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The Perseus Arm is a spiral arm of the Milky Way galaxy and stretches across the sky from the constellation Cassiopeia through Perseus and Auriga to Gemini and Monoceros. [66] This segment is towards the rim of the galaxy. [65] Within the Perseus Arm lie two open clusters (NGC 869 and NGC 884) known as the Double Cluster. [67]
NGC 869 (also known as h Persei) is an open cluster located 7460 light years away in the constellation of Perseus. [2] The cluster is about 14 million years old. [2] It is the westernmost of the Double Cluster with NGC 884. NGC 869 and 884 are often designated h and χ (chi) Persei, respectively.
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 ...
The Perseus Family includes several constellations associated with the Perseus myth: Cassiopeia, Cepheus, Andromeda, Perseus, Pegasus, and Cetus (representing the monster sent to devour Andromeda). Menzel also included a few neighboring constellations: Auriga, Lacerta, and Triangulum. Except for Cetus, these constellations all lie north of the ...
Andromeda is one of the 48 constellations listed by the 2nd-century Greco-Roman astronomer Ptolemy, and one of the 88 modern constellations.Located in the northern celestial hemisphere, it is named for Andromeda, daughter of Cassiopeia, in the Greek myth, who was chained to a rock to be eaten by the sea monster Cetus.
The 1981 film Clash of the Titans is loosely based on the story of Perseus, Andromeda, and Cassiopeia. In the film the monster is a kraken , a giant squid-like sea monster in Norse mythology , rather than the whale-like Cetos of Greek mythology.
The Perseus cluster (Abell 426) is a cluster of galaxies in the constellation Perseus. It has a recession speed of 5,366 km/ s and a diameter of 863 ′ . [ 1 ] It is one of the most massive objects in the known universe , containing thousands of galaxies immersed in a vast cloud of multimillion-degree gas.