home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Chip 2004 November
/
Chip_2004-11_cd1.bin
/
zkuste
/
planetaria
/
download
/
celestia
/
celestia-win32-1.3.2.exe
/
{app}
/
data
/
comets.ssc
< prev
next >
Wrap
Text File
|
2004-08-13
|
2KB
|
85 lines
# Comets
"Halley" "Sol"
{
Class "comet"
Mesh "halley.cmod"
Texture "asteroid.jpg"
Radius 7.6 # maximum semi-axis
MeshCenter [ -0.338 1.303 0.230 ]
EllipticalOrbit
{
Epoch 2449400.5 #1994 Feb 17 00:00UT
Period 75.31589
SemiMajorAxis 17.834144
Eccentricity 0.967143
Inclination 162.262690
AscendingNode 58.420081
ArgOfPericenter 111.332485
MeanAnomaly 38.384264
}
# chaotic rotation, imperfectly defined:
# this version from "The New Solar System", 4th Edition; Eds.
# JK Beatty, CC Petersen, A Chaikin
RotationPeriod 170 # 7.1 day axial rotation period
Obliquity 66
PrecessionRate 97 # 3.7 day precession period
Albedo 0.04
}
"Borrelly" "Sol"
{
Class "comet"
Mesh "borrelly.cms"
Texture "asteroid.jpg"
Radius 2.2
InfoURL "http://www.solarviews.com/eng/borrelly.htm"
EllipticalOrbit
{
Epoch 2452174.5 # 2001 Sep 22 00:00UT
Period 6.86302
SemiMajorAxis 3.611363
Eccentricity 0.623908
Inclination 30.324612
AscendingNode 75.424869
ArgOfPericenter 353.375385
MeanAnomaly 358.956091
}
RotationPeriod 25
Obliquity 90
EquatorAscendingNode 315
Albedo 0.04
}
"Ikeya-Zhang" "Sol"
{
Class "comet"
Texture "asteroid.jpg"
Mesh "roughsphere.cms"
EllipticalOrbit
{
Epoch 2452352.47847 # 2002 Mar 18 23:29UT
Period 367.181906
SemiMajorAxis 51.276792
Eccentricity 0.990111
Inclination 28.1206
AscendingNode 93.3718
ArgOfPericenter 34.6666
MeanAnomaly 0
}
# These are all made up (copied from Halley)
Radius 7.5
RotationPeriod 170
Albedo 0.04
}