9 Cyg
HIP 96302; 9 Cyg
Star
Cyg
Visible
Level 2
Small telescope (4")
Physical Properties
Magnitude
5.38
Spectral Type
F8III+A0V
Star Color
Yellow
(B-V 0.55)
Distance
155.3 ly
Position & Identifiers
RA
19h 34m 50.9s
Dec
+29° 27' 47.0"
Constellation
Cyg
HR
7441
HIP
96302
Flamsteed
9 Cyg
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Visibility
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Multiple Star System
Separation
0.0″
Companion Mag
6.4
Companion Sp
F8III
Position Angle
18°
Star Colors
A: Yellow
B: Yellow
Discoverer
WRH 32
Eyepiece View
15x
Dawes: 1.9″
TFOV: 3.3°
Realistic = true angular size
Sep: 0.0″ · PA: 18° · N up, E left
Unresolved · 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
Visual companion CPM.
1717.3d, K 15.7k/s, V0 -17.1k/s, asini 261; vsini of both components =<50k/s; speckle interferometry 1985.5 gives | sep. 0.053"; 1986.46, sep. 0.035" (at 7000 Ang.). Alternate orbit 215.48d, K 14.5k/s, V0 -15.8k/s, asini 40.8. | Morbey and Griffin (1987, ApJ, 317, 343) reject these orbits and claim a period of about 1573d.
Also classified F5V + A and gG + late A.
Survey Image
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