Star Luminosity and Orbital Zones

Calculator Instructions

1. Fill 2 of the 3 follwing fields: Radius, Temperature, Luminosity
2. Click "Generate Star" to get the 3rd value for the Star.

Zone Calculator Instructions

Enter any value in one of the fields: Luminosity, Inner and Outer Habitable Zone, Frost Line. The other values will update immediately.

• The Habitable Zone is the range a planet can reside in for it to be habitable, provided it has a sufficient atmosphere and magnetosphere, among other things.
• The Frost Line is the distance from a star where gas giants begin to form.

“This new habitable zone will stretch from 49.4 AU to 71.4 AU – well into the Kuiper Belt – which means the formerly icy worlds will melt, and liquid water will be present beyond the orbit of Pluto.” (Source)

A quasi-star is a hypothetical type of extremely massive and luminous star that existed in the early history of the universe. The star's energy came from a dying black hole in its core.