22 Cas
Observable Variable Star
Excellent (60/100)
Range: 4.5 - 4.6, Period: 1.2d, Type: Gamma Cas
HIP 3504; 22 Cas
VariableStar
Cas
Visible
Level 2
Small telescope (4") - Monitor brightness changes
Physical Properties
Magnitude
4.54
Variable Type
Gamma Cassiopeiae (Eruptive Be Star)
Spectral Type
B5IIIe
Star Color
Blue-white
(B-V -0.07)
Position & Identifiers
RA
00h 44m 43.5s
Dec
+48° 17' 04.0"
Constellation
Cas
HR
193
HIP
3504
Flamsteed
22 Cas
Variable ID
Omi Cas
Double Cat
622
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Visibility
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Comparison Stars for 22 Cas (4.5–4.6)
Nearby stable stars for estimating brightness (AAVSO)
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Multiple Star System
Separation
34.4″
Companion Mag
11.2
Position Angle
303°
Star Colors
A: Blue-white
B: Yellow-white
Discoverer
BU 231
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 34.4″ · PA: 303° · 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
Gamma Cas, 4.50 - 4.62V, amp. 0.3:R, 1.1679d.
CPM. Companion F8.
1033d. K 19.0, V0 -18.7, asini 268.
Cas-Tau OB1. Member of Pleiades group.
Shell star. Also classified B2V, B4ne, B8III, B2-5IVe.
Survey Image
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