Answer: tycho

AnswerCrossword Clue
TYCHO... Brahe (alter ego of video game humorist Jerry Holkins)
TYCHODanish astronomer Brahe
TYCHOChance: Comb. form.
TYCHODanish astronomer Brahe.
TYCHODanish astronomer ... Brahe.
TYCHOAstronomer Brahe
TYCHOLarge lunar crater
TYCHOAstronomer ... Brahe
TYCHOLunar crater named for a Danish astronomer