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Cassiopeia (listen ⓘ) is a constellation and asterism in the northern sky named after the vain queen Cassiopeia, mother of Andromeda, in Greek mythology, who boasted about her unrivaled beauty. Cassiopeia was one of the 48 constellations listed by the 2nd-century Greek astronomer Ptolemy , and it remains one of the 88 modern constellations today.
Cassiopeia (/ ˌ k æ s i. oʊ ˈ p iː. ə /; [1] Ancient Greek: Κασσιόπεια Kassiópeia, Modern Greek: Κασσιόπη Kassiópē) or Cassiepeia (Κασσιέπεια Kassiépeia), a figure in Greek mythology, was Queen of Aethiopia and wife of King Cepheus of Ethiopia. She was arrogant and vain, characteristics that led to her ...
Sh 2-185 is an H II region centered on the massive star system Gamma Cassiopeiae (γ Cas) in the northern constellation of Cassiopeia.It was included in the second Catalogue of H II Regions, published in 1959 by Stewart Sharpless. [3]
Messier 52 or M52, also known as NGC 7654 or the Scorpion Cluster, is an open cluster of stars in the highly northern constellation of Cassiopeia. It was discovered by Charles Messier in 1774. [ 3 ] [ a ] It can be seen from Earth under a good night sky with binoculars .
Two pages from the Ratdolt edition of the De astronomia showing woodcuts of the constellations Cassiopeia and Andromeda.Courtesy of the US Naval Observatory Library. De astronomia (Latin: [deː äs̠t̪rɔˈnɔmiä]; Concerning Astronomy) [nb 1] is a book of stories written in Latin, probably during the reign of Augustus (c. 27 BC – AD 14).
Theta Cassiopeiae or θ Cassiopeiae is a solitary [3] star in the northern constellation of Cassiopeia.It shares the traditional name Marfak / ˈ m ɑːr f æ k / with μ Cassiopeiae, positioned less than half a degree to the WSW, [11] which is derived from the Arabic term Al Marfik or Al Mirfaq (المرفق), meaning "the elbow". [12]
Rho Cassiopeiae (/ ˌ r oʊ k æ s i ə ˈ p iː aɪ,-s i oʊ-,-iː /; ρ Cas, ρ Cassiopeiae) is a yellow hypergiant star in the constellation Cassiopeia.It is about 8,150 light-years (2,500 pc) from Earth, yet can still be seen by the naked eye as it is over 300,000 times brighter than the Sun.
12 Cassiopeiae (12 Cas) is a white giant in the constellation Cassiopeia, about 860 light years away. It has an apparent magnitude of 5.4, so it faintly visible to the naked eye. The spectrum of 12 Cassiopeiae is classified as a B9-type giant.