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HIP 21972

HIP 21972 Star Per Visible Level 2 Small telescope (4")
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Physical Properties

Magnitude 5.87
Spectral Type B9III
Star Color White (B-V 0.02)

Position & Identifiers

RA 04h 43m 21.6s
Dec +49° 58' 26.0"
Constellation Per
HR 1493
HIP 21972

Visibility

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Multiple Star System

Separation 21.7″
Companion Mag 13.1
Position Angle 41°
Star Colors A: White
Discoverer KUI 19

Size Comparison

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Stellar Lifecycle

Spectral Classification

Hertzsprung-Russell Diagram

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Blackbody Spectrum

Stellar Absorption Spectrum

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