Murzim
Beta CMa
HIP 30324; Beta CMa; 2 CMa
DoubleStar
CMa
Visible
Level 3
Medium telescope (6-8") - Requires steady seeing
Physical Properties
Magnitude
1.98
Variable Type
Beta Cephei (Pulsating)
Spectral Type
B1III
Star Color
Blue
(B-V -0.23)
Distance
492.0 ly
Position & Identifiers
RA
06h 22m 42.0s
Dec
-17° 57' 21.0"
Constellation
CMa
HR
2294
HIP
30324
Bayer
Beta
Flamsteed
2 CMa
Variable ID
Bet CMa
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Visibility
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Multiple Star System
Separation
186.1″
Companion Mag
10.5
Position Angle
340°
Star Colors
A: Blue
Discoverer
BUP 88
Eyepiece View
32x
Dawes: 1.9″
TFOV: 1.6°
Realistic = true angular size
Sep: 186.1″ · PA: 340° · 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
Beta C 1.93 - 2.00V. Prototype star. Multi-periodic: 0.25002246, 0.2513003, 49.17 and 0.23904d, others reported. Beat | periods 49.198, 5.442 and 4.900d. Sp. also var. over 0.25d.
Color excess E(B-V) = +0.01.
Lyman alpha and Lyman beta observed from COPERNICUS.
0.25002246 and 49d.
Murzim; Mirzam; Mirza.
Diam. = 0.00050 - 0.00052".
Survey Image
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