16
Jan
Orion Constellation Nebula. Messier 42 M42 the famous Orion Nebula is an emission-reflection nebula located in the constellation Orion the Hunter. Cepheus was one of the 48 constellations listed by the second century astronomer Ptolemy and it remains one of the 88 constellations in the modern times. Delta Cephei is the prototype. It is a dark cloud composed of dust and gas where star formation is taking place.
Galileo Galilei discovered it in 1617. The constellations brightest star is Alpha Cephei with an apparent magnitude of 25. It is a dark cloud composed of dust and gas where star formation is taking place. Cepheus is a constellation in the northern sky named after Cepheus a king of Aethiopia in Greek mythology. The Pleiades ˈ p l iː ə d iː z ˈ p l aɪ ə d iː z also known as the Seven Sisters and Messier 45 is an open star cluster containing middle-aged hot B-type stars in the north-west of the constellation TaurusIt is among the star clusters nearest to Earth it is the nearest Messier object to Earth and is the cluster most obvious to the naked eye in the night sky. Dec 03 2020 Look for the Orion Nebula about midway down in the Sword of Orion.
Messier 42 M42 the famous Orion Nebula is an emission-reflection nebula located in the constellation Orion the Hunter.
Delta Cephei is the prototype. Dec 03 2020 Look for the Orion Nebula about midway down in the Sword of Orion. The three bright stars that form the Orions Belt are Alnitak Alnilam and Mintaka. Also known as M42 the Orion Nebula is visible to the eye as the middle star. With an apparent magnitude of 40 the Orion Nebula is one of the brightest nebulae in the sky and is visible to the naked eye. Galileo Galilei discovered it in 1617.
