57 Ori
HIP 27965; 57 Ori
Star
Ori
Visible
Level 2
Small telescope (4")
Physical Properties
Magnitude
5.92
Variable Type
Beta Cephei (Pulsating)
Spectral Type
B2V
Star Color
Blue
(B-V -0.17)
Position & Identifiers
RA
05h 54m 56.7s
Dec
+19° 44' 59.0"
Constellation
Ori
HR
2052
HIP
27965
Flamsteed
57 Ori
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Visibility
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Multiple Star System
Separation
0.0″
Companion Mag
7.8
Position Angle
-1°
Star Colors
A: Blue
Discoverer
OCC9114
Eyepiece View
15x
Dawes: 1.9″
TFOV: 3.3°
Realistic = true angular size
Sep: 0.0″ · PA: -1° · N up, E left
Unresolved · 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
Beta C?, amp. <0.02V.
6.1, 8.3v, sep. 0.0006", 7.9969d, K 70k/s, V0 +21k/s, msin3i 8.84, asini 7.70.
Cas-Tau OB1.
Survey Image
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