Universe Sandbox

Universe Sandbox => Universe Sandbox ² | Discussion => Topic started by: B-McKinley on October 26, 2015, 05:55:29 PM

Title: White dwarf simulation (G29-38)
Post by: B-McKinley on October 26, 2015, 05:55:29 PM

I'm trying to create a simulation of a fictional planetary system around the factual white dwarf G29-38 (https://en.wikipedia.org/wiki/G_29-38). I'm starting with an empty simulation and trying to modify Sirius B to match these properties.

• Mass 0.69 sun
• Radius 8.2x10⁸cm
• Density 6.0x10⁶ g cm^-3
• T_eff 11,820 K
• Lum .0024 sun

But whenever I try to get everything set correctly, I can't seem to get all of those set the way I want. Something is always shifting out of whack as I adjust something else. Is there a method to get everything set the way I want it?

G29-38 also has a debris disc. I was wondering what the radius units for rings - radius, length, and geo refer to.

Title: Re: White dwarf simulation (G29-38)
Post by: codefantastic on October 27, 2015, 06:06:22 AM

Try turning "Realistic" off.

Title: Re: White dwarf simulation (G29-38)
Post by: B-McKinley on October 27, 2015, 10:57:51 AM

That helps, and also remembering that density is directly related to mass and radius. :-[

Title: Re: White dwarf simulation (G29-38)
Post by: Darvince on October 27, 2015, 10:55:05 PM

Quote from: codefantastic on October 27, 2015, 06:06:22 AM

Try turning "Realistic" off.

oh my god thank you I had no idea about that option and was endlessly frustrated that I couldn't get any of my objects the way I wanted them