Nganurganity
HIP 33856; Sigma CMa; 22 CMa
HIP 33856; Sigma CMa; 22 CMa
DoubleStar
CMa
Visible
Level 3
Medium telescope (6-8") - Requires steady seeing
Physical Properties
Magnitude
3.47
Spectral Type
K4III
Star Color
Red
(B-V 1.73)
Distance
1115.1 ly
Position & Identifiers
RA
07h 01m 43.1s
Dec
-27° 56' 05.0"
Constellation
CMa
HR
2646
HIP
33856
Bayer
Sigma
Flamsteed
22 CMa
Variable ID
Sig CMa
Double Cat
5719
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Visibility
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Multiple Star System
Separation
11.1″
Companion Mag
14.2
Position Angle
152°
Star Colors
A: Red
Discoverer
B 126
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 11.1″ · PA: 152° · 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
Lc 3.43 - 3.49V.
Probable member OB group near Omicron CMa; Collinder 121 (#28).
Ultraviolet FeII emission.
Survey Image
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