Omega Aur
Observable Double Star
Good (55/100)
Sep: 4.7", Companion: mag 8.2
HIP 23179; Omega Aur; 4 Aur
DoubleStar
Aur
Visible
Level 3
Medium telescope (6-8") - Requires steady seeing
Physical Properties
Magnitude
4.94
Spectral Type
A1V
Star Color
White
(B-V 0.04)
Distance
652.3 ly
Position & Identifiers
RA
04h 59m 15.4s
Dec
+37° 53' 25.0"
Constellation
Aur
HR
1592
HIP
23179
Bayer
Omega
Flamsteed
4 Aur
Double Cat
3572
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Visibility
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Multiple Star System
Separation
4.7″
Companion Mag
8.2
Position Angle
5°
Star Colors
A: White
B: Yellow
Discoverer
STF 616
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 4.7″ · PA: 5° · N up, E left
Resolved · Rayleigh: 2.3″ · Dawes: 1.9″ · Eff: 3.1″
Size Comparison
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Stellar Lifecycle
Spectral Classification
Hertzsprung-Russell Diagram
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Blackbody Spectrum
Stellar Absorption Spectrum
Simulated absorption spectrum based on spectral type. Hover over lines to identify elements.
Stellar Notes
Binary.
Pleiades group.
0.021".
Survey Image
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