Ups

Variable star

Its story

Upsilon Cygni is a luminous blue giant 642 light-years away, in the tail of the Swan, almost aligned with the Cygnus Rift — the great corridor of galactic dust that splits the summer Milky Way. Its surface exceeds twenty thousand degrees and radiates mostly in the ultraviolet: what the human eye sees is barely the visible tip of a far harsher torrent.

Constellation: Cygnus
Apparent magnitude: 4.41
Distance: 642.1 light years
Coordinates (J2000): RA 319.479° · Dec 34.897°
Catalogue: HIP 105138 · HD 202904

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