Gomeisa
HIP 36188; Beta CMi; 3 CMi
HIP 36188; Beta CMi; 3 CMi
DoubleStar
CMi
Visible
Level 3
Medium telescope (6-8") - Requires steady seeing
Physical Properties
Magnitude
2.90
Range
2.89 - 2.9
Period
7.4 hours
Variable Type
Slowly Pulsating Be Star
Spectral Type
B8Ve
Star Color
Blue-white
(B-V -0.09)
Distance
161.7 ly
Position & Identifiers
RA
07h 27m 09.0s
Dec
+08° 17' 22.0"
Constellation
CMi
HR
2845
HIP
36188
Bayer
Beta
Flamsteed
3 CMi
Variable ID
Bet CMi
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Visibility
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Light Curve
Multiple Star System
Components
5
Component IDs
AE
Separation
50.3″
Companion Mag
13.0
Position Angle
75°
Star Colors
A: Blue-white
Discoverer
BUP 101
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 50.3″ · PA: 75° · 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
Gamma Cas 2.84 - 2.92V.
Rotationally unstable Be shell star.
Gomeisa; Algomeyla; Gomelza.
Survey Image
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