Challenge #3 – M42, the Orion Nebula in Orion
Target Type R. A. Dec. Constellation Magnitude Size M42 (NGC 1976) Bright Nebula 05h 35m 24s -05° 27′ 00″ Orion +4.00 85×60 arcmin Overview M17, the brightest summer nebula in the northern hemisphere, was discovered by Philippe Loys de Cheseaux in 1745. Messier added it to his catalog 19 years later, in 1764, after discovering …