Orbits of moons of Saturn :(

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billybob884
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Post #21by billybob884 » 10.12.2002, 03:28

granthutchison wrote:So these numbers need to be added to the Horizons ascending node to give a correct Celestia ascending node. They are calculated for the J2000.0 pole position, and given to a perhaps-spurious six decimal places.

Mars -40.863031 degrees
Jupiter 20.453422 degrees
Saturn -39.977646 degrees
Uranus 5.013392 degrees (IAU north pole)
Uranus -5.013392 degrees (Celestia north pole)
Neptune -24.527368 degrees
Pluto -17.515689 degrees (IAU north pole)
Pluto 17.515689 degrees (Celestia north pole)


i just want to make sure i'm doing this right, so for example, you'd take mars (preset) at 49.479, add -40.863031 to get 8.615969? just want to check before i screw up. :wink:
Mike M.

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granthutchison
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Post #22by granthutchison » 10.12.2002, 03:48

billybob884 wrote:i just want to make sure i'm doing this right, so for example, you'd take mars (preset) at 49.479, add -40.863031 to get 8.615969? just want to check before i screw up. :wink:

STOP! :wink:
These corrections only apply to satellite orbital data downloaded from JPL's Horizons ephemeris service - if you asked them for, say, the orbit of Phobos at such-and-such a date, you'd need to correct the ascending node they sent you for Phobos by the amount I've given.
They don't apply to the planets themselves as listed in solarsys.ssc.

Grant

billybob884
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Post #23by billybob884 » 10.12.2002, 03:59

oooooooohhh, oops :oops: i think i made a boo boo. oh well, i can fix it.
Mike M.



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