Gamma Per
HIP 14328; Gamma Per; 23 Per
DoubleStar
Per
Visible
Level 3
Medium telescope (6-8") - Requires steady seeing
Physical Properties
Magnitude
2.93
Spectral Type
G8. III :SB
Star Color
Orange
(B-V 0.70)
Distance
242.8 ly
Position & Identifiers
RA
03h 04m 47.8s
Dec
+53° 30' 23.0"
Constellation
Per
HR
915
HIP
14328
Bayer
Gamma
Flamsteed
23 Per
Double Cat
2324
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Visibility
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Multiple Star System
Components
3
Component IDs
AB
Separation
55.2″
Companion Mag
10.8
Companion Sp
A2g
Position Angle
329°
Star Colors
A: Orange
B: White
Discoverer
HJ 2170
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 55.2″ · PA: 329° · 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
SKYLAB observations indicate cool star with hot companion. Components Aa, 14.65y, a = 0.159". Physical nature of B, | 11m at 57", uncertain.
5350d, K 12.7 or 21.9k/s, V0 +2.5k/s, msin3i 4.87, asini 648. vsini of secondary 50k/s. Resolved by speckle | interferometry 1981.67, sep. 0.284", 1983.93, sep. 0.27".
Survey Image
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