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103 Her

HIP 88794; 103 Her DoubleStar Her Visible Level 6 Professional/Research - Requires steady seeing
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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

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
N E 87° A (3.8) B (5.8)

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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