The Realism of Yavin 4 from Star Wars
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- Опубліковано 29 чер 2024
- In this video, I analyze the world of Yavin 4 from Star Wars: Episode IV-A New Hope to determine how realistic it actually is. Is it a moon of a gas giant, or something else entirely?
You asked for it, so here it is; the world of Yavin 4 and its surrounding systems, from the Star Wars universe. For the Star Wars purists out there, this video contains non-canon "Legends" information only where it does not conflict with the official canon.
00:00 - Introduction To Yavin 4
03:08 - Additional Planets in The System
04:53 - Additional Habitable Moons Around Yavin 4
07:20 - Anomaly: A Large Gas Giant
10:40 - Anomaly: A Dark Planet
11:44 - Conclusion
#starwars - Наука та технологія
I think my favorite feature of Yavin IV is the size of Yavin in the sky. It absolutely dominates the view. This got me thinking: is this possible, or is Yavin 4 in the Roche Limit.
If I ran the numbers correctly, using Yavin's canonical size and the distance you calculated, Yavin would have an angular diameter of about 12.65 degrees, making it 25 times larger than the sun in Earth's sky. So it should take up about a tenth of the sky.
As for the Roche limit, that's a bit beyond me - at least for the time I have today.
@@AlienPlanetology I kind of wondered why it isn't in the video - makes sense if it's not a problem. Thanks for the check on that!
@@AlienPlanetology Wouldn't be able to without the numbers in the vid! Keep up the great content. I really like how, instead of just doing what a lot of channels do and point out how one thing or another is wrong, you actually consider how what's presented in the material could be possible, or try to come up with ways to make it work with the science. Makes the videos way more interesting and educational!
Bro, how am I only now finding this channel??? Planetary systems and the Science behind them is literally my favorite part of Science fiction, and has been such for years. Great work! This channel definitely deserves more attention
I believe that in the Star Wars universe, they actually number moons by mass instead of by distance.
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Enjoyed. The planetary art was great. ☺
I do think it´s interesting just how many sentient species there are in the star wars galaxy. Sometimes multiple per planetary system. Not just these three, but there is also Ord Plutonia (the icy world home to the Talz) and it´s much more habitable moon, Pantora (home to the Pantorans), which considering that Ord Plutonia is a rocky world, makes it unlikely for it to have such a large, life bearing moon.
It's good to see the brown dwarf hypothesis explored. On the subject of what I hope is the next video (Andor/Andoria, the habitable moon I have a hard-on for because of the comparative realism), in the classic TOS episode "And The Children Shall Lead", they go to Epsilon Indi to what is stated to be the main Earth-like planet controlled by the Andorians. Then in the TNG episodes "The Naked Now" and "The Child", this is one of the places Wesley was trained. All books and references prior to Enterprise consistently place Andor/Andoria as either the fifth or eighth planet in that system. Then the imbeciles at Enterprise and STD came along and stuck it over in the gas giant-ejecting Procyon as the furthest out (which is entirely too far away from Vulcan for their sub-light forever war before discovering warp). Anyway, this leads to the notion that the gas giant wouldn't be a blue ice giant as it would be too far out from the habitable zone for surface life. Instead, it could be more realistically one of the brown dwarves that are on the far end of Epsilon Indi. There's a complaint you can write in. :)
I would like to visit and claim the temples as my own... I hear there was a fallen Jedi buried there...
How come I haven't found this channel until today?
what is the situation with thermal radiation given off by a brown dwarf in regards to having a habitable moon orbiting it? For example, even jupiter, which isnt so massive gives off radiation from its magnetic field, so much so, that surface life is impossible as we know it on its 4 galilean moons..So whats the deal with radiation in this case?
not really a star wars fan, i just wath for the planet stuff (geology, paleontology, biology andastrobiology lover), but I was wondering why Yavin has such small seas.
Can you please do Tatooine next? I'd love to know how scientifically accurate it is!
Hello, so this is a question only somewhat related to the video.
I’ve been working on a multipart hard sci fi book series for a few years. The possible discovery of candidate 1 in the Alpha Centauri system lead me to locate an alien homeworld there. More specifically it caused me to devise an ice giant paired with a large moon.
Now from what I’ve read, ice giants and gas giants are more likely to host small moons, and with this fictional moon being around 0.77 earth masses and 0.97 earth radius with about the same density of 5.5 grams per cubic inch I think I might have messed up the math somewhere for both realism, and for the Roche limit.
For context this moon orbits an ice giant around 32 earth masses, making it a large ice giant, and it would have a fairly high density.
I don’t want the two to be tidally locked, because of the tidal heating forces that would occur, but I do want the moon to have an axial tilt which leaves the northern hemisphere seeing the ice giant while the south wouldn’t have the same direct view of it. Would this cause the north to be warmer, or colder?
And how far out could it realistically orbit to avoid breaking apart? Is this pairing totally unrealistic? And based on the data for candidate 1, is this an entirely impossible configuration to fit the available data?
If it is, in your opinion could other plausibly habitable worlds be hidden around Alpha Centauri A?
Lots of questions sorry, but it’s a host of questions I’ve been pondering for a while.
Loving your videos though, keep it up man!
@@AlienPlanetology Maybe if I explained the reasons for my choices you'd be able to help direct me in a new direction. Your answer was not only helpful but also eye opening to how much I've been getting wrong.
I have some questions but I should explain my reasoning behind my previous decisions.
So I wanted to use the Alpha Centauri system for two purposes, one being proximity (Because even at 15%c it will still take 29 years to get there), and the other being the unique seasonal and lighting effects from the two stars. A big aspect of the ecosystem on this world is how it has adapted to extreme variations in the seasonal lighting conditions, the plants even adapt to lighting conditions over the course of a single day. The mechanism is similar to a colonial organism with many strains of photosynthesizing bacteria living within non-photosynthetic plants which provide them a medium to live in and a sort of immune system to keep them safe as they focus on photosynthesizing. Because of this the biology of the planet and the ecosystem as a whole is very dependent on some sort of conditions that cause varying light levels and different wavelengths from at least two classes of nearby star.
I was not considering the frost line when deciding on an ice giant. Part of why I decided this was due to the absolutely enormous size of gas giants.
Another reason why I decided on it was because the civilization which inhabits the moon has had an easier time of moving around their solar system due to the body they orbit. They could use slingshot maneuvers to save on fuel and get out to other bodies in the system. By the time of the book that introduces them they represent a threat to humanity simply because they have advanced slightly further. They use orbiting tethers and mass drivers to scoop up helium and hydrogen from the ice giant to help fuel their fusion economy, and given their proximity this has lead to a stronger space infrastructure base. I chose an ice giant not only due to the lower gravity well making it a better candidate for this sort of infrastructure, but also due to the potentially higher amounts of helium present in ice giants.
My head cannon for the formation of this giant and moon pair involved an ice giant forming in the outer edges around Rigil Kentaurus and Toliman, then on a cycle when Proxima orbited closer to the other stars a rocky body was stolen out of its orbit and eventually impacted the ice giant. This impact resulted in the moon gaining extra gases and liquids it would later need, as well as heat to increase its tectonic activity.
As for the northern hemisphere aspect I wanted this feature because I wanted the northern hemisphere to receive the light of the ice giant year round, not necessarily for heat purposes but primarily for atmosphere and a more complex photosynthesis schedule. I was picturing two scenarios; one where the moon has a very very slow rotation, nearly tidally locked, like in the figure of one year to rotate on it's own axis with the day cycle determine by the rotation of the ice giant. In the other scenario I imagined a fully tidally locked moon, but the tilt of the ice giant leads to the "northern" hemisphere which receives more light during the pairs rotation around Rigil forming on the side facing mostly toward the ice giant, and the colder "southern" hemisphere facing outward and receiving less heat. I'm pretty sure this isn't totally possible or would at least take very complex and unlikely orbits. But I suppose there could be alternatives.
If you've read this far already I super appreciate it, and if you dont mind I then have some questions. If I want to keep things somewhat accurate and possible I definitely have to trim the fat on this planet/moon.
So firstly, keeping in mind the desire to have a system reachable within an only moderately extended human lifespan (like not much longer, but in peak physical condition even into your 70's), is there a better candidate system you could suggest? I quite like the G class star to keep things somewhat familiar but what other nearby systems stand out to you?
Or if I do stick with the alpha centauri system for the triple sun mechanics what sort of possibilities could I have to place a planet within it? I'm not as attached to having the planet be a moon as I am attached to the idea of three suns, but if there was a believable way to keep both I wouldnt be opposed to hearing it.
If I do away with the ice giant/gas giant idea then what other system feature could really help out a civilization making infrastructure in space? I mean our own moon is a pretty great boon but I dont want to make an alien world feel too familiar.
For the northern hemisphere aspect I wanted to have a source of continuous light without the drawbacks of tidally locking to a star, I thought a nice brightness level was achievable by orbiting an ice giant, and I further wanted that light source fixed on a region of the planet which was warmer anyhow, leading to a sort of "Blessed" feeling to the inhabitants of the supercontinent in the continuous light. I still wanted seasonal temperature variations, but the world does have a supercontinent which is meant to more or less have good growing conditions year round.
If the planet did orbit an ice giant how would I calculate the size it would appear in the sky? By my best guess it would have to be several times the size of the moon in our sky.
A major question I have is whether it would be more realistic for the moon to orbit another rocky body with decent albedo? I assume in this case the pair is slightly more survivable but probably still unlikely.
Finally I am curious about your skepticism around planets in Alpha Centauri. What sort of planets are the most likely? Is it at all possible for planets to be hiding in the system? And if they are totally unlikely then what could improve their odds? At one point I considered giving the pair a very high degree of orbital inclination to avoid some of the gravitational issues, but couldnt figure out if that would actually increase the odds of the pair sticking around. I thought maybe the inclination could be a result of the collision that formed the pair. Additionally I should add that another reason I picked the Alpha Centauri system was because of how difficult it could be to detect planets in orbit, thus making such a near yet undiscovered world seem a tiny bit more believable.
Thank you for reading all this! Any answers are appreciated but if this was too many questions I totally understand! Huge fan of your channel though, looking forward to seeing it keep going!
One niche none of the other channels that discuss hard science fiction topics have really touched on was planetary science and I cant wait to see where your channel branches out to.
Awesome video!
You know; I was wandering; is LV-426 similar to one of the planets and celestial bodies in our solar system.
if Yavin prime orbits an K type star, shouldn't plants on Yavin 4 be red, orange or blue? (I don't know if a brown dwarf can emit light enough to realize photosynthesis)
never clicked so fast
what is the mass of the parent planet of yavin 4 or just call it yavin prime. Please tell the mass.
The Masasii are the warrior caste of the sith species
excuse me uh i want to know how can you determine the size of the core of yavin 4? is there some sort of equation for it? i know that you seeing this comment is unlikely so if there is anyone out there that knows please reply
Maybe it was a Type K Orange giant rather than a main sequence star, that would make the star bright enough to illuminate Yavin, don't you think?
Though, Yavin (The Star) is stated to be a K-Type Main-Sequence Star, not a K-Type Orange Giant, if it was, both Yavin 4 and the other Worlds orbiting Yavin Prime would not be habitable if they where around a K-Type Giant
@@titan-1802 In Episode VII The Force Awakens, they turned a planet (Starkiller Base) into a star anyway, that tells me that the Star Wars writers are fairly ignorant about astronomy and they don't know that in general, unless were talking about white dwarfs, stars tend to be much larger than planets. I don't think Starkiller base would have been turned into a white dwarf.
I really hate episodes VII, VIII, and IX, they really talk down to you and assume you don't know some basic facts about astronomy. I really don't know how the physics of the Star Wars sequel trilogy is suppose to work. How does a planet drain a star of its energy anyway, and what happens to the star if it does? How would you contain such energy in a planet?
@@thomaskalbfus2005 basically we can blame Disney for basically getting most things wrong *especially on Endor...*
ya new video
i vote fot tatooine