HIP 21108
HIP 21108
DoubleStar
Per
Visible
Level 2
Small telescope (4") - Requires steady seeing
Physical Properties
Magnitude
6.26
Spectral Type
B8V
Star Color
White
(B-V 0.04)
Position & Identifiers
RA
04h 31m 24.0s
Dec
+40° 00' 37.0"
Constellation
Per
HR
1424
HIP
21108
Double Cat
3273
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Visibility
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Multiple Star System
Separation
9.0″
Companion Mag
7.2
Position Angle
116°
Star Colors
A: White
B: Yellow-white
Discoverer
STF 552
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 9.0″ · PA: 116° · 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
CPM.
Survey Image
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