RCW 58 and its equally beautiful, gigantic star WR40 (Wolf-Rayet 40 named after the French astronomers, Charles Wolf and Georges Rayet) with a mass 100 times greater than our sun and a ...
Sh2-284 is a large emission nebula in the constellation Unicornus.
It is observed in the east-central part of the constellation, about 5° southeast of the Rosetta Nebula. It can be s...