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The Andromeda Galaxy is a barred spiral galaxy and is the nearest major galaxy to the Milky Way. It was originally named the Andromeda Nebula and is cataloged as Messier 31 , M31 , and NGC 224 . 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 ...
Zooming In on the Andromeda Galaxy, also known as Gigapixels of Andromeda, is a 2015 composite photograph of the Andromeda Galaxy produced by the Hubble Space Telescope. It is 1.5 billion pixels in size, and is the largest image ever taken by the telescope. [1] At the time of its release to the public, the image was one of the largest ever ...
NGC 828 is a spiral galaxy in the constellation of Andromeda.Its velocity with respect to the cosmic microwave background is 5200 ± 17 km/s, which corresponds to a Hubble distance of 250.2 ± 17.5 Mly (76.70 ± 5.37 Mpc). [1]
The Hubble Space Telescope has identified several RR Lyrae candidates in globular clusters of the Andromeda Galaxy [3] and has measured the distance to the prototype star RR Lyrae. [14] The Kepler space telescope provided accurate photometric coverage of a single field at regular intervals over an extended period. 37 known RR Lyrae variables ...
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. [17] [18] Y And: 10112: 01 h 39 m 36.89 s +39° 20′ 35″ 10.39 ...
The star was discovered to be variable in 1928, with a photographic magnitude range of 14.7-15.6, at the Harvard College Observatory and designated HV 4476. [8] A year later it was given the variable star designation AE Andromedae. [9]
The EDR contains spectra of nearly two million galaxies, quasars and stars. [22] One early result of the EDR was announced in February 2023 and described a mass migration of stars into the Andromeda Galaxy. [27] The EDR also revealed very distant quasars and very metal-poor stars. [22] [28]
Andromeda: Right ascension: 00 h 43 m 33.086 s [2] Declination ... The star is one of the most luminous variables in M31, the Andromeda Galaxy. Discovery