Gamma Comae Berenices — Double Star in Coma Berenices
Observe
1Physical Properties
Magnitude
4.36
Spectral Type
K1IIIFe0.5
giant
Star Color
Orange
(B-V 1.13)
Distance
1,087 ly
2Position & Identifiers
RA
12h 26m 56.3s
Dec
+28° 16' 06.0"
Constellation
Coma Berenices
(Com)
HR
4737
HIP
60742
HD
108381
SAO
82313
Bayer
Gamma
Flamsteed
15 Com
Querying VizieR catalog...
3How easy to split?
Primary
4.4 mag
Companion
12.0 mag
Separation
16.1″
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| Telescope | Bortle 3 | Bortle 4 | Bortle 5 |
|---|---|---|---|
| 80 mm refractor 80mm refr. | V. hard+ | V. hard+ | V. hard |
| 150 mm Newton 150mm Newt. | Medium | Hard+ | Hard |
| Celestron C8 (203 mm SCT) C8 203mm | Medium+ | Medium | Hard+ |
Easy
Medium
Hard
Very hard
Impossible
Bortle 3 = rural · 4 = outer suburbs · 5 = suburbs
4Visibility
Set a location in User Settings to see visibility data.
Best season
Feb – Apr
(peak: Mar)
5Multiple Star System
Separation
16.1″
Companion Mag
12.0
Companion Sp
M:
Position Angle
208°
Star Colors
A: Orange
B: Red
Discoverer
SMR 58
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
A: 4.4 · B: 12.0 · Sep: 16.1″ · PA: 208° · N up, E right
Resolved · Rayleigh: 2.3″ · Dawes: 1.9″ · Eff: 2.3″
Explore
7
Size Comparison
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8
Compare Stars
9
Spectral Classification
10
Hertzsprung-Russell Diagram
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11
Stellar Lifecycle
12
Blackbody Spectrum
13
Stellar Absorption Spectrum
Simulated absorption spectrum based on spectral type. Hover over lines to identify elements.
14
Stellar Fusion
Discover
15Stellar Notes
Mel 111 #129 (Coma).
16
Light Travel Time Machine
17
Relativistic Travel
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Other targets within a few degrees — pan your scope a little and keep exploring.
Visibility scores assume a 150 mm Newton at Bortle 4.
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