FN CMa
HIP 34301
DoubleStar
CMa
Visible
Level 5
Expert level - Requires steady seeing
Physical Properties
Magnitude
5.39
Variable Type
Beta Cephei (Pulsating)
Spectral Type
B0.5IV
Star Color
White
(B-V 0.05)
Position & Identifiers
RA
07h 06m 40.7s
Dec
-11° 17' 39.0"
Constellation
CMa
HR
2678
HIP
34301
Variable ID
FN CMa
Double Cat
5795
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Visibility
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Multiple Star System
Components
3
Component IDs
AB
Separation
0.6″
Companion Mag
6.9
Position Angle
115°
Star Colors
A: White
B: Yellow-white
Discoverer
BU 328
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 0.6″ · PA: 115° · N up, E left
Unresolved · 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 5.36 - 5.39V, 0.12377d?
Component C, 9v at 18" probably optical.
Exciting star of HII region S296; CMa OB1; reflection nebula; member assoc. CMa R1 at 690 pc.
Not generally considered an emission star, but H alpha fluctuations suggest emission.
Survey Image
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