Explorer Menu
Sutherland Menu
Helm
Astro Navigation
| Class | Solar Zone | Mass to Earth | Description |
|---|---|---|---|
| A | Cold | 300-1,000 | Gas Supergiant |
| B | Cold | 10-1,000 | Gas Giant |
| C | Green | Equal | Greenhouse gas, No water |
| D | Green | Equal | New, Molten (Cools to E) |
| E | Green | Equal | New, Just cooling (Cools to F) |
| F | Green | Equal | New, Surface crystallising (Cools to C, M, or N) |
| G | Hot | Equal | Hot, Heavy gases |
| H | Cold | 1-1/10 | New, molten (Cools to L) |
| I | Any | 1/100 | No atmosphere (like Moon) |
| J | Hot | 1/10 | Volatile atmosphere (if at all) |
| K | Hot | 1/10 | Tenuos atmosphere (with liquid water) |
| L | Cold | 1-1/10 | Frozen atmosphere |
| M | Green | Equal | Abundant life (Earth like) |
| N | Green | Equal | 97% surface is liquid water. Abundant life |
| S | Cold | 10,000 | Gas Ultra-giant, produces light and heat (just short of Sun like fusion) |
| T | Cold | 3,000 | Gas Supergiant (with Liquid Water) |