12 Com
HIP 60351; 12 Com
DoubleStar
Com
Visible
Level 3
Medium telescope (6-8") - Requires steady seeing
Physical Properties
Magnitude
4.81
Spectral Type
G0III-IV+A3V
Star Color
Yellow
(B-V 0.49)
Distance
233.0 ly
Position & Identifiers
RA
12h 22m 30.3s
Dec
+25° 50' 46.0"
Constellation
Com
HR
4707
HIP
60351
Flamsteed
12 Com
Double Cat
8530
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Visibility
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Multiple Star System
Components
3
Component IDs
AC
Separation
37.0″
Companion Mag
11.8
Companion Sp
A3
Position Angle
59°
Star Colors
A: Yellow
B: White
Discoverer
SHJ 143
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 37.0″ · PA: 59° · 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
AC binary. C, 8.55V, +0.52(B-V), +0.01(U-B), F7V. Component B, 12.52v at 35" optical.
ADS 8530A, 396.49d, K 25.3k/s, V0 +0.5k/s, asini 110. Unresolved by speckle interferometry. vsini of secondary | =<25k/s.
Mel 111 #91 (Coma).
Also classified G5III + A5.
Survey Image
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