79 Cyg
Observable Double Star
Good (50/100)
Sep: 149.5", Companion: mag 7.0
HIP 107253; 79 Cyg
DoubleStar
Cyg
Visible
Level 1
Naked eye / Binoculars - Requires steady seeing
Physical Properties
Magnitude
5.65
Spectral Type
A0V
Star Color
White
(B-V 0.00)
Position & Identifiers
RA
21h 43m 25.7s
Dec
+38° 17' 02.0"
Constellation
Cyg
HR
8307
HIP
107253
Flamsteed
79 Cyg
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Visibility
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Multiple Star System
Components
5
Component IDs
AB
Separation
149.5″
Companion Mag
7.0
Position Angle
60°
Star Colors
A: White
Discoverer
S 799
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 149.5″ · PA: 60° · N up, E left
Resolved · 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
AB CPM. B is A0. AP, 5.6 11.0v sep. 1.5" binary.
Survey Image
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