72 Cyg
HIP 106551; 72 Cyg
DoubleStar
Cyg
Visible
Level 3
Medium telescope (6-8") - Requires steady seeing
Physical Properties
Magnitude
4.90
Spectral Type
K0.5III
Star Color
Orange
(B-V 1.08)
Distance
271.8 ly
Position & Identifiers
RA
21h 34m 46.6s
Dec
+38° 32' 03.0"
Constellation
Cyg
HR
8255
HIP
106551
Flamsteed
72 Cyg
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Visibility
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Multiple Star System
Separation
66.9″
Companion Mag
12.3
Companion Sp
M5
Position Angle
195°
Star Colors
A: Orange
B: Red
Discoverer
DEA 61
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 66.9″ · PA: 195° · 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.
Survey Image
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