61 Cyg
Observable Double Star
Excellent (69/100)
Sep: 28.7", Companion: mag 6.1
HIP 104214; 61 Cyg
DoubleStar
Cyg
Visible
Level 1
Naked eye / Binoculars - Requires steady seeing
Physical Properties
Magnitude
5.21
Spectral Type
K5V
Star Color
Red
(B-V 1.18)
Distance
11.2 ly
Position & Identifiers
RA
21h 06m 54.6s
Dec
+38° 44' 45.0"
Constellation
Cyg
HR
8085
HIP
104214
Flamsteed
61 Cyg
Variable ID
V1803 Cyg
Double Cat
14636
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Visibility
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Multiple Star System
Components
6
Component IDs
AB
Separation
28.7″
Companion Mag
6.1
Position Angle
154°
Star Colors
A: Red
B: Red
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 28.7″ · PA: 154° · 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
5.19 - 5.27V, 350 - 400d.
AB 5.22 K5V, 6.04 K7V, 722y, a = 24.65". B is HR 8086. Aa x P, 4.9y, a = 0.014". Astrometric measures indicate 3 | invisible companions, periods 6, 7 and 12y. Unresolved by speckle interferometry. Suspected planetary companion not | substantiated.
61 Cyg group.
0.300".
Survey Image
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