27 Cyg
HIP 99031; 27 Cyg
DoubleStar
Cyg
Visible
Level 3
Medium telescope (6-8") - Requires steady seeing
Physical Properties
Magnitude
5.36
Spectral Type
K0IV
Star Color
Orange
(B-V 0.85)
Distance
101.9 ly
Position & Identifiers
RA
20h 06m 21.8s
Dec
+35° 58' 21.0"
Constellation
Cyg
HR
7689
HIP
99031
Flamsteed
27 Cyg
Variable ID
Var?
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Visibility
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Multiple Star System
Components
4
Component IDs
AD
Separation
64.9″
Companion Mag
13.8
Position Angle
36°
Star Colors
A: Orange
Discoverer
BUP 204
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 64.9″ · PA: 36° · 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
5.36 - 5.41V.
AD CPM. B, 13.7v at 23"; C, 11.6v at 36".
Survey Image
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