77 Cyg
HIP 107162; 77 Cyg
DoubleStar
Cyg
Visible
Level 6
Professional/Research - Requires steady seeing
Physical Properties
Magnitude
5.69
Spectral Type
A0V
Star Color
White
(B-V 0.01)
Distance
1087.2 ly
Position & Identifiers
RA
21h 42m 22.9s
Dec
+41° 04' 38.0"
Constellation
Cyg
HR
8300
HIP
107162
Flamsteed
77 Cyg
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Visibility
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Multiple Star System
Separation
0.2″
Companion Mag
6.7
Position Angle
9°
Star Colors
A: White
Discoverer
KUI 108
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 0.2″ · PA: 9° · 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
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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