Epoch J2000.0 Equinox J2000.0
|Right ascension||20h 23m 51.6206s|
|Declination||+32° 11' 24.619"|
|Apparent magnitude (V)||4.436|
|U−B color index||+1.50|
|B−V color index||+1.33|
|Radial velocity (Rv)||-14.6 km/s|
|Proper motion (μ)||RA: 35.71 mas/yr
Dec.: -5.81 mas/yr
|Parallax (π)||12.77 ± 0.62 mas|
|Distance||260 ± 10 ly
(78 ± 4 pc)
39 Cygni (39 Cyg) is a star in the constellation Cygnus, approximately 260 light years away from Earth. It is an orange star of the spectral type K3III, meaning it has a surface temperature of 3,500 to 5,000 kelvins. It is cooler, but much larger and brighter, than the Sun.
- "Simbad Query Result". Simbad. Retrieved October 15, 2007.
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