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HIP 31190

Observable Double Star Good (52/100)

Sep: 24.7", Companion: mag 7.9

HIP 31190 DoubleStar CMa Visible Level 2 Small telescope (4") - Requires steady seeing
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Physical Properties

Magnitude 5.69
Variable Type Beta Cephei (Pulsating)
Spectral Type B2IVe
Star Color Blue (B-V -0.17)

Position & Identifiers

RA 06h 32m 39.0s
Dec -32° 01' 50.0"
Constellation CMa
HR 2397
HIP 31190
Variable ID Var

Visibility

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Multiple Star System

Separation 24.7″
Companion Mag 7.9
Position Angle 258°
Star Colors A: Blue B: White
Discoverer HJ 3869

Eyepiece View

80x Dawes: 1.9″ TFOV: 0.6°
Realistic = true angular size
N E 258° A (5.7) B (7.9)

Sep: 24.7″ · PA: 258° · 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, 5.64 - 5.72V.
Companion 8.70V, -0.08(B-V), -0.40(U-B), A0V, optical?

Survey Image

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