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a variable star in the constellation of Andromeda. It is classified as a semiregular variable pulsating giant star, and varies from an apparent visual magnitude of 14.5 at minimum brightness to a magnitude of 9.9 at maximum brightness, with a period of approximately 238.3 days.
Andromeda as it appears in the night sky, with the superimposed figure. α And (Alpheratz) is the brightest star in this constellation. It is an A0p class [10] binary star with an overall apparent visual magnitude of 2.1 and a luminosity of 96 L ☉. [24] It is 97 light-years from Earth. [25]
Fifth brightest star in the night sky. [72] Altair (α Aquilae) 2.01 × 1.57 [105] Twelfth brightest star in the night sky. Sirius (α Canis Majoris A) 1.713 [106] AD The brightest star in the night sky. Rigil Kentaurus (α Centauri A) 1.2175 [107] AD Third brightest star in the night sky. Sun: 1: The largest object in the Solar System.
Cassiopeia in the night sky Cassiopeia, animation of all stars from 4th to 10th magnitude. Cassiopeia had a supernova, Cassiopeia A, SN 1572. Covering 598.4 square degrees and hence 1.451% of the sky, Cassiopeia ranks 25th of the 88 constellations in area. [11]
NASA recently released images of the Andromeda galaxy, an empire of stars, that is the Milky Way galaxy's closest neighbor. This photo shows the Milky Way as seen from Black Balsam, mountain range ...
The Midnight Sky is a 2020 American science fiction film directed by George Clooney based on the 2016 novel Good Morning, Midnight by Lily Brooks-Dalton. The script was written by Mark L. Smith . Clooney plays a leading role in his film, as an aging scientist who must venture across the frigid Arctic Circle to warn off a returning ...
In 2016, the International Astronomical Union (IAU) organized a Working Group on Star Names (WGSN) [2] to catalog and standardize proper names for stars. The WGSN's first bulletin, dated July 2016, [3] included a table of 125 stars comprising the first two batches of names approved by the WGSN (on 30 June and 20 July 2016) together with names of stars adopted by the IAU Executive Committee ...
Andromeda has a D 25 isophotal diameter of about 46.56 kiloparsecs (152,000 light-years) [8] and is approximately 765 kpc (2.5 million light-years) from Earth. The galaxy's name stems from the area of Earth's sky in which it appears, the constellation of Andromeda, which itself is named after the princess who was the wife of Perseus in Greek ...