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Alioth

Astronomy AlhenaAlkaid

Alioth (Epsilon Ursae Majoris)
The brightest star in the constellation Ursa Major and the third star from the end of the Big Dipper's handle; its proper name comes from a corruption of the Arabic for "black horse." ...

 


Alioth is a white star of spectral type A0pCr. The spectrum of the star is characterized by abnormally strong lines of chromium and europium (Burnham). The diameter of the star is given in the The Bright Star Catalog as 4 times that of the sun.

Name: Alioth (= "goat")
God Warrior: Fenrir
Info: The brightest star of UMa; an αCVn variable ...

From Megrez, the Dipper's handle stars Alioth and Mizar (as well as Alcor) would be almost aligned, Alioth appearing almost as bright as Venus in our sky.

Alioth Epsilon Ursae Majoris
Alkaid Eta Ursae Majoris
Al Kurud Theta Columbae
Al Kalb al Rai Rho-2 Cephei
Alkalurops Mu Bootis
Al Kaphrah Chi Ursae Majoris
Alkes Alpha Crateris
Alkurah Xi Cephei
Almach Gamma Andromedae
Al Minliar al Asad Kappa Leonis ...

* Epsilon Ursae Majoris (Alioth) (HD 112185)
* 78 Ursae Majoris A (HD 113139A)
* Gliese 503.2 (HD 115043)
* Zeta Ursae Majoris (Mizar) A (HD 116656)
* Zeta Ursae Majoris (Mizar) B (HD 116657)
* 80 Ursae Majoris (Alcor) (HD 116842)
Stream stars ...

[8315] epsilon Ursae Majoris or Alioth ("tail") is the brightest star in Ursa Major and the 31st brightest star in the sky. It has an apparent visual magnitude of 1.76 and is approximately 81 light-years distant.

Alcor (Saidak, 80 UMa), Alioth (ε UMa), Alkaid (Benetnash, η UMa), Alula Australis (ξ UMa), Alula Borealis (ν UMa), Dubhe (α UMa), Megrez (Kaffa, δ UMa), Merak (β UMa), Mizar (ζ UMa), Muscida (ο UMa), ...

Called Alioth (which no one has adequately translated) the star is one of the brightest in the constellation, although one of the more distant stars (if we go by its parallax). The star tables show a distance of only 64 light years.

Named Stars: DUBHE (Alpha UMa) MERAK (Beta UMa) PHAD (Gamma UMa) MEGREZ (Delta UMa) ALIOTH (Epsilon UMa) MIZAR (Zeta UMa) ALCOR (80 UMa)
Once you find and identify the Big Dipper you can use it to find many other stars and constellations.

Starting at the end of the handle and working to the opposite edge of the bowl, the stars of the Big Dipper are:
Alkaid, Mizar, Alioth, Megrez, Phad, Merak and Dubhe.

Pressing "Enter" led to the motors moving the scope near another bright star with the display asking me to "Center Alioth.

This is the same origin as the name Alioth which is applied to the next star along the tail, Epsilon Ursae Majoris.

See also: Star, Ursa Major, Mizar, Sky, Merak