Omega Ursae Majoris

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ω Ursae Majoris
Observation data Epoch J2000.0 Equinox J2000.0
Constellation	Ursa Major
Right ascension	10^h 53^m 58.7^s
Declination	+43° 11' 24"
Apparent magnitude (V)	+4.66
Distance	267 ± 15 ly (82 ± 5 pc)
Spectral type	A1V s
Other designations
45 Ursae Majoris, HR 4248, HD 94334, BD+43 2058, FK5 2870, HIP 53295, SAO 43512, GC 14974

Omega Ursae Majoris (ω UMa, ω Ursae Majoris) is a binary star in the constellation Ursa Major. It is approximately 267 light years from Earth.

Omega Ursae Majoris is a spectroscopic binary which is classified as a white A-type main sequence dwarf with an apparent magnitude of +4.66. The binary system has an orbital period of 15.8 days.

v t e Stars of Ursa Major

Bayer	α (Dubhe) β (Merak) γ (Phecda) δ (Megrez) ε (Alioth) ζ (Mizar) η (Alkaid) θ (Alhaud) ι (Talitha Bor) κ (Talitha Aus) λ (Tania Bor) μ (Tania Aus) ν (Alula Bor) ξ (Alula Aus) ο (Muscida) π¹ π² ρ σ¹ σ² τ υ φ χ ψ ω b c d e f g (Alcor) h A

Flamsteed	1 (ο, Muscida) 2 (A) 3 (π¹) 4 (π²) 5 (b) 6 7 8 (ρ) 9 (ι, Talitha Bor) 11 (σ¹) 12 (κ, Talitha Aus) 13 (σ²) 14 (τ) 15 (f) 16 (c) 17 18 (e) 19 20 21 22 23 (h) 24 (d) 25 (θ, Alhaud) 26 27 28 29 (υ) 30 (φ) 31 32 33 (λ, Tania Bor) 34 (μ, Tania Aus) 35 36 37 38 39 40 41 42 43 44 45 (ω) 46 47 48 (β, Merak) 49 50 (α, Dubhe) 51 52 (ψ) 53 (ξ, Alula Aus) 54 (ν, Alula Bor) 55 56 57 58 59 60 61 62 63 (χ) 64 (γ, Phecda) 65 66 67 68 69 (δ, Megrez) 70 71 72 73 74 75 76 77 (ε, Alioth) 78 79 (ζ, Mizar) 80 (g, Alcor) 81 82 83 84 85 (η, Alkaid) 86 55 Cam 56 Cam 57 Cam 1 CVn 14 LMi 15 LMi 47 LMi 37 Lyn 41 Lyn 44 Lyn

Nearby	Lalande 21185 WISE 1405+5534 Gliese 412 Groombridge 1618 Gliese 338 GJ 1151 ξ (Alula Aus) Gliese 450 Gliese 424 Groombridge 1830

Other	R S W Winnecke 4

List

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