❄ SNOWSTAR
A Y-class brown dwarf, cold enough to snow, at the center of a procedural universe.
Blue: a reflection nebula beside the star. Small dust grains scatter blue light more than red.
effective temperature
snow decks
first water snow at
state
Uses a Burrows–Liebert power-law cooling model, which is rough. The real coldest one, WISE 0855, is about 285 K. Notes are in research/snowstar.md.