magnitude of 4.13. The four stars are known as Mu Orionis Aa, Mu Orionis Ab, Mu Orionis Ba, and Mu Orionis Bb. The A and B systems are several tenths of...

and Pi Orionis), and instead of an arm marked out by Mu Orionis, he holds a club (Chi Orionis). His right leg is represented by Theta Orionis and his...

at near-infrared wavelengths. Its Bayer designation is α Orionis, Latinised to Alpha Orionis and abbreviated Alpha Ori or α Ori. With a radius around...

Mu Cephei (Latinized from μ Cephei, abbreviated Mu Cep or μ Cep), also known as Herschel's Garnet Star, Erakis, or HD 206936, is a red supergiant or hypergiant...

12 is known as "the hidden planetary" because of the foreground star Mu Orionis making it difficult to observe and Abell 12 being at an apparent magnitude...

velocity of over 200 km/s. Their common point of origin intersects with Iota Orionis in the Trapezium cluster, some two and half million years in the past....

80..318B. doi:10.1086/111748. Heintz, W. D. (May 1989). "The Orbits of MU Orionis and 9 Puppis". Publications of the Astronomical Society of the Pacific...

O4I(n)fp Alnilam (Epsilon Orionis) B-type supergiant, spectral type B0Ia, central star of Orion's Belt Saiph (Kappa Orionis) B-type supergiant, spectral...

Wavelengths of the Diameters of alpha Orionis and alpha Scorpii: Changes in Effective Temperature of alpha Orionis and Very Recent Dust Emission". Astrophysical...

297, been found to have a dusty disk surrounding it, and is also a UX Orionis star, meaning that it shows irregular variations in its brightness. The...

4 visibly bright O-type stars are Gamma Velorum, Alnitak (Zeta Orionis), Mintaka (Delta Orionis), and Zeta Puppis. The corona present in other spectral types...

Mrigashira - मृगशिर "the deer's head". Also known as āgrahāyaṇī λ "Meissa", φ Orionis Lord: Mangala (Mars) Symbol: Deer's head Deity: Soma, Chandra, the Moon...

star system 2.77 2.76 Beta Herculis Binary star system 2.77 2.76 Iota Orionis Quadruple star system 2.79 2.72 Beta Eridani Star 2.79 2.76 Cor Caroli...

on Theta1 Orionis C, which lies on the side of an elongated molecular cloud in a cavity formed by the massive young stars. (Theta1 Orionis C emits 3-4...

(1981). "The near ultraviolet stellar spectra of alpha Lyrae and beta Orionis". Monthly Notices of the Royal Astronomical Society. 197: 57–74. Bibcode:1981MNRAS...

Kent or even Rigil, though the latter name is better known for Rigel (β Orionis). An alternative name found in European sources, Toliman, is an approximation...

19°20′ Gemini 5 Mṛgaśīrā "the deer's head". Also known as āgrahāyaṇī λ, φ Orionis Astrological leader: Mangala (Mars) Symbol: Deer's head Rigvedic name:...

String of Pearls النظم النَّظْم Epsilon Orionis Alnitak an-Niṭāq the Girdle (Orion's Belt) النطاق النِّطَاق Zeta Orionis Alphard al-Fard the Solitary one الفرد...

a mere 300,000 years old composed of two pre-main-sequence stars—a FU Orionis star and a Herbig Ae/Be star, which has brightened episodically by two...

Named after Joseph Algernon Pearce. Persson's Star is V733 Cephei, an FU Orionis type object. Named after R. Persson. Piazzi's Flying Star, see Bessel's...

; Jayawardhana, R. (2002-11-01). "Direct detection of the companion of Orionis". Astronomy & Astrophysics. 394 (3): L43–L46. doi:10.1051/0004-6361:20021377...

Fang, Min; Facchini, Stefano (2016-07-20). "Proplyds Around a B1 Star: 42 Orionis in NGC 1977". The Astrophysical Journal. 826 (1): L15. arXiv:1606.08271...

quantum mechanics. Spectral standards: B0V – Upsilon Orionis B0Ia – Alnilam B2Ia – Chi2 Orionis B2Ib – 9 Cephei B3V – Eta Ursae Majoris B3V – Eta Aurigae...

0 v 2 = B 0 2 2 μ 0 , {\displaystyle \rho _{0}v^{2}={\frac {B_{0}^{2}}{2\mu _{0}}},} where ρ 0 {\displaystyle \rho _{0}} is the density of the plasma...

to start observations sometime in the 2030s. 7.9 Gm – Diameter of Gamma Orionis, a blue dwarf or blue giant 9.0 Gm – Estimated diameter of the event horizon...

Draco 18h 21m 03.4s +72° 43′ 58″ F7V 3.68# 124.11±0.87 B$ K0V 5.67# Pi3 Orionis (Tabit)$ 26.316±0.036 Orion 04h 49m 50.4s +06° 57′ 41″ F6V 3.16# 123.94±0...

(2000-10-06). "Discovery of Young, Isolated Planetary Mass Objects in the σ Orionis Star Cluster". Science. 290 (5489): 103–107. Bibcode:2000Sci...290..103Z...

8 ± 0.6 1 GV HIP 38594 63.8 ± 2.0 1 MV Gliese 3859 63.9 ± 0.7 1 GV 74 Orionis 64.0 ± 1.1 1 FV Gliese 3383 64.0 +8.5 −6.7 1 GV Alpha Trianguli (Mothallah)...

light FUOR – (celestial object) FU Orionis objects, a class of variable pre–main sequence stars named after FU Orionis, the archetype for the class also...

study of mass loss from the mid-ultraviolet spectrum of α Cygni (A2 Ia), β Orionis (B8 Ia), and η Leonis (A0 Ib)". The Astrophysical Journal. 223: 207. Bibcode:1978ApJ...