be considered a star and that star considered a planet
@@oliverv2848 Thinking about the smallest star found to be ~1,5 Jupiter Mass and the largest exoplanet to be ~20 JM. Why would this not be possible? I do realize it would be an outlandish case, and the dwarf star would have been ejected by a dual star system and cought by the supermassive planet. That still leaves the issue of the Exoplanets origin and its own supermassive star. Or the Exoplanet must have been a Wanderer, ejected from its own system.
It's said that Jupiter had once migrated to the inner solar system because the amount of material slewed off by the Sun slowed its orbit. This may have also happened with planet WD1856b when its orbit passed through material cast off by the star at the end of its red giant phase. Jupiter was prevented from moving too far into the inner system by the tug of Saturn, but WD1856b might not have had another giant planet on the other side to prevent its inward spiral.
Wouldn't happen. While planets can be larger than stars, stars will always have more mass, and thus, higher gravity, than planets. The reason being, is that there is a critical mass, where hydrogen starts to fuse into helium, where an object officially becomes a star. For a planet to have such a gravity that a star orbits it, it would have to be above this critical mass, meaning it has fusion, meaning it's also a star, not a planet.
Hi subscribers! This is a reupload of a video I released earlier this year which I had been meaning to reupload for a while. As it happened, there was some new and exciting relevant information released just yesterday from NASA about WD 1856 b which I have now included in the video. The old version had a pretty major mistake in it, where I said a neutron star is 10-29 solar masses, which is actually the mass range of the stars neutron stars originate from, so that has also been corrected. I will soon unlist the old version. Enjoy if you have never seen this before!
Nice
Hello! I'm a fan of your channel. Astronomy is my first love. Thanks for these videos!
Thanks for the information. I saw the tweet yesterday and at first glance mistook the bigger to be a dwarf star...but soon realized the smaller sphere was the star.
I noticed the mistake back when I first watched the video but I got what you were trying to say. Kudos for re-uploading it :)
Ah...that's why the title felt familiar. Glad to have a reason for rewatching. Thanks :)
2:02
We have all heard the factoid that if you were to put a neutron star next to the Earth, its magnetic field would draw the iron straight out of your blood.
I say that if you were to put a neutron star next to the Earth, then having all the iron removed from your blood would be the least of your problems.
I wonder about the iron leaching. If that were the case, then it would siphon iron from all sources, including planetary iron cores, asteroids, meteors, etc. Hmmm.
Blanca Camacho-Bonet yeah, iron in our blood is not magnetic afaik
@@Sadowsky46 what's afaik?
@@biancabonet acronym for "as far as i know"
@other account, did you know that our sun is a yellow dwarf star? It is actually white however our atmosphere is the main contributing factor in making it appear as though it is in fact yellow! Isn't that cool!?
4:38 the transition to the HR diagram is sick
If you think about it, there are plenty of astronomical bodies just floating out there in the unerverse that are not stars. The only reason we have not been able to find any of these bodies, is because the do not admit light. That makes searching for then 10000x harder
Rouge planets
And moons
And black holes that have no accretion disk
And intergalactic or interstellar dust
Planet: "Look at me, I am the star now".
Lmao
Lmao
Can a planet be considered bigger than it's star if it gets more Likes, Followers and/or Subscribers.
Haha cute
I read this hearing the voice of Mr. Meeseeks. 😬
Just here to boost the algorithm
This is the featured comment. Algorithm’s working great!
"Boost the algorithm" will soon become some sex related entry in urban dictionary.
Thx, just learned a new word lol 😄
For the algoritm. Let this channel go up and amongst the stars.
Did you know that our sun is a yellow dwarf star? Its actually white however our atmosphere is the main contributing factor in making it appear yellow to us!
I can't wait for your take on the Venus discovery!
I was gonna ask about this lol
me too
Phas Low What?
What are you talking about? Have someone Finally Discovered where the Venus Planet is.
Or
My comment could go vou!
ARE YOU STUPID OR SOMETHING, THE PLANET CALLED “VENUS” HAS BEN DISCOVERED
FOR Many years
I r
@@duckduckandeby405 phosphine was discovered at concentrations larger than what can be produced naturally
@@duckduckandeby405 So much effort for such a stupid and incoherent comment
That animation of the Hertzsprung Russell Diagram is so cool!!!
Yea
Thanks for telling me what it's called.
What I'm trying to figure out is if it's just purely pictorial, or if the real position of stars in space actually manifest into that diagram. Like a 'projection' for lack of the right term, probably. If so then that's so cool! I absolutely loved physics of stars and galaxies as part of studying physics but never saw the H-R diagram like that before.
I tend to like the videos before I watch them because I already know they're going to be great.
That's how I marry people
@@cesarcueto1995 touché.
likewise
That was very well done, as always. Thanks for going back and fixing the first version of this. It says a lot that you care enough to do that.
i just wanted to say how much i enjoy your videos. when i really started becoming interested in space, i was also just beginning to use youtube. your channel was the first one i really started following - this was back in 2015. i love how you post so often now and continue to wow me with your ability to explain the subject matter in such an interesting way with beautiful pictures and production. i have learned so much! thanks again :)
Love From India🇮🇳
We Love Your All Space Series
Very nice Alex. Amazing video. 👍👍💙
Fascinating stuff, I honestly regret not pursuing Astronomy .... love this stuff
I do remember watching this, but will happily watch it again since I watched it a couple months ago or so
How big can planets grow?
*talks about stars for 7minutes long*
But you know that it's basically the size of the celestial body that determines if it's one or the other, right?
@@educostanzo you mean the mass
Yeah wtf. Title should be different.
@@chomes8048 No it shouldn't.
Yep. I wanted to know more about these planets.
Short answer, there are known stars with a radius very near the radius of Jupiter. There are a number of exoplanets documented well enough have confidence they are 1.7x-3.0x the radius of Jupiter. There are also a number of stars believed to have radius smaller than Jupiter. So, while not 100% certain, there is strong evidence that the largest planets are larger than the smallest stars, including some red dwarf stars.
Yes, but the neat thing would be to find one of the largest planet with one of the smallest star in the same system and we haven't found that yet.
This is hands-down one of my favorite channels... really exceptional content. It always make me laugh because the narrator's (Alex's) manner of speaking reminds me of Jemaine Clement playing the crab in the movie Moana. I always get a chuckle out of the image of the crab from Moana narrating these videos. Just a funny mental image though, all the love for Alex and this channel!
What a interesting question to ponder upon. I've also wondered this sometimes.
Thanks for the explanation. I don't know it as a fact, but I can safely assume that the content has been gathered from various sources. It's quite comprehensive and thorough.
Really love your videos, you do a fantastic job! Your narration is soothing and very professional, you should do voice overs or ASMR videos!
To be honest, I zone out listening to you sometimes, just gazing at the cool pictures lol
Question: I recall planets above Jupiters mass tend to barely increase in size anymore, as they become more massive. The ‚puffy‘ planets, afaik, are swollen up from heat, due to close proximity to a powerful star.
Soo
, can such large planets actually exist in a puny brown dwarfs system?
Bigger? What is the size of a Star? Are brown dwarves Stars? And Sub Brown? And how do you classify Puffy Planets? Does the real size of a star include its photosphere, or the corona? How can we be sure of what we are observing?
Thanks for the update, Alex!
2:12 Whoa, that neutron star is directly above me and now I'm dead! (I'm from SF) 😂
Collaboration video with the host of the channel V101 science would be amazing. I would love to see what the two of you could come up with together. You both do awesome space content with awesome animations with both cool narration voices. I'm willing to bet that you guys could come up with some Discovery Channel stuff.
Dropping by to say Hi to my Astro partner.
Hi Astrum !
Beautiful as always.
Just so you know, the app he was using to simulate the different situations was universe sandbox 2.
Space Engine for the cinematics
I freakin love love love this channel!! Keep up the amazing work.
Love this channel! Love space talk, and your voice is so soothing. Good morning everyone have a blessed Sunday and a perfect start to a new week ❤️
Cool, never thought about neutron stars being smaller that their planets.
Apparently, even blackholes can have planets in stable orbits from a certain distance.
All the planets which are orbiting a black hole are Rogue planets
@@shreeanshushahakar5903 Far enough from event horizon can exist stable orbits.
@@shreeanshushahakar5903 How did you figure this? Because I'd say, if the original star's core was massive enough, and it just collapsed in without a supernova (this only happens on the higher mass end, supernovae are usually the prelude to smaller black holes or neutron stars), then its more distant planets could survive.
Saying "black holes only have rogue planets" is probably a statement you should back up with evidence.
@@vladskiobi I have evidence regarding this. In Dreksler Astral's video of Landing On Rogue Planets it is said that rogue Planets are Planets that orbit black holes.
Thanks for flashbanging me like 6 times in 8 minutes
Astrum is amazing them voice is so soothing along with the pictures and the learning. I hope you can get more subscribers😊
Love learning from this channel.
Incredible content and research, what a time to be interested in astrophysics.
Thank you Astrum you’re doing very special work
(About 4:00) We've detected a nearby system, to WD-1856. It's full of hydrocarbons, but seems to almost repel water ice objects. It's system WD-40.
Watching again for the new information! :)
I just made a video on what we mean by “bigger”. I appreciate you you explaining you mean volume, not mass. As volume is what our eyes can (but not alway) detect without measurements.
I really like your VO, very fitting for space videos.
Hi Sir, Great Video as always.
Could you please make one about the latest Venus-Phosphine Descovery?
small star: You all will be wiff me forever?
bigger planets: you're darn right little guy
Watched most of this video with my mouth hanging open...! Top job as always.
Super astronomy fan here. Sooo appreciate your vidz. Great visual presentations. And I love the way Alex narrates. His voice and accent makes for a relaxing but enthusiastic way to learning. Can't imagine anyone better suited. My only suggestion is if you can indicate whether a video clip or photo being shown are actual ones as opposed to simulations. Thank you very much!
Excellent video! Thanks for sharing.
An other great vid from my favorite YT channel. It's never boring and always informative.
Because of Astrum I have learn about the star RS Puppis which to this day, still flabbergast me.
Thx my bro
👍🏻
fuckinell i can HEAR the smile and joy in your voice in every video and its uplifting as well as interesting, many thanks sir :)
Ok this video was informative but was useless in answering the title, almost clickbaity...
At first I was like,"a planet bigger that its star?" After I watched though, I was like "Oh, duh" lololol
5 views,,,, 44 seconds ago. Man, people are fast
15 hours 2.1k views !
Or you just too slow
Wut...
Definitely Subscribing! This is my new special interest!
You should play "Weyoun" the character from Deep Space Nine, you've got the voice
could the gas planet have formed from the star's dust somehow?
So the star WD-1865B has been discovered. I wonder if star WD-40 is the location where the doctors found the "slightly greasy solar atoms" as described in the film the Fifth Element?
“This makes them quite dim stars, and they only get dimmer over time”
Same
Your videos are so informative and interesting especially for astronomy buff like me. Keep moving forward. I'm sure you will hit a million subscribers mark soon. 😊
Don't brown dwarfs still have a large ammount of fusion going on? Not enough to expend their atmosphere to a huge size like stars but still enough to get very hot by themselves if I remember correctly
Thumbnail: BIG PLANETS!!
Content: small stars
I really enjoy your content Astrum
A correction, Brown Stars do indeed fusion hydrogen at their cores but only deuterium+deuterium or deuterium+protium starting reaction, meaning that the fusible material is usually below 1 % of their mass and the fusion happens very low ratio. if not type of fusion is possible, then it is considered a giant planet.
I was like “wait a min...Mandela effect??”
I saw this video before, like half a year ago, so I was like whaaaat? 2 hours ago??
I from Mars but don't tell anyone!
I get those all the time 😅
@@TtrainInVain hello fellow alien i am a traveler from the planet pluto, i apologize for destroying your civilization
Excellent video
Jupiter: Wait, I'm smol now?
Universe: Always have been.
Always interesting, thank you.
3:05 I know where that footage is from, its from "How the Universe Works"!
Considering how many planets are bigger than Earth, I'm thinking we are probably a pretty small species. One thing that bugs me about sci-fi aliens. All about the same size.
Try disabling temperature if you are using Universe Sandbox 2... will prevent planets from getting blue
anyway love your videos
I knew that there were stars with "Beta" in their name. Now I find out there's (maybe) a "VHS" star?? Sweet!
Those stars with beta in its name are Bayer designations
Love this channel
The cosmos is full of wonder. Questions that will never be answered and that’s good. Students aiming for their Doctorate, will have a myriad of questions to be answered and discovered.
Thank you 😊
Oh Man bigger star Mystery needs to be solved👍👍
🙌U have motivated ME & MOST to establish their youtube brand🙏😇
Sweet. Cool stuff Alex.
I'd like to see a video done about what you project the James Webb telescope to be capable of. If we throw its view on any of these systems you just mentioned could you make a projection graphic of what we'd most likely see for example?
According to Leak Project (aka Rex Bear), he did a video about Planets turning into Stars (which is interesting).
If we move from 3D to 5D, then that dimension change could quite possibly make that a reality.
Using the Kelvin-Helmholtz mechanism how much hotter and consequently, larger in diameter could Jupiter have potentially been in the early days of our solar system; how much smaller could it become before being halted by other effects such as matter degeneracy pressure?
Mind blowing.
The universe is not only stranger than we imagine, it is stranger than we _can_ imagine.
Great video
Love to watch ur videos
This may be an idiotic question but theoretically can a planet be so massive that it changes which orbits which? Like reverse the typical planets orbiting a star to a star orbiting a planet? Or is that simply not possible?
Thank you
Im just wondering, couldn't be there life on brown dwarfs? I mean they could have an atmosphere and produce enough heat themselves to host life right?
There's no ground. And the temps are quite hot. Heck on some of them it rains molten rocks.
Now, about its moons, maybe.
This channel rocks 👌🏻
Love your videos, man!
Very beautiful
Everything more massive than half the mass of Jupiter tends to shrink, hence at about 0.5 the mass of Jupiter you could see the biggest planets by volume. Technically speaking planets can also be brown dwarfs because brown dwarfs can have many elements that you’d expect from a planet.
I do love your videos, but the ammount of adds you put on them makes them unwatchable in anything that isn't a computer. I get the revenue is needed, but it hurts your channel. I do not watch it if it isn't in the computer. One or two small adds do not ruin the video....but more than that is not okay
i literally had 0 adds on my phone
@@TechKidShazil how?
@@TechKidShazil and if you say doing nothing you are lying. I just opened it on the phone 6 fucking adds in a 12 min video
@@AnarchistPoop na man. I had no ads at all. Idk why
@@TechKidShazil cause you are lying?
What's the limit for a rocky planet?
I’m here because I want to learn…
… and to boost the CZcams algorithm of this video 🤓😁
I bought my girlfriend your rose galaxy displate :) good stuff
Due to size and weight limitations we expect planets to orbit stars
Could a star be orbiting a planet?
No, because as you said mass limitations. The planet would have to be more massive than the star, which is impossible because then that planet would be considered a star and that star considered a planet
@@oliverv2848 Thinking about the smallest star found to be ~1,5 Jupiter Mass and the largest exoplanet to be ~20 JM. Why would this not be possible?
I do realize it would be an outlandish case, and the dwarf star would have been ejected by a dual star system and cought by the supermassive planet.
That still leaves the issue of the Exoplanets origin and its own supermassive star. Or the Exoplanet must have been a Wanderer, ejected from its own system.
How could planets be larger than stars?
Taking more space
These videos are really hard to watch on my phone in a dark room at night
Another great video !
Love this
I love space content
Once again good video.
It's said that Jupiter had once migrated to the inner solar system because the amount of material slewed off by the Sun slowed its orbit. This may have also happened with planet WD1856b when its orbit passed through material cast off by the star at the end of its red giant phase.
Jupiter was prevented from moving too far into the inner system by the tug of Saturn, but WD1856b might not have had another giant planet on the other side to prevent its inward spiral.
What if there’s a system where the star orbits the planet
Probably, not possible
Wouldn't happen. While planets can be larger than stars, stars will always have more mass, and thus, higher gravity, than planets. The reason being, is that there is a critical mass, where hydrogen starts to fuse into helium, where an object officially becomes a star. For a planet to have such a gravity that a star orbits it, it would have to be above this critical mass, meaning it has fusion, meaning it's also a star, not a planet.