103 Her
HIP 88794; 103 Her
DoubleStar
Her
Visible
Level 6
Professional/Research - Requires steady seeing
Physical Properties
Magnitude
3.83
Variable Type
Gamma Cassiopeiae (Eruptive Be Star)
Spectral Type
A0II-III
Star Color
Blue-white
(B-V -0.03)
Distance
337.9 ly
Position & Identifiers
RA
18h 07m 32.6s
Dec
+28° 45' 45.0"
Constellation
Her
HR
6779
HIP
88794
Flamsteed
103 Her
Variable ID
Omi Her
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Visibility
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Multiple Star System
Separation
0.1″
Position Angle
87°
Star Colors
A: Blue-white
Discoverer
STA 2
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 0.1″ · PA: 87° · 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
Gamma Cas 3.81 - 3.9B, 4.1 - 4.2p.
H alpha emission.
Survey Image
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