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9 Cyg

HIP 96302; 9 Cyg Star Cygnus (Cyg) Visible Level 2 Small telescope (4")
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Physical Properties

Magnitude 5.38
Spectral Type F8III+A0V
Star Color Yellow (B-V 0.55)
Distance 155 ly

Position & Identifiers

RA 19h 34m 50.9s
Dec +29° 27' 47.0"
Constellation Cygnus (Cyg)
HR 7441
HIP 96302
Flamsteed 9 Cyg

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Spectral Classification

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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.

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