68 Cyg

HIP 105186; 68 Cyg Star Cygnus (Cyg) Visible Level 2 Small telescope (4")

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Physical Properties

Magnitude 5.00

Range 4.98 - 5.09

Variable Type Ellipsoidal Variable

Spectral Type O7.5III:n((f))

Star Color Blue-white (B-V -0.01)

Position & Identifiers

RA 21h 18m 27.2s

Dec +43° 56' 45.0"

Constellation Cygnus (Cyg)

HR 8154

HIP 105186

Flamsteed 68 Cyg

Variable ID V1809 Cyg

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Spectral Classification

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Stellar Absorption Spectrum

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Stellar Notes

Variable Star

5.05 - 5.075V, 3.390d.

Group/Cluster

Cyg OB7; exciting star of HII region S119. Runaway star from Cep OB2 association?

Spectral

Also classified O8V and O8III((f)). H alpha emission moderately intense 1959 to 1970; absorption increasing 1973-1976.

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