Veil_Aug16_All_DSS_4calAug20_ScoreOver50000_BiLinear_DC_DBE_BN_CC_TGV_MMT_HT-20200816.jpg

Cygnus Loop, or Veil Nebula, 60 two-minute exposures taken on August 16, 2020. A three-degree-wide (6 full moons wide) spherical expanding bubble of glowing gas from a star that exploded as a supernova about 21 thousand years ago. About 130 light-years in diameter, at a distance of about 2000 light-years.

Done