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77 Cyg

HIP 107162; 77 Cyg DoubleStar Cyg Visible Level 6 Professional/Research - Requires steady seeing
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Physical Properties

Magnitude 5.69
Spectral Type A0V
Star Color White (B-V 0.01)
Distance 1,087 ly

Position & Identifiers

RA 21h 42m 22.9s
Dec +41° 04' 38.0"
Constellation Cyg
HR 8300
HIP 107162
Flamsteed 77 Cyg

Visibility

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Multiple Star System

Separation 0.2″
Companion Mag 6.7
Position Angle
Star Colors A: White
Discoverer KUI 108

Size Comparison

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Stellar Lifecycle

Spectral Classification

Hertzsprung-Russell Diagram

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Blackbody Spectrum

Stellar Absorption Spectrum

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Stellar Fusion

Stellar Notes

6.4 B9.5V, 6.6 A0V, 27.2y, a = 0.16". ADS 15251 8.3, 8.3, 11.9m at 2' may be member of same system.
Brighter component of visual double. 1.7290d, K 110.0k/s, V0 -25.5k/s, msin3i 0.956, asini 2.62.
0.017".

Survey Image

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