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FV CMa

HIP 34360 DoubleStar CMa Visible Level 5 Expert level - Requires steady seeing
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Physical Properties

Magnitude 5.71
Variable Type Gamma Cassiopeiae (Eruptive Be Star)
Spectral Type B2IVe
Star Color Blue-white (B-V -0.10)

Position & Identifiers

RA 07h 07m 22.6s
Dec -23° 50' 25.0"
Constellation CMa
HR 2690
HIP 34360
Variable ID FV CMa

Visibility

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Multiple Star System

Separation 0.1″
Companion Mag 7.7
Position Angle 201°
Star Colors A: Blue-white
Discoverer CHR 246

Eyepiece View

80x Dawes: 1.9″ TFOV: 0.6°
Realistic = true angular size
N E 201° A (5.7) B (7.7)

Sep: 0.1″ · PA: 201° · 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

Gamma Cas 5.64 - 5.92V.
Sco-Cen assoc.
Equivalent width of H alpha emission increased between 1981 and 1983.

Survey Image

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