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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.
This is the list of notable stars in the constellation Cassiopeia, sorted by decreasing brightness. Name B F Var HD HIP RA Dec vis. mag. abs. mag. Dist. Sp. class Notes
Cassiopeia A (Cas A) (listen ⓘ) is a supernova remnant (SNR) in the constellation Cassiopeia and the brightest extrasolar radio source in the sky at frequencies above 1 GHz. The supernova occurred approximately 11,000 light-years (3.4 kpc ) away within the Milky Way ; [ 2 ] [ 3 ] given the width of the Orion Arm , it lies in the next-nearest ...
Alpha Cassiopeiae or α Cassiopeiae, also named Schedar (/ ˈ ʃ ɛ d ɑːr /), [10] [11] is a second-magnitude star in the northern constellation of Cassiopeia.Though listed as the "alpha star" by Johann Bayer, α Cas's visual brightness closely matches the 'beta' (β) star in the constellation (Beta Cassiopeiae) and it may appear marginally brighter or dimmer, depending on which passband is ...
Gamma Cassiopeiae, Latinized from γ Cassiopeiae, is a bright star at the center of the distinctive "W" asterism in the northern circumpolar constellation of Cassiopeia. Although it is a fairly bright star with an apparent visual magnitude that varies from 1.6 to 3.0, it has no traditional Arabic or Latin name.
1 Cassiopeiae is a single [10] star in the northern constellation of Cassiopeia, located around 1,130 light years from the Sun. [1] It is visible to the naked eye as a faint, blue-white hued star with an apparent visual magnitude of +4.84. [2] This object is moving closer to the Earth with a heliocentric radial velocity of −9 km/s. [2]
The constellation Perseus the Champion is between Cassiopeia and the Pleiades star cluster. The Double Cluster appears here as three dots within the figure's head; Algenib, the brightest star is ...
Delta Cassiopeiae (δ Cassiopeiae, abbreviated Delta Cas, δ Cas) is an eclipsing binary star system in the northern circumpolar constellation of Cassiopeia.Based on parallax measurements taken during the Hipparcos mission, it is approximately 99.4 light-years (30.5 parsecs) from the Earth.