12 Per
HIP 12623; 12 Per
Star
Per
Visible
Level 2
Small telescope (4")
Physical Properties
Magnitude
4.91
Spectral Type
F9V
Star Color
Yellow
(B-V 0.59)
Distance
75.8 ly
Position & Identifiers
RA
02h 42m 14.9s
Dec
+40° 11' 38.0"
Constellation
Per
HR
788
HIP
12623
Flamsteed
12 Per
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Visibility
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Multiple Star System
Separation
0.0″
Companion Mag
5.9
Position Angle
49°
Star Colors
A: Yellow
Discoverer
MCA 8
Eyepiece View
15x
Dawes: 1.9″
TFOV: 3.3°
Realistic = true angular size
Sep: 0.0″ · PA: 49° · 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
0.906y, a = 0.057".
331.0d, K 21.4k/s, V0 -21.5k/s, msin3i 0.744, asini 72.3. Speckle interferometer measurements combined with | spectroscopic yield masses 1.28 and 1.05 solar. Speckle interferometric sep. 0.047", 1981.68.
0.046".
Survey Image
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