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It is one of the 48 constellations described by the 2nd century astronomer Ptolemy, and remains one of the 88 modern constellations. It is a mid-sized constellation ranking 39th in overall size, with an area of 441 square degrees (1.1% of the celestial sphere). Aries has represented a ram since late Babylonian times.
This is the list of notable stars in the constellation Aries, sorted by decreasing brightness ... "Identification of a Constellation from a Position" Samus, N. N ...
The first point of Aries, also known as the cusp of Aries, is the location of the March equinox (the vernal equinox in the northern hemisphere, and the autumnal equinox in the southern), used as a reference point in celestial coordinate systems. In diagrams using such coordinate systems, it is often indicated with the symbol ♈︎.
Hamal / ˈ h æ m əl /, [12] designated Alpha Arietis (α Arietis, abbreviated Alpha Ari, α Ari), is the brightest star in the northern zodiacal constellation of Aries. [4] [13]With an apparent visual magnitude of 2.0, [2] it is the mean 50th-brightest star in the night sky.
This image is a derivative work of the following images: File:Aries constellation map.png licensed with Cc-by-sa-3.0-migrated, GFDL 2004-12-12T17:55:26Z Alfio 2269x2299 (124060 Bytes) Aries constellation map (bigger image) 2004-12-12T12:11:57Z Alfio 378x384 (18554 Bytes) Aries constellation map; Uploaded with derivativeFX
Gamma Arietis (γ Arietis, abbreviated Gamma Ari, γ Ari) is a binary star (possibly trinary) in the northern constellation of Aries.The two components are designated γ 1 Arietis or Gamma Arietis B and γ 2 Arietis or Gamma Arietis A (formally named Mesarthim / m ɛ ˈ s ɑːr θ ɪ m /, the traditional name for the Gamma Arietis system).
41 Arietis (abbreviated 41 Ari) is a triple star system in the northern constellation of Aries. With an apparent visual magnitude of 3.63, [2] this system is readily visible to the naked eye. It has an annual parallax shift of 19.69 mas, [1] which indicates it is at a distance of 166 light-years (51 parsecs) from the Sun.
Pi Arietis, Latinized from π Arietis, is the Bayer designation for a multiple star system in the northern constellation of Aries.Based upon parallax measurements made during the Hipparcos mission, this system is approximately 800 light-years (250 parsecs) distant from Earth and has an apparent visual magnitude of 5.21.