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Theta Aur

Astronomy ThermosphereTheta Centauri

THETA AUR (Theta Aurigae). Within the confines of Orion, Gemini, Taurus, Auriga, and Perseus, there are so many bright stars that even those that would be singled out anywhere else in the sky get little respect at all.

 


[717] theta Aurigae, sometimes also called Bogardus or Mahasim ("wrist"), is a binary star with an A-type main sequence dwarf for a primary component and a yellow G-type main sequence dwarf for its companion.

18 2095 theta AUR 05 59 43.2 +37 12 45 A0pSi 2.62 -0.08 1577 iota AUR 04 56 59.6 +33 09 58 K3II 2.69 1.53 2219 kappa AUR 06 15 22.6 +29 29 53 G8.5IIIb 4.35 1.02 1729 lambda AUR 05 19 08.4 +40 05 57 G2IV-V 4.71 0.63 1689 mu AUR 05 13 25.

The northern solstice point stands about halfway between the bright ruddy star Betelgeuse of the constellation Orion, and the star Theta Aurigae of the constellation Auriga.

Mahasim Theta Aurigae
Maia 20 Tauri
Marfark Theta Cassiopeiae
Marfik Lambda Ophiuchi
Markab Alpha Pegasi and HR 2948
Matar Eta Pegasi
Mebsuta Epsilon Geminorum
Media Delta Sagittarii
Megrez Delta Ursae Majoris
Meissa Lambda Orionis ...

"poleward arcs" stretching sunward across the polar cap, the related "theta aurora", and "dayside arcs" near noon. These are relatively infrequent and poorly understood.

See also: Auriga, Sky, Star, Delta, Capella

Astronomy ThermosphereTheta Centauri

 
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