radius vs Rsun

General discussion about Celestia that doesn't fit into other forums.
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doctrellor
Posts: 35
Joined: 25.03.2004
With us: 20 years 8 months
Location: California

radius vs Rsun

Post #1by doctrellor » 19.08.2006, 07:52

I have a question about changing the size of my brown dwarf...

now normally BD's are the size of Jupiter or smaller, and according to Celestia and the T1V setting, it gives me a .01 RSun which is the size of earth.

Now I know that BD's shrink over time, but I don't think they shrink THAT much

so in the .stc I put in radius 0.09, but it messed up my little BD and made it microscopic...lol

So is there a command like RSun where I can enter in a default stellar radius

buggs_moran
Posts: 835
Joined: 27.09.2004
With us: 20 years 2 months
Location: Massachusetts, USA

Post #2by buggs_moran » 19.08.2006, 14:35

In stc files, radius must be entered in kilometers, not solar radii as they show in the info box within Celestia.

For instance, this is a snippet of code for part of a binary system I wm working on where the white dwarf is a bit smaller than earth, or .01 Rsol.

Code: Select all

"V426 OPH Dwarf" # Primary white dwarf component
{
OrbitBarycenter       "V426 OPH"
SpectralType           "DA"
AbsMag        11.0
Radius                 5497.9374   # km
...


Read this http://www.lns.cornell.edu/~seb/celesti ... files.html AND this http://www.celestiamotherlode.net/creat ... CGuide.zip for SSCs and this http://www.celestiamotherlode.net/creat ... de_1.2.pdf for STCs.
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