*Sedna* Possible planitoid to be added to KSP???

[xxvenumusxx]

Many of you might know and many of you might not know about this planetary body at the brim of our Solar System but I would love to see it added to a future version of KSP

Brief explanation of Sedna: it was discovered on November 14th, 2003 "as you see below." and has a VERY elliptical orbit "Link below shows its relative orbit path" and being largely a mixture of water, methane and nitrogen ices with tholins. it is classified as a Dwarf Planet, slightly smaller then our moon, and has an orbit period of around 11,500 years.

http://upload.wikimedia.org/wikipedia/commons/thumb/e/e3/Sedna_orbit.svg/600px-Sedna_orbit.svg.png

Discovered by

Michael E. Brown,

C. Trujillo,

D. Rabinowitz

Discovery date November 14, 2003

-Designations-

MPC designation 90377 Sedna

Pronunciation /ˈsɛdnə/ SED-nə

Alternative names 2003 VB12

Minor planet category trans-Neptunian object detached object Oort cloud object

-Orbital characteristics-

Epoch 2010-Jul-23 (JD 2455400.5)

Aphelion 937 AU (Q)[3]

1.402×1014 m

140.2 Tm

0.0148 ly

Perihelion

76.361 AU (q)

1.142 3×1013 m

11.423 Tm

Semi-major axis

518.57 AU (a)

7.757 6×1013 m

77.576 Tm

Eccentricity 0.8527

Orbital period ≈11,400 yr[3][a]

Average orbital speed 1.04 km/s

Mean anomaly 358.01°

Inclination 11.927°

Longitude of ascending node 144.26°

Argument of perihelion 311.02°

-Physical characteristics-

Dimensions 995 ± 80 km^6

Mass ≈1 × 1021 kg^b

Equatorial surface gravity ≈0.27 m/s2

Escape velocity ≈0.518 km/s

Sidereal rotation period 0.42 d (10 h)^4^7

Albedo 0.32 ± 0.06^6

Temperature ≈12 K

Spectral type

(red) B−V=1.24;

V−R=0.78[8]

parent magnitude

21.1^9

20.5 (perihelic)^10

Absolute magnitude (H) 1.83 ± 0.05^6

Comment below or submit to the poll *that is if I do it right* if you would like to see a celestial body like this added to a future version of KSP!!!!!!!!!!!!!

I owe all credentials and information to this site. http://en.wikipedia.org/wiki/90377_Sedna "Pshhhhhhhh so I got the information from Wikipedia so what..." lol

[Kerbface]

Sedna is a lot smaller than our moon...

Anyway, I have suggested before that a planet like Sedna, like with that bizzare orbit, be added to the game, but I think you should know better than to suggest the actual planet itself, this isn't our Solar system.

[xxvenumusxx]

"Sedna is a lot smaller than our moon..."

Didn't I state that. also Duna and Jool are based off of Mars and Jupiter all ideas have to start some were, so its reasonable to say that the first source of ideas should come from our own system. Im not saying "THIS IS THE PLANET I WANT AND THATS FINAL." im just making suggestions. and im not very active on the forums as you can see,and I wasn't to sure if someone had made a suggestion like this or not so I thought I would. (=

[xxvenumusxx]

Sorry, I thought I put "Sedna is a lot smaller than our moon..." somewhere in there but it looks like I forgot that. XD

[Kerbface]

Sorry, I thought I put "Sedna is a lot smaller than our moon..." somewhere in there but it looks like I forgot that. XD

Yeah, you said it is slightly smaller than our moon.

[xxvenumusxx]

"it is classified as a Dwarf Planet, slightly smaller then our moon"

Yeah there it is I must be blind or something XD

[ouion]

it probably take a long time to get to the planet in time and you need to carry alot of fuel.

[Hofugir]

Back when i was working on adding planets of my own, i initally made a pluto/sedna analog 138bm out, took a hell of a time to get there but was fun.

[Motokid600]

Id rather see a Saturn, Uranus, Neptune analog added in first, but yea I do agree. Comets too.

[SunJumper]

Landing on a Sedna Analogue would require only a small amount of extra delta-v compared with Eeloo, assuming they are of similar size. It would just take longer. I just hope they compensate with lots of easter eggs/cool stuff...

[Flixxbeatz]

Could be, but its orbit means limited time frame and missions that you have only one chance per save and it will depend how close it is to its Periapsis once you've started a new save. In short, you will only have a single window for an encounter per game*.

You don't want to waste that by just sending a simple unmanned probe/lander assembly, right? So you then start building your massive interplanetary ship for this one-off encounter. But if you miscalculated and saw that the body was still a couple of thousand years away, are you willing to timewarp (given that it would still take a couple of hours at maximum warp**) until a transfer window arrives?

If you don't care about not launching a space vehicle or a new mission for a few in-game millenia, METs of your active missions getting stamped with T+9999 (even your "Sedna" ship will get it if it's already built) and leaving a kerbal inside a ship in orbit for more than a thousand years*** (TL;DR: throwing your space program out of whack) then that would be fine for you to warp-it-up.

*unless the warpmatics option is used.

**current (0.20) timewarp scaling.

***assuming that life support isn't implemented yet in-game, and the kerbals still rely on "photosynthesis" by the time a planetoid with "that" orbit gets introduced.

Edited July 21, 2013 by Flixxbeatz

[Kerbface]

I don't think it would be necessary to have it really as stretched as Sedna's orbit. But something with a similarly shaped one, just a lot smaller, could be interesting. A person would still have to wait, say, 100 years for the next orbit to come around.

[magnemoe]

it probably take a long time to get to the planet in time and you need to carry alot of fuel.

Not much more than Eeloo, however it takes an long time getting where.

[SunJumper]

Could be, but its orbit means limited time frame and missions that you have only one chance per save and it will depend how close it is to its Periapsis once you've started a new save. In short, you will only have a single window for an encounter per game*.

You don't want to waste that by just sending a simple unmanned probe/lander assembly, right? So you then start building your massive interplanetary ship for this one-off encounter. But if you miscalculated and saw that the body was still a couple of thousand years away, are you willing to timewarp (given that it would still take a couple of hours at maximum warp**) until a transfer window arrives?

If you don't care about not launching a space vehicle or a new mission for a few in-game millenia, METs of your active missions getting stamped with T+9999 (even your "Sedna" ship will get it if it's already built) and leaving a kerbal inside a ship in orbit for more than a thousand years*** (TL;DR: throwing your space program out of whack) then that would be fine for you to warp-it-up.

*unless the warpmatics option is used.

**current (0.20) timewarp scaling.

***assuming that life support isn't implemented yet in-game, and the kerbals still rely on "photosynthesis" by the time a planetoid with "that" orbit gets introduced.

For a body that far out, the synodic period would actually be very close to Kerbin's year. The long part would be the actual transfer, not waiting for a window. Assuming you don't mind going for it at apoapsis.

[Boex]

Not with only x100 000 timewarp...But if they figure out how to fix the inaccuracies and floating point numbers and add further time acceleration, then I'd love to see something like this in the game.

[Joshington]

It would probably have to be a very interesting planet for anyone to bother visiting it, besides for bragging rights of course. Maybe a very large underground cave system.