JShrum
professor emeritus
Reged: 08/14/07
Posts: 734
Loc: Bay City, MI, USA
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Just found a spot on the web that has instructions for adding Comet 17P Holmes to Stellarium if anybody cares to add it. You place the following into the file ssystem.ini in the Stellarium\data directory. You must have version 0.9.0.
[17P/Holmes]
name = 17P/Holmes
parent = Sun
radius = 1000
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 = 2454225.0277
orbit_PericenterDistance = 2.053218
orbit_Eccentricity = 0.432564
orbit_ArgOfPericenter = 24.2712
orbit_AscendingNode = 326.8646
orbit_Inclination = 19.1126
orbit_SemiMajorAxis = 3.617468
lighting = false
albedo = 1
sidereal_period = 2578.665
If anyone knows of any updates or improvements to the above, I'd sure appreciate hearing of them.
Clear Skies. 
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Jeff Shrum
Bay City, MI
CPC 1100 XLT
WO 2" Crayford 2-speed Focuser
OPT 2" Dielectric Diagonal
Sunset Astronomical Society
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josie521
sage
Reged: 09/03/07
Posts: 257
Loc: 43.22 n 75.45w
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How ?  ..when it comes to computers i cant figure these things out
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JShrum
professor emeritus
Reged: 08/14/07
Posts: 734
Loc: Bay City, MI, USA
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Click on the Start Button and choose Search. Look at your choices...You want to Search for Files and Folders. You want to Search in Local Harddrives [C:]. Search for a File or Folder named ssystem.ini. Once the search is complete, the file should be listed in the Search Window. Double click on that file and it should open in Notepad. Copy the text from the thread above starting with [17P/Holmes] and ending with siderealperiod = 2578.665 (getting everything in between). To do this, highlight it by clicking and dragging the mouse from the start to end points. From the menu on your browser choose copy. Click back to Notepad and scroll to the bottom of the file. Place the cursor on the empty line below (I believe) Vesta's data. Choose the Edit menu from within NotePad, and select Paste. Close or Exit Notepad and save the changes. Restart Stellarium...you'll find 17P Holmes near Persius in the NE in the evening.
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Jeff Shrum
Bay City, MI
CPC 1100 XLT
WO 2" Crayford 2-speed Focuser
OPT 2" Dielectric Diagonal
Sunset Astronomical Society
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chanda7
super member
Reged: 08/06/07
Posts: 148
Loc: Southeast TN
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Cool  Thanks!
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Chanda
Orion XT8 Classic, ultra-cheap 10x50 binoculars
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nolans
member
Reged: 10/30/07
Posts: 57
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Thanks, that's exactly what I needed!
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smokin oakum
Pooh-Bah
Reged: 09/24/07
Posts: 1426
Loc: Wilmington, NC
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Very cool. What moon is that showing when you zoom in? It just dosen't look like a comet. But what do I know.
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smokin oakum
Pooh-Bah
Reged: 09/24/07
Posts: 1426
Loc: Wilmington, NC
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By the way, If some one could fix my sky clock so it shows more blue I'd realy appreciate it.  
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Broadcasting live views of the night sky @
Sparkcast
C11 CGE / Hyperstar
MallinCam Hyper Plus Color
Orion 12" XTi f/4.9
MoonLite Focuser
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12" Parralax rings
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Buck
sage
Reged: 04/29/05
Posts: 471
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The Clear Sky Clock is OK, you just need a cloud filter! 
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smokin oakum
Pooh-Bah
Reged: 09/24/07
Posts: 1426
Loc: Wilmington, NC
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Quote:
The Clear Sky Clock is OK, you just need a cloud filter!
Does Tele Vue make one?
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Broadcasting live views of the night sky @
Sparkcast
C11 CGE / Hyperstar
MallinCam Hyper Plus Color
Orion 12" XTi f/4.9
MoonLite Focuser
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12" Parralax rings
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pike_fly
sage
Reged: 10/10/07
Posts: 365
Loc: Roxborough Park, Colorado
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Thanks Jeff - I looked for this last week and forgot to research it again!
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Lee
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JShrum
professor emeritus
Reged: 08/14/07
Posts: 734
Loc: Bay City, MI, USA
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Quote:
What moon is that showing when you zoom in? It just dosen't look like a comet. But what do I know.
You're correct, it's a default texture. I'm trying to make JR Crilly's photo of the comet work instead of the built-in "tex_map"...if I can get it to work, get his name on it as credit, (and of course get his permission), I'll put up the file and how to add it. With my work load, it'll probably be long after the comet has disappeared though. 
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Jeff Shrum
Bay City, MI
CPC 1100 XLT
WO 2" Crayford 2-speed Focuser
OPT 2" Dielectric Diagonal
Sunset Astronomical Society
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JShrum
professor emeritus
Reged: 08/14/07
Posts: 734
Loc: Bay City, MI, USA
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Ok...
Thank you to Mr Crilly.  I have got his permission and a basic file done.
Instructions:
In the ssystem.ini; Change the tex_map to 17P-Holmes.png rather than the nomap.png, add the following lines (it has to do with rotation and if someone can figure out how to make it not rotate we'd be better off) rot_periode = 2400, rot_obliquity = 20. Then copy the downloaded 17P-Holmes.png file into the Stellarium Textures directory (folder).
My best shot on limited time. 
Clear Skies!
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Jeff Shrum
Bay City, MI
CPC 1100 XLT
WO 2" Crayford 2-speed Focuser
OPT 2" Dielectric Diagonal
Sunset Astronomical Society
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JBull
sage
Reged: 10/10/05
Posts: 401
Loc: Dallas, TX
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Cool, thanks for working on that.
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Jeff Bullard
Dallas, TX
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TomC10
sage
Reged: 12/21/04
Posts: 239
Loc: Land of Enchantment
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Quote:
You must have version 0.9.0.
Yep, I tried it on version 0.7.1 anyway, no luck. Guess I'll have to upgrade when I have time...
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Tom C
C10 NGT
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imeridian
scholastic sledgehammer
Reged: 08/22/07
Posts: 893
Loc: South Central PA
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Thank you for taking the time to explain how to do this.
For Mac users, I found that if I did the edit in "TextEdit" Stellarium would crash on launch, but it worked fine if I edited in Terminal using nano.
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CarolG
sage
Reged: 10/16/06
Posts: 495
Loc: Oklahoma
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Thanks, Jeff, for showing us how to add 17P/Holmes to Stellarium. I do have a couple of questions. I was trying to get Mr. Crilly's beautiful photo into the program, but you lost me when you said to download the png file. How do you do that? Also, I had no problem putting the Holmes data into Stellarium on my XP computer, but when I tried to do the same on my Vista computer, it wouldn't let me save the changes to the file. A window kept popping up saying it was an invalid file path, so I never could get it into the Vista run computer. Any thoughts on what to do? Thanks in advance for any help!!
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Carol
NS11 XLT on a Scopebuggy
TV85 w/FeatherTouch/DM4/SC
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JShrum
professor emeritus
Reged: 08/14/07
Posts: 734
Loc: Bay City, MI, USA
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To get the photo, just right click on the photo in the thread above and choose Save Picture As. Browse to the Stellarium Textures folder and Save.
Vista. I have Vista but have not loaded it anywhere. Sounds like there is some type of file protection going on. Can you save the file with changes to a different location on the disk (known location obviously)? If so, try copying it (after doing so) to the correct location. You can also right click on the original ini file and choose Properties...then look to see if the file is checked Read Only...if so, uncheck it.
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Jeff Shrum
Bay City, MI
CPC 1100 XLT
WO 2" Crayford 2-speed Focuser
OPT 2" Dielectric Diagonal
Sunset Astronomical Society
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CarolG
sage
Reged: 10/16/06
Posts: 495
Loc: Oklahoma
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Thanks, Jeff. Got the pic downloaded, thanks to your easy instructions. I'm not at my Vista computer right now, but will see if I can get it working following your suggestions.
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Carol
NS11 XLT on a Scopebuggy
TV85 w/FeatherTouch/DM4/SC
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JShrum
professor emeritus
Reged: 08/14/07
Posts: 734
Loc: Bay City, MI, USA
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Just so everyone knows...over time the "picture" will rotate (3D)...yikes. Stellarium takes that square picture and changes it into a ball. I am trying different combinations with the last two "rot_" parameters to try to make it not rotate or just rotate across the "area" facing Earth. No luck so far.
Clear Skies...
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Jeff Shrum
Bay City, MI
CPC 1100 XLT
WO 2" Crayford 2-speed Focuser
OPT 2" Dielectric Diagonal
Sunset Astronomical Society
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westender
super member
Reged: 10/01/05
Posts: 181
Loc: Scranton,Pa.
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Jeff,
I pasted the spec you posted, but all i seem to get is a giant white ball on my screen in the area of perseus. Any suggestions???
Bob
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