23 Ori
Observable Double Star
Good (58/100)
Sep: 32.0", Companion: mag 6.8
HIP 25142; 23 Ori
DoubleStar
Ori
Visible
Level 2
Small telescope (4") - Requires steady seeing
Physical Properties
Magnitude
5.00
Spectral Type
B1V
Star Color
Blue-white
(B-V -0.15)
Position & Identifiers
RA
05h 22m 50.0s
Dec
+03° 32' 40.0"
Constellation
Ori
HR
1770
HIP
25142
Flamsteed
23 Ori
Double Cat
3962
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Visibility
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Multiple Star System
Separation
32.0″
Companion Mag
6.8
Position Angle
29°
Star Colors
A: Blue-white
B: White
Discoverer
STF 696
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 32.0″ · PA: 29° · 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
Fixed. Secondary 7.17V, -0.12(B-V), -0.63(U-B), B5Vn, B8nnp or B3V, RV -58k/s, vsini 350k/s, optical.
Ori OB1a.
Rapidly rotating; may become Be star.
Survey Image
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