Stellarium (0.11.0) & C/2009 P1 (Garradd)

[OICURMT]

Seem to be having problems with correctly loading and displaying this comet... :question:

:help:!!!!!!!!!!!!!!!!!!!!!!!!


Thanks in advance :thanx:


Used the following...

[Garradd]
name = C/2009 P1 (Garradd)
parent = Sun
radius = 10
oblateness = 0.0
halo = true
color = 1.0,1.0,1.0
tex_halo = star16x16.png
tex_map = nomap.png
coord_func = comet_orbit
orbit_TimeAtPericenter = 2455919.180101663388
orbit_PericenterDistance = 1.550655945641922
orbit_Eccentricity = 1.000952666458428
orbit_ArgOfPericenter = 90.74299128217653
orbit_AscendingNode = 325.9974500276656
orbit_Inclination = 106.1797590830701
lighting = false
albedo = 1
orbit_visualization_period = 365.25


End result in Stellarium... (Correct location should be in Sagitta).

[Barrykgerdes]

I put those elements into my ssystem.ini and the location of the comet is in Sagitta. Is that where it should be?

If it appears in the wrong place there would need to be an error in the elements or you have the wrong date/time in the program.

You will need to be more specific with the problem.

Barry

[Barrykgerdes]

Hi
Here is some further information
See this photo by Roger from about 11 PM EST 26-8-2011

http://www.rogergroom.com/items/come...rradd_with_M71 (http://www.rogergroom.com/items/come...rradd_with_M71)

and compare it with this screen shot from stellarium.
My ssystem.ini has two entrees for Garradd
(MPC 67963) is the old one and the new one from your list is the other.
The new coords are almost spot on for me

[mithrandir]

I'd have to agree with Barry. It will still be in Sagitta, a bit west of Zeta Sge tonight.

A week or two back I took the coords according to Stellarium/CdC/TheSky6 all using the same orbital elements, fed them into my Gemini and it put Garradd in the FOV, and that was with shoddy polar align.

On Friday with much better PA I did the same, and immediately the fog rolled in.

My own code generates:
[CK09P010]
# H= 4.0 G= 4.0
name = C/2009 P1 (Garradd) # MPEC 2011-Q34
parent = Sun
radius = 543.850273676859
oblateness = 0.0
halo = true
color = 1.0,1.0,1.0
tex_halo = star16x16.png
tex_map = nomap.png
coord_func = comet_orbit
orbit_TimeAtPericenter = 2455919.1754 # 2011-12-23.6754
orbit_PericenterDistance = 1.550564
orbit_Eccentricity = 1.001011
orbit_ArgOfPericenter = 90.7454
orbit_AscendingNode = 325.9972
orbit_Inclination = 106.1774
lighting = true
albedo = 0.15
orbit_visualization_period = 705.220242124208
absolute_magnitude = 4.0
slope_parameter = 4.0
orbit_Epoch = 2455800.5 # 2011-08-27
from MPC's Soft00Cmt which, given the different albedo assumption, matches the values Stellarium 0.10.6 put in ssystem.ini by itself.

[OICURMT]

Cheers guys...

I entered the wrong radius... all good now.

Cheers
OIC!

[rider]

I must be a bit slow. Until yesteday, Ive been manually typing in comet data to ssystem.ini.

I just tried the Stellarium Solar System plug in. - all done at once, current info, and no typos. fantastic!