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RCW 106 is a large star-forming nebula in the Constellation Norma. [ 1 ] RCW 106 is visible in the direction of the R103 OB association and is embedded in a 100 thousand solar mass 28 pc x 94 pc giant molecular cloud.
A number of fan conventions were organized by Due South fans during the 1990s, the biggest and best-known of which was "RCW 139", so named after the license plate number that recurred throughout the series. RCW 139 was held annually in Toronto between 1996 and 1999, attracting approximately 300 fans from more than 10 countries in both 1998 and ...
Proplyd 181−247, which is a brown dwarf or low-mass star, is surrounded by a disk with a radius of 30 astronomical units and the disk has a mass of 6.2±1.0 M J. [142] Disks around brown dwarfs usually have a radius smaller than 40 astronomical units , but three disks in the more distant Taurus molecular cloud have a radius larger than 70 au ...