HD 177809

HD 177809 is a 6th magnitude star in the constellation Lyra, approximately 700 light years away from Earth. It is a red giant star of the spectral type M2III, meaning it possesses a surface temperature of under 3,500 kelvins. In comparison to our Sun, it is much larger and brighter, but its surface is cooler.[1]

HD 177809[1]
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Lyra
Right ascension 19h 04m 58.2868s
Declination +30° 44 00.224
Apparent magnitude (V) 6.096
Characteristics
Spectral type M2III
B−V color index +1.549
Astrometry
Radial velocity (Rv)-16 km/s
Proper motion (μ) RA: 21.82 mas/yr
Dec.: -21.53 mas/yr
Parallax (π)4.39 ± 0.60 mas
Distanceapprox. 700 ly
(approx. 230 pc)
Other designations
HD 177809, HR 7238, BD+30°3409, SAO 67781, HIP 93720, GC 26264
Database references
SIMBADdata

References

  1. "Simbad Query Result". Simbad. Retrieved October 17, 2007.


This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.