 Image by ESO, via Wikimedia Commons. Licensed CC BY 4.0 |
The SongmenCoalsack Nebula Coalsack Nebula Dark nebula in the constellation Crux The Coalsack Nebula (Southern Coalsack, or simply the Coalsack)[3] is a dark nebula, which is visible to the naked eye as a dark patch obscuring part of the Milky Way east of Acrux (Alpha Crucis) in the constellation of Crux.[2] Quick facts Dark nebula, Observation data: J2000.0 epoch ... Coalsack Nebula Dark nebula The Coalsack Nebula, taken by the Wide Field Imager on the MPG/ESO 2.2-metre telescope[1] Observation data: J2000.0 epoch Right ascension 12h 50m Declination −62° 30′ Distance 180[2] pc Apparent magnitude (V) – Apparent dimensions (V) 7° × 5° Constellation Crux Physical characteristics Radius 30–35 ly Absolute magnitude (V) – Notable features – Designations Caldwell 99 See also:… (Source: Wikipedia)
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