HIP 1921
HIP 1921
DoubleStar
Cas
Visible
Level 6
Professional/Research - Requires steady seeing
Physical Properties
Magnitude
5.57
Range
5.56 - 5.60
Period
25.7 hours
Variable Type
Slowly Pulsating B Star
Spectral Type
B5IV
Star Color
Blue-white
(B-V -0.12)
Distance
815 ly
Position & Identifiers
RA
00h 24m 15.6s
Dec
+52° 01' 12.0"
Constellation
Cas
HR
91
HIP
1921
Double Cat
328
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Visibility
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Light Curve
Multiple Star System
Separation
0.1″
Companion Mag
6.8
Position Angle
144°
Star Colors
A: Blue-white
Discoverer
HU 506
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 Fusion
Stellar Notes
ADS 328A, E?, 5.56 - 5.62V.
ADS 328B, 8.0 at 0.2". However, ADS 328 appeared single in 1953.
ADS 328A, 27.8d, K 30k/s, V0 -18k/s, asini 11.2.
Cas-Tau OB1.
Survey Image
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