68 Cyg
HIP 105186; 68 Cyg
Star
Cyg
Visible
Level 2
Small telescope (4")
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
Cyg
HR
8154
HIP
105186
Flamsteed
68 Cyg
Variable ID
V1809 Cyg
Querying VizieR catalog...
Visibility
Set a location in User Settings to see visibility data.
Multiple Star System
Separation
3.8″
Companion Mag
14.0
Position Angle
81°
Star Colors
A: Blue-white
Discoverer
TRN 32
Size Comparison
Querying VizieR for stellar data…
Stellar Lifecycle
Spectral Classification
Hertzsprung-Russell Diagram
Loading HR diagram…
Blackbody Spectrum
Stellar Absorption Spectrum
Simulated absorption spectrum based on spectral type. Hover over lines to identify elements.
Stellar Fusion
Stellar Notes
5.05 - 5.075V, 3.390d.
Cyg OB7; exciting star of HII region S119. Runaway star from Cep OB2 association?
Also classified O8V and O8III((f)). H alpha emission moderately intense 1959 to 1970; absorption increasing 1973-1976.
Survey Image
Loading survey image…