Upgrade your account to a Community Supporter account and remove most of the site ads.
Enchanted Trinkets Complete--a hardcover book containing over 500 magic items for your D&D games!

Reply to thread

Message: <blockquote data-quote="Achan hiArusa" data-source="post: 1743801" data-attributes="member: 2597">Jupiter as a SunTo become a L class brown dwarf (capable of Deuterium Fusion) it would have to to 13 Jovian masses (0.013 Solar Masses).  To have the same gravitational effect as Jupiter it would have to be about 3.5 times as far away as it is now (18.2 AU or just inside Uranus's orbit).  It would be dimmer than Jupiter due to its size (which would increase it) and distance (which would decrease it).  It will be a T class brown dwarf at about 28 Jovian masses (0.028 Solar Masses) it would have to be 4.5 times as far away (24.8 AU or just inside Neptune's orbit), it would glow slightly red on the order of 10,000,000 years and would then cool down.  At about 50 jovian masses (0.050 Solar Masses) it would be a true star (M class, red colored) and would have to be 5.5 times as far away (28.6 AU or still just inside Neptune's Orbit).  As for Day/Night Cycles I would find a night sky simulator (Carinasoft.com has a trial version of Voyager III) and then just track Uranus or Neptune in the night sky.  If you want to borrow a real universe system look at the Extrasolar Planets encyclopedia (<a href="http://www.obspm.fr/encycl/encycl.html" target="_blank">www.obspm.fr/encycl/encycl.html</a>) or Extrasolar visions (<a href="http://www.extrasolar.net" target="_blank">www.extrasolar.net</a>).  The first one is more technically accurate, the second has pretty pictures and diagrams.</blockquote>

Verification