The Planets That Can Dwarf Stars | Size Comparison

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What makes a planet a planet? And what makes a star a star? Once we know this these defining characteristics, we start to notice that these definitions can overlap. Which begs the question, can a planet be bigger than its parent star?
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Image Credits: NASA/ESO/ESA/Hubble/Space Engine/Universe Sandbox
Music Credits: Marek Poledna

Опубликовано:

28 июн 2024

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Комментарии : 566

@astrumspace 3 года назад

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!

@gcnelite5983 3 года назад

Nice

@conanichigawa 3 года назад

Hello! I'm a fan of your channel. Astronomy is my first love. Thanks for these videos!

@biancabonet 3 года назад

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.

@sundarchip 3 года назад

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 :)

@noeldenever 3 года назад

Ah...that's why the title felt familiar. Glad to have a reason for rewatching. Thanks :)

@otheraccount5252 3 года назад

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.

@biancabonet 3 года назад

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.

@Sadowsky46 3 года назад

Blanca Camacho-Bonet yeah, iron in our blood is not magnetic afaik

@biancabonet 3 года назад

@@Sadowsky46 what's afaik?

@Satugai 3 года назад

@@biancabonet acronym for "as far as i know"

@scentlessapprentice88 3 года назад

@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!?

@gabrielhermesson9926 3 года назад

4:38 the transition to the HR diagram is sick

@mr.panda_1233 3 года назад

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

@maryann2628 Год назад

Rouge planets And moons And black holes that have no accretion disk And intergalactic or interstellar dust

@Patrick-S 3 года назад

Planet: "Look at me, I am the star now".

@Shadow77999 3 года назад

Lmao

@Helicopter7 3 года назад

Lmao

@Rhythm911 3 года назад

Can a planet be considered bigger than it's star if it gets more Likes, Followers and/or Subscribers.

@cesarcueto1995 3 года назад

Haha cute

@888PsyMike888 3 года назад

I read this hearing the voice of Mr. Meeseeks. 😬

@phaslow4393 3 года назад

I can't wait for your take on the Venus discovery!

@bigblubba1 3 года назад

I was gonna ask about this lol

@Dingshj 3 года назад

me too

@duckduckandeby405 3 года назад

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

@zakr1187 3 года назад

@@duckduckandeby405 phosphine was discovered at concentrations larger than what can be produced naturally

@scottabc72 3 года назад

@@duckduckandeby405 So much effort for such a stupid and incoherent comment

@bulbasaurvines8992 3 года назад

That animation of the Hertzsprung Russell Diagram is so cool!!!

@Shadow77999 3 года назад

Yea

@Vanished_Mostly 3 года назад

Thanks for telling me what it's called.

@Casowsky 2 года назад

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.

@gamingwithnate6098 3 года назад

I tend to like the videos before I watch them because I already know they're going to be great.

@cesarcueto1995 3 года назад

That's how I marry people

@roberthouston6562 3 года назад

@@cesarcueto1995 touché.

@righteousdescent2271 2 года назад

likewise

@CrankyPantss 3 года назад

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.

@void0094 3 года назад

Just here to boost the algorithm

@CodyBrumfield1 3 года назад

This is the featured comment. Algorithm’s working great!

@jimBobuu 3 года назад

"Boost the algorithm" will soon become some sex related entry in urban dictionary.

@ebonyhicks2013 3 года назад

Thx, just learned a new word lol 😄

@blueredbrick 3 года назад

For the algoritm. Let this channel go up and amongst the stars.

@scentlessapprentice88 3 года назад

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!

@AstrumBrasil 3 года назад

Very nice Alex. Amazing video. 👍👍💙

@jasmijnariel 3 года назад

How big can planets grow? *talks about stars for 7minutes long*

@educostanzo 3 года назад

But you know that it's basically the size of the celestial body that determines if it's one or the other, right?

@BushidoBrownSama 3 года назад

@@educostanzo you mean the mass

@chomes8048 2 года назад

Yeah wtf. Title should be different.

@Thesngian 2 года назад

@@chomes8048 No it shouldn't.

@Cr0zzle 2 года назад

Yep. I wanted to know more about these planets.

@lizzzzzzzz 3 года назад

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 :)

@carlcard7 2 года назад

Fascinating stuff, I honestly regret not pursuing Astronomy .... love this stuff

@jerry3790 3 года назад

I do remember watching this, but will happily watch it again since I watched it a couple months ago or so

@AstrolabMalaysia 3 года назад

Dropping by to say Hi to my Astro partner. Hi Astrum !

@genaricTallGuy 2 года назад

To be honest, I zone out listening to you sometimes, just gazing at the cool pictures lol

@XtinaFerrari 3 года назад

Beautiful as always.

@Slap7481 3 года назад

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 ❤️

@occamsrayzor 3 года назад

Thanks for the update, Alex!

@lutzderlurch7877 3 года назад

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?

@katiobrien7854 3 года назад

Love learning from this channel.

@Vivaswaan. 3 года назад

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.

@geoffstrickler 3 года назад

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.

@Tyranastrasza 2 года назад

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.

@dex1lsp 2 года назад

2:12 Whoa, that neutron star is directly above me and now I'm dead! (I'm from SF) 😂

@goatrectum 3 года назад

I freakin love love love this channel!! Keep up the amazing work.

@jbkhan1135 3 года назад

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!

@RobinPortnoff 3 года назад

I really like your VO, very fitting for space videos.

@Lilee177 3 года назад

Watching again for the new information! :)

@thecorlorlesspig1993 3 года назад

Astrum is amazing them voice is so soothing along with the pictures and the learning. I hope you can get more subscribers😊

@Particulator 3 года назад

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.

@mountainman8775 2 года назад

Incredible content and research, what a time to be interested in astrophysics. Thank you Astrum you’re doing very special work

@MichelleIbarraMHAEdD 3 года назад

Really love your videos, you do a fantastic job! Your narration is soothing and very professional, you should do voice overs or ASMR videos!

@IHaveAuraLilBro 2 года назад

Thanks for flashbanging me like 6 times in 8 minutes

@stevenbaumann8692 3 года назад

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.

@riglia1982 11 месяцев назад

Excellent video! Thanks for sharing.

@aayushagarwal4138 3 года назад

Cool, never thought about neutron stars being smaller that their planets.

@biancabonet 3 года назад

Apparently, even blackholes can have planets in stable orbits from a certain distance.

@shreeanshushahakar5903 3 года назад

All the planets which are orbiting a black hole are Rogue planets

@biancabonet 3 года назад

@@shreeanshushahakar5903 Far enough from event horizon can exist stable orbits.

@vladskiobi 2 года назад

@@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.

@shreeanshushahakar5903 2 года назад

@@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.

@bigaschwing2296 3 года назад

Love your videos, man!

@sodaithink 3 года назад

Just so you know, the app he was using to simulate the different situations was universe sandbox 2.

@equaius893 2 года назад

Space Engine for the cinematics

@elvisstar5813 3 года назад

Amazing info!

@MaximusRacellius 3 года назад

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.

@maryluharmon3267 3 года назад

Awesome video! Thank you!

@doqpler 2 года назад

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!

@TheDaddiestBear 2 года назад

Always interesting, thank you.

@erictrudel1164 3 года назад

Another great video !

@adambarbosa4179 3 года назад

I really enjoy your content Astrum

@theelectricorigins846 3 года назад

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?

@emmadeofsteel 2 года назад

Watched most of this video with my mouth hanging open...! Top job as always.

@Xcyper33 3 года назад

small star: You all will be wiff me forever? bigger planets: you're darn right little guy

@octobersky9639 3 года назад

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. 😊

@jordanlee6885 2 года назад

Definitely Subscribing! This is my new special interest!

@mikioni 3 года назад

Excellent video

@trapptrapp9387 3 года назад

Thx my bro 👍🏻

@TheWatcherxx99 3 года назад

Love this channel

@davejones9469 Год назад

(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.

@shesagoodgirl 2 года назад

fuckinell i can HEAR the smile and joy in your voice in every video and its uplifting as well as interesting, many thanks sir :)

@naponroy 3 года назад

5 views,,,, 44 seconds ago. Man, people are fast

@jazskater007 3 года назад

15 hours 2.1k views !

@Limbbiscuit 3 года назад

Or you just too slow

@cesarcueto1995 3 года назад

Wut...

@Suburp212 3 года назад

Once again good video.

@_abdul 3 года назад

Hi Sir, Great Video as always. Could you please make one about the latest Venus-Phosphine Descovery?

@Budjarn 2 года назад

“This makes them quite dim stars, and they only get dimmer over time” Same

@zepicness Год назад

Great video

@louithrottler 3 года назад

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?

@dharmeshpathak5596 3 года назад

Love to watch ur videos

@harsha345155 3 года назад

Where do you get this amazing animations?

@FaizanAzad. 3 года назад

Love From India🇮🇳 We Love Your All Space Series

@ariessweety8883 3 года назад

At first I was like,"a planet bigger that its star?" After I watched though, I was like "Oh, duh" lololol

@PassportReasons 2 года назад

You should play "Weyoun" the character from Deep Space Nine, you've got the voice

@paulgalaxy923 3 года назад

Amazing 👌

@TaeSunWoo 3 года назад

I was like “wait a min...Mandela effect??”

@pentaboss1351 3 года назад

I saw this video before, like half a year ago, so I was like whaaaat? 2 hours ago??

@scentlessapprentice88 3 года назад

I from Mars but don't tell anyone!

@biancabonet 3 года назад

I get those all the time 😅

@ATemplarIGuess 3 года назад

@@scentlessapprentice88 hello fellow alien i am a traveler from the planet pluto, i apologize for destroying your civilization

@dnasch 2 года назад

Thank you 😊

@fortty4finger 2 года назад

This channel rocks 👌🏻

@RandyJames22 3 года назад

I knew that there were stars with "Beta" in their name. Now I find out there's (maybe) a "VHS" star?? Sweet!

@AridChannelOfficialSG 3 года назад

Those stars with beta in its name are Bayer designations

@ViktorVonGhoulie 2 года назад

Love this

@relaxingblog 3 года назад

Very beautiful

@smreha 3 года назад

Thanks ☺️

@Foryal 2 года назад

Amazing

@im_giogaudet 3 года назад

Thank you

@TheReaverOfDarkness 2 года назад

Thumbnail: BIG PLANETS!! Content: small stars

@RedMorg 2 года назад

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?

@jordanbstone 2 года назад

Mind blowing.

@Rotation364 2 года назад

Nice!!!! 🔥

@vladskiobi 2 года назад

Jupiter: Wait, I'm smol now? Universe: Always have been.

@aryanandaleebazim823 3 года назад

@astrum, at 2:40 "the detection method could define the mass only, not their radius" do you mean the radii of the exoplanets only? Or that of their host neutron star as well?

@mybloodymemory 3 года назад

at 6:00, how did they determind the mass of that planet? gravitational lensing perhaps?

@kairon156 3 года назад

could the gas planet have formed from the star's dust somehow?

@frankhall424 3 года назад

Those in the pictures give out a lot of light . Considering these world's are reflecting light only , I would and at present , think they were not planets but stars . Either dwarf stars or like you say brown dwarfs . Just my opinion . Great channel . You have come a long way .

@sealard2279 2 года назад

These videos are really hard to watch on my phone in a dark room at night

@madcat789 3 года назад

3:05 I know where that footage is from, its from "How the Universe Works"!

@chasedaknight 2 года назад

Makes me wonder if planets can be pushed by the red giant phase. So cool

@nekotranslates 3 года назад

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.

@RedOctober_ 3 года назад

Hello I'm actually early this came out 5 minutes ago!

@matiaspinatzecchin3879 3 года назад

Could you make a video about Planet 9?

@anonymous-rb2sr 3 года назад

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

@techiescience474 3 года назад

Oh Man bigger star Mystery needs to be solved👍👍 🙌U have motivated ME & MOST to establish their youtube brand🙏😇

@BladeOfLight16 2 года назад

Title: PLANETS! Video: STARS! Me: WHY AM I BEING BLINDED?!

@josephfraser8914 3 года назад

now this is a fun question

@gspendlove 2 года назад

The universe is not only stranger than we imagine, it is stranger than we _can_ imagine.

@danciagar 3 года назад

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.