9 Cep
HIP 106801; 9 Cep
DoubleStar
Cep
Visible
Level 3
Medium telescope (6-8") - Requires steady seeing
Physical Properties
Magnitude
4.73
Spectral Type
B2Ib
Star Color
Yellow-white
(B-V 0.30)
Position & Identifiers
RA
21h 37m 55.2s
Dec
+62° 04' 55.0"
Constellation
Cep
HR
8279
HIP
106801
Flamsteed
9 Cep
Variable ID
V337 Cep
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Visibility
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Multiple Star System
Separation
35.0″
Companion Mag
10.2
Position Angle
20°
Star Colors
A: Yellow-white
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 35.0″ · PA: 20° · 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
Alpha Cyg 4.69 - 4.78V. H alpha profile var.
Cep OB2.
Survey Image
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