HIP 30840
Observable Double Star
Fair (24/100)
Sep: 1.2", Companion: mag 7.6
HIP 30840
DoubleStar
CMa
Visible
Level 5
Expert level - Requires steady seeing
Physical Properties
Magnitude
5.74
Spectral Type
B4Vnpe
Star Color
Blue
(B-V -0.17)
Distance
543.6 ly
Position & Identifiers
RA
06h 28m 39.2s
Dec
-32° 22' 16.0"
Constellation
CMa
HR
2364
HIP
30840
Variable ID
Var
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Visibility
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Multiple Star System
Separation
1.2″
Companion Mag
7.6
Position Angle
42°
Star Colors
A: Blue
B: White
Discoverer
BU 753
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 1.2″ · PA: 42° · 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
Amp. 0.055b.
Shell star.
Survey Image
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