Are the Planets in KSP Too Small?

[@curious_ksp_]

Correction to the equation referred to at 2:55 The equation shows: R^3 = 3M_tot/4pi rho_core * ((1-x)/rho_mantle + x/rho_core) But it should be: R^3 = 3M_tot/4pi * ((1-x)/rho_mantle + x/rho_core) The extra rho_core outside the brackets should not be there (makes sense, otherwise the units wouldn't be right).

[@eekee6034]

Incidentally, Juno:New Origins home planet, Droo, is about double the radius of Kerbin. I wonder if its developers did math like this. Its star is also interesting, being a hypothetical type which may exist in the future: a blue dwarf.

[@saimGX]

It's always interesting when I travel to Jool and marvel at its size when it's really the size of Earth irl. Jupiter seems scary big in comparison. Also, I'd love to see the behind the scenes of you posing for these green screen stills throughout the video lol

[@curious_ksp_]

Yeah, space and everything is scary big. Half the reason I play stock kerbol system loll. I did one "session" of doing a few poses and now I can use those for all videos, not too spectacular haha.

[@Flesh_Wizard]

You know how you can see clouds on the ISS livestream? Imagine the same clouds, but different colours, with hundreds of times more planetary mass to work with. That's Jupiter

[@patrykmachowski97]

Marvel?! Did they update the game

[@MDE_never_dies]

It’s smaller than Earth

[@fRiX15]

WOOOHOOOO!!! HE'S BACK BABYYY

[@siz1700]

My mind exploded when I found out that Jool is only slightly smaller than Earth

[@stevbe1723]

Great stuff, this is the kind of itch that early game theory used to scratch for me Looking forward to more awesome content

[@curious_ksp_]

Thank you so much!

[@MightySpaceman]

but that's just a theory...

[@CultReport]

@@MightySpaceman homosexual

[@MightySpaceman]

@@CultReport huh

[@IOtheFifth]

Couldn't the extreme gravitational pull be explained by the gravitational constant being different in the Kerbal universe?

[@curious_ksp_]

Using some equations relating to orbital mechanics, you can determine the gravitational constant. It turns out to be the same as in out universe.

[@zuthalsoraniz6764]

@@curious_ksp_ Well, looking at how orbits around a body behave only gives you the product GM, not G itself - in fact, GM is generally known to a higher precision than just the mass of celestial bodies IRL, because G is very uncertain compared to other fundamental constants. So a higher value of G absolutely would compensate for a lower mass of the bodies.

[@Rodhern]

I am so happy to be in a comment section with players that understand this issue. At one point a KSP version was released that changed the gravity at Kerbin, and some players noticed that their Kerbin satellite orbits had changed. I replied to the forum that the Kerbin sea-level gravity (and its change) was responsible. The thing is, in the Kerbal universe there is not per say a universal gravitational constant (often called G). When you are in (e.g.) the Kerbin sphere of influence, gravity is determined by a reference distance (Kerbin sea-level at 600km from its centre) and a reference gravity acceleration (Kerbin sea-level g0 = 9.82m/s^2). That is, the gravity is as you would expect from a point mass at the centre of the planet, and is, of course, relative to the celestial body (it also implies that when you orbit Kerbin you indirectly orbit the 'sun' as well). At least that is how I choose to interpret the Kerbal universe when I play. Or you may express gravity in way of parameter GM as zuthalsoraniz6764 do in their excellent reply; in my mind GM is tersely parametrised sea-level gravity (given that you know the reference sea-level, or just don't care, as when doing pure orbital mechanics calculations). A fairly large number of players really like creating spread sheets and formulas, and in particular they like to model the Kerbal universe with a "G"-constant. So as a service to those players, the planets are fitted with a derived mass based on the "G" known from real life. That way everybody is happy. Or, well, boy did some of the players get offended that I didn't have a universal "G" in my model of the Kerbal universe.

[@rosimatnik]

Yay, new video

[@curious_ksp_]

Woop Woop!

[@JacobBite]

If you've been in low orbit with a mod that increases planet size you'll know the answer is yes

[@SG_AvgeekRailfanner]

HÉ IS BACK

[@curious_ksp_]

I try, got any ideas for videos?

[@MDE_never_dies]

The planets and moons in KSP have cores made of Kerbium, an extremely dense element.

[@MikinessAnalog]

1:40 "eye-run"

[@giovannibini6809]

Every celestial body in KSP is 10 times smaller and 10 times denser than they should.

[@tricky2917]

Still takes four hours to drive to the north pole of Kerbin.

[@MDE_never_dies]

That’s quick

[@Messier42-handle]

@@MDE_never_dies not when you have to hold your finger on a key for that long

[@MDE_never_dies]

@@Messier42-handle Poor baby

[@marsguy2200]

WE ARE SO BACK!!!!

[@matthewe3813]

Im gonna colonize you. Just you wait

[@caimanaraujo479]

I was looking fora a new video from you yesterday! Thats great timing =) Hello from Brazil!

[@purple96yt16]

Great work man! Glad to see youre back

[@curious_ksp_]

The one who has been here from the beginning! Thank you for all your support!

[@purple96yt16]

@@curious_ksp_ No problem man!

[@nate_bombd3011]

you should do a video on how some features on planets look exactly like ones on earth, like the very African looking contient on kerbin and the gulf of mexico looking thing on dres

[@nicefloweytheoverseer7632]

Fun fact: Kerbin is the exact same as an old libnoise stock planet.

[@duckface81]

yes, thats why i play on 10x rescale

[@FutureAIDev2015]

That's why I loved the 64K mod so much!!

[@bingusbongus9807]

what is the 64k mod (i looked it up and i cant figure it out(i only tried to work it out for 3 minutes because i only care a little bit))

[@arieldario3849]

3:52 That's actually very similar sizes to what JNSQ mod offers, a mod that make the entire system and bodies ~2.7x bigger than in the stock game... New sub BTW!

[@sobakabaskersanya5619]

the legend is back

[@GenericGamerDude]

YES HES BACK

[@oliwierkwiatkowski8817]

The return of the legend!

[@KickCaesar]

YEAHH!! Awesome to see another video!!

[@quoniam426]

The size you envision with your calculus is closer to what some mods like JNSQ are about.

[@Sunflower96163]

HE IS BACK!!!! LETS GO!

[@bristleconepine4120]

Hi! I just discovered your channel. I, personally, have never liked jacking up the densities of the planets in the Kerbal universe. I would have changed the universal gravitational constant instead.

[@nyctonihilanth]

man i suck at math but watching your videos are so entertaining I love this shit keep it up man

[@wolfcraft484]

stratzenblitz actually found out that all the bodies in KSP have singularities inside them via nocliping vehicles under the ground so, how would having black holes as cores change things

[@Magi..]

i always imagine that the KSP universe formed in a different way, like the higgs boson had more of an effect on matter to make everything denser

[@curious_ksp_]

Of course it has to be different in some way, but i try to apply real physics to create some understanding about things surrounding our own universe

[@Magi..]

@@curious_ksp_ And that's awesome, keep it up

[@KingdomOfSaulo]

oh yeah he's alive

[@redshot9616]

YEAH HE'S BACK

[@SALTrobot]

The return!

[@debott4538]

The answer is yes. Absolutley. Ever since trying out bigger sized Kerbin, i've grown to despise the regular one. Bigger planets are just so much cooler.

[@LimeJuice0308]

THE RETURN 🗣️🗣️🗣️

[@HeitorSFS]

Oooohhhh yeeeaaahhhhh babyyyy!!!! Hess bacckkkkk!!!!

[@guillermoramosjimenez9690]

Whats the gravity formula in the kerbin universe

[@petersmythe6462]

It could just be a higher gravitational constant.

[@yellod1382]

finally awaken from deep slumber

[@WellSwolen69]

Just learning about this game Does KSP2 use realistic mass? KSP2 is known for broken physics, and I could see the engine heavily reworked if this is the case

[@Hixxgammerxxgammer]

Like the first thumbnail

[@curious_ksp_]

I like this one more because it is easier to read than the other one. Edit: so please forgive me🙂

[@Hixxgammerxxgammer]

Ok

[@Hebesphenomegacorona]

Interestingly, Jool is about the same size as real life earth

[@cmilkau]

TL;DW: yes.

[@deltacx1059]

Yup these planets are made out of one of the elements on the theoretical island of stability.

[@thatdirtybubble]

i need a kerbalina

[@illesizs]

I'm pretty sure, the planets are hollow, with a black hole in the middle of each of them. If you clip through the surface, you'll fall to the center and explode.

[@MixelFan95]

I wonder what scale Kerbals are compared to Humans?

[@GreenBlueWalkthrough]

Huh I wonder why in KSP 2 atleast the "new sizes" are not used in the stock game? Like it would be more acrate, fix that air density bug KSP 2 had for the longest time and really would not effect gameplay to much if it did just add more fuel and thrust.

[@eekee6034]

Juno:New Origins home planet, Droo, is about double the radius of Kerbin, suggesting that maybe its developers did math like this. It's a harder game than KSP, perhaps partly due to this. It's easy to make simple rockets with the scalable parts, but not big complex ships.

[@Mr.Bonuts]

Personally I think the size is purely gameplay and in universe the planets a realistically scaled.

[@unorthodoxpickle7014]

Kerbol and Jool should be bigger because Kerbol is a star and Jool is a gas giant so necessarily they have to have bigger radiis 🤔

[@Jeremy.Klakson]

¡hê ïś bäçķ!

[@weedcaptain4941]

Me watching this video acting like i understand what math hes doing

[@curious_ksp_]

You have seen nothing yet, next video is going to be even more math!

[@Memorial.aviation]

Is a Game from Android?

[@oberonpanopticon]

Yes, yes they are. Unless they have black holes at their cores.

[@curious_ksp_]

New video? How big would the black holes be if this was true? How long would it take to consume the planets?

[@mattevans4377]

What about neutron stars instead? Then we don't have to deal with the destruction of the planets.

[@Nails077]

Too small for realism but just the right size for gameplay reasons. Smaller sizes simplifies things.

[@JYF921]

yes i agree

[@notjebbutstillakerbal]

It's for player convince

[@AmnycritunisV3Alternativ-mi8nc]

*< this user has left the server due to too much knowledges

[@o80y1]

They’re average and have a great personality

[@curious_ksp_]

Or just small Kings

[@beaverbuoy3011]

WHAAAAAAAAAA

[@Somaa-h9n]

me with sfs easy mode :/

[@NyZandry]

Smul buj

[@auhsoj308]

this is great! I also make science videos. Want to see them?

[@BESG_And_North_America]

I’m the peep

[@phailupe2941]

Yippee

[@stickmann7363]

they're at least average size smh 🙄🙄🙄

[@OnaRocketship]

Intentional

[@Toastedguyig]

I mean looks pretty average to me

[@LeonelEBD]

And... Thats ehy JNSQ exists hahahaha

[@Aiden_onroblox]

𝙸 𝚝𝚑𝚒𝚗𝚔

[@f.u.m.o.5669]

I think they're average sized....