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English: The Andromeda Galaxy is a spiral galaxy approximately 2.5 million light-years away in the constellation Andromeda. The image also shows Messier Objects 32 and 110, as well as NGC 206 (a bright star cloud in the Andromeda Galaxy) and the star Nu Andromedae. This image was taken using a hydrogen-alpha filter.
Andromeda III is a dwarf spheroidal galaxy about 2.44 million light-years away in the constellation Andromeda. It is part of the Local Group and is a satellite galaxy of the Andromeda Galaxy (M31). The galaxy was discovered by Sidney van den Bergh [2] on photographic plates taken in 1970 and 1971.
Andromeda XXI ( And 21, And XXI) is a moderately bright dwarf spheroidal galaxy about 859 ± 51 kiloparsecs (2.80 ± 0.17 Mly) away from the Sun in the constellation Andromeda. It is the fourth largest Local Group dwarf spheroidal galaxy. The discovery arose from the first year data of a photometric survey of the M31 / M33 subgroupings of the ...
Abd al-Rahman al-Sufi. ʿAbd al-Raḥmān al-Ṣūfī ( Persian: عبدالرحمن الصوفی; 7 December 903 – 25 May 986) was an Iranian astronomer. [1] [2] [note 1] His work Kitāb ṣuwar al-kawākib (" The Book of Fixed Stars "), written in 964, included both textual descriptions and illustrations. The Persian polymath Al-Biruni wrote ...
14 Andromedae b (abbreviated 14 And b ), formally named Spe / ˈspiː /, is an exoplanet approximately 249 light years away in the constellation of Andromeda . The 186-day period planet orbits about 83% the Earth - Sun distance from the giant star 14 Andromedae. It has a minimum mass 4.8 times the mass of Jupiter.
The Magellanic Clouds ( Magellanic system [2] [3] or Nubeculae Magellani [4]) are two irregular dwarf galaxies in the southern celestial hemisphere. Orbiting the Milky Way galaxy, these satellite galaxies are members of the Local Group. Because both show signs of a bar structure, they are often reclassified as Magellanic spiral galaxies.
Nu Andromedae. Nu Andromedae ( Atropabella by Alicia, Nu And, ν Andromedae, ν And) is a binary star in the constellation Andromeda. The system has an apparent visual magnitude of 4.5, [2] which is bright enough to be seen with the naked eye. It is approximately 620 light-years (190 parsecs) from Earth. [1] Situated just over a degree to the ...
The Milky Way has several smaller galaxies gravitationally bound to it, as part of the Milky Way subgroup, which is part of the local galaxy cluster, the Local Group.. There are 61 small galaxies confirmed to be within 420 kiloparsecs (1.4 million light-years) of the Milky Way, but not all of them are necessarily in orbit, and some may themselves be in orbit of other satellite galaxies.