+Edouard Dubois Don't worry, Whilst KSP does neglect full n-body physics. Patched conics predictions (how KSP does orbits) are really used in actual human spaceflight. Depending on the mission ofcourse. So don't worry, although simplified, you're still learning real space sciences :)

+Edouard Dubois Don't feel too bad. We flew Apollo to the Moon on KSP-style one-body patched conic orbits, and Earth-Moon space is where multi-body physics matters more than anywhere in the Solar System. You actually learned real space science. You just haven't learned *all* of it. Also, I think the way KSP scales down all its bodies and distances but them makes them very dense so the gravity works means the multi-body corrections are bigger. In the real solar system, things don't wobble around nearly that much.

Eldritch Hmm. So we need Real-Scale Solar System + Principa *cracks whip Mod makers! Quickly, to work!

+Eldritch Oh man you made me feel way better, that time lapse at the end of the vid totally looked unrealistic and nearly destroyed my world view, if it was really like that then we'd surely have no moons around any body in our solar system...

As he said, it's because the patched conics visual lines were calculated *relative to Jool* and not *relative to the Jool-system's Barycenter*. In real life, if you viewed something like the Jupiter system with patched conics predictions relative to Jupiter itself, and not it's barycenter, you'd see similar wobbling (Just not has profuse).

+Anton Gromov Yep, non spherical gravity fields are possible in the RSS version.

+Anton Gromov Yeeeaah... My CPU is barely keeping up alreay.

My poor AMD FX6300 will die if that happens :P

+Anton Gromov I'm all in for Radiation pressure. let us make real solar sails!

+Scott Manley RSS version?

Yep, tylo kicks another moon around Duna (correct me if I got the wrong planet) out to deep space, and currently crashes the game :( luckily, that takes a "while" so not a major problem!

+Damien W I remember now, Jool not Duna

+Damien W That's pretty cool

YES

oh man, I want to see it happen! I will absolutely try

+PhazonSouffle I just learnt that KSP does not support multithreading. Sad times.

+Energy Core KSP supports multi threading, but the CPU use is dominated by Unity's physics engine which is single threaded.

Yeah, i've been reading up on the matter for the last half hour. It's really a shame because it kicks hardware scalability out of the game. I hear Unity uses PhysX, so maybe a GPU with a suitable architecture can accelerate the processing? I really hope the game will be able to handle huge couple thousand part ships at 60FPS in the future. Cheers.

The new version of unity is actually really good. I'm downloading it right now.

+PhazonSouffle that wouldn't help, as principia is nut currently multithreaded

+1 for astronaut saving

Rich Purnell manuever best manuever

Rich Prunell is a steely eyed missile man.

kOS does not run on ships that don't have current focus, so no it can't handle background n body stationkeeping.

haha martian reference go brrrt

+Giannis Pantazis Honestly I just shoot into the vicinity of the moon and hope fore a capture.

Scott Manley Welp, if you can't do it, there's no way I will. Besides, attempting to ise this on my coal-powered PC would probably make a bigger explosion than the N-1 disaster.

+Scott Manley Where can Ilearn to play ksp like an actual scientist?

+Scott Manley Would an Aldrin Cycler be possible with this mod?

+Johiah plays games from scott manley....

+TheNerd484 Yeah I think thats a great idea, please make a video where you deorbit Gilly.

Totally!!

***** Well, the math is not nice if you want to do this without cheating.

+James Heineman but that was without principia, and he didnt say it was impossible, per say, just near-impossible. it would take insane ammounts of fuel and etc. but with principia it might be, if u have some cheats on maybe.

hm.... deorbit a multi kilometer wide asteroid into a unsuspecting planet? SURE! unfortunately if hyperedit is to be believed the two bodies would just faze through each other :/

+SkulShurtugalTCG Well, he did mention it ;)

+clamchowder138 ...along with a lot of other KZfaq commenters.

You couldn't enjoy getting to Mun with less than 800 m/s of delta-v

+OtakuMage dont you mean: oh god, n-body physics!

Azivegu no, I mean "yay, n-body physics and working Lagrange Points! Now I can set up my replica of Sides 1-5 and re-enact the One Year War in KSP!"

+pseudocoder78 Well, more properly than some sort of arbitrary SoI system.

+pseudocoder78 at least it's better than kepler

No, but Newton would approve. In some way, though, if he was aware of KSP, that would mean, he also knows about Einstein and relativity, hell, he would happily learn about QED, string theory or quantum mechanics too!

Hows that engineering going

+FLY Yeah, just doing a simulation in KSP isn't exactly accurate.

+FLY X Especially when you think about all the gravity assists they're building into the transfer orbits.

+Platinumcoated "...and besides - It Works In Kerbal Space Program!"

I mean, you can calculate it on your laptop with GMAT... most of the math isn't actually difficult. It just depends on how detailed you want to be and how accurate you want to be. If you play real solar system with principia you can actually use GMAT to plan your missions. It's pretty cool.

I mean, we sent man to the moon with less computing power than some kitchen appliances have nowadays.

+lyianx If they feel inadequate, they are already connected to the internet which is near infinite knowledge. Why not delve into some astro physics?

+Xaios L1, L2, and L3 points are "painful" as they require active stationkeeping. L4 and L5 (the "Trojan" points) though are stable. That's why Jupiter has a collection of asteroids in both of it's L4 and L5 points with the Sun.

Cool! I wonder will NASA look at your papers and use them?

+Io That would be really cool, but isn't the main concern the high radiation that astronauts have to deal with? I think it's a little higher than the ISS plus however long they stay on Mars.

Io I didn't get a chance to publish unfortunately, left my masters and went straight into a PhD in a different subject.

gajbooks totally correct, my thesis presented it as an option for supply missions or science missions where flight time is less of a factor. No good for human space flight.

+Io Getting there is one of the most dangerous part. (Great landing is a requirement, good will leave you stranded ) You want to get there as fast as possible while keeping cost down. Double the flight time seriously impacts the risk of life-support failure or a CME from our thermonuclear fun ball cooking them alive. Sorry, somehow turned this into a meat sack lead endeavor.

+Itthumyir You could almost say...he's bringing you right back down to earth ( ͡° ͜ʖ ͡°)

+Tom Meakin slow clap

+Itthumyir Every time I look at the comment section, I realize compared to your average Joe, I'm intelligent .

+Thomas PlaysTheGames My name's not Joe Checkmate

+Nolansykinsley visit could be placing a sattelite

+Danish Raven I have a feeling that they won't exactly be stable, satellites will not like to stay in place, most l points are only stable on one axis.

+Gorgan184 Celestial bodies are still fixed on rails. This mod just makes it so that their respective gravities all affect your craft, insteasd of the current SoI affecting your craft. I'd be interested to see if this mod affects ALL crafts, not just your active one. (Of course, if you make a moon out of parts.... :3)

+Gorgan184 All bodies are welded onto rails sadly, thou mods may help.

+Mach n' Grace 12:14 doesn't look like rails to me.

Trioct "Mods may help"

LazyLife IFreak Luckily, I wasn't replying to you. ;)

+Grim187 Yea please

+Dr_Somgosomgo That’s what this does. None of those bodies are on rails.

+Nicholas Escalona I think you misunderstood my meaning of "derailing". I'm talking about derailing that allows de-orbiting Minmus or Gilly with a big enough rocket.

@@Somgosomgo Yes, you can do that with this mod.....

Realistically Tylo would definately destroy the system. Most likely the innermost moon (forgot names cuz im a noob) will eventually be tugged out to intersect the second or third, similar to how mercury is going to hit either venus or earth in 3 billion years (tugs from venus and jupiter will increase eccentricity)

Gilly

Keyon Rosen yes, gilly. i would be a touch harder

+FLY X that should be in stock KSP for sure. it's odd that you can orbit just fine 1 m above the atmosphere and have a decay orbit 1 m below.

yeah, and as this video shows, it is possible to get around the 'on rails' orbiting system when you don't have the craft selected.

Only if there's also a mod to allow it to boost itself. Managing the extra delta V and planning out an engine to do that sounds cool but micro-managing who knows how many spacecraft you have up there sounds terribly tedious.

you could have it so only crafts over a certain part count are effected by it. and you could have an option to change the max part count before the mod/feature is effective.

+zelodec Well, I'm sure my CPU is happy that there is a clear limit cap the physics / aerodynamics bubble. Above the atmosphere KSP calculates a 'rail', a fixed parabola where the position of your ships have only one variable, namely the speed along the rail. This makes it possible to significantly increase time acceleration, as the position of your craft becomes a 'simple' equation. In the atmosphere both aerodynamic, heating and structural calculations are performed. To my knowledge, physics acceleration is achieved by increasing the delta between the next iteration of calculation. This can cause slightly unstable situations (like the internal forces of your ship) to become unstable within a few calculation steps, exploding your ship.

+Dominique-Antoine Rossi (domirossi) this comment accually made me laugh pretty hard :D

+TAPE Gaming are you predicting the orbits or just doing it all real time.

xFIRSTx I'm calculating the orbit every frame

+Joachim Voldseth You're right I think, cause looking at that time lapse of Jool, after playing the game for 1 or 2 kerbal years i think most, if not all, of those moons would not be orbiting Jool.

Plus, the cpu savings.