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66 Oph

HIP 88149; 66 Oph DoubleStar Oph Visible Level 5 Expert level - Requires steady seeing
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Physical Properties

Magnitude 4.64
Range 4.55 - 4.85
Variable Type Gamma Cassiopeiae (Eruptive Be Star)
Spectral Type B2Ve
Star Color Blue-white (B-V -0.03)

Position & Identifiers

RA 18h 00m 15.8s
Dec +04° 22' 07.0"
Constellation Oph
HR 6712
HIP 88149
Flamsteed 66 Oph
Variable ID V2048 Oph

Visibility

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Multiple Star System

Separation 0.1″
Companion Mag 6.5
Position Angle 216°
Star Colors A: Blue-white
Discoverer WSI 65

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

Gamma Cas 4.55 - 4.85V. Also rapid flares to amp. 1.8m possibly from later type companion.
Shell star.
Two spectra.

Survey Image

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