HR 6806

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HR 6806
Observation data
Epoch 2000      Equinox 2000
Constellation Hercules
Right ascension 18h 09m 37.4s
Declination +38° 27' 28"
Apparent magnitude (V) 6.40
Characteristics
Spectral type K2 V
U−B color index 0.59
B−V color index 0.87
V−R color index 0.52
R−I color index 0.46
Variable type None
Astrometry
Radial velocity (Rv) -19.2 km/s
Proper motion (μ) RA: -316.17 mas/yr
Dec.: -468.33 mas/yr
Parallax (π) 90.11 ± 0.53 mas
Distance 36.2 ± 0.2 ly
(11.10 ± 0.07 pc)
Absolute magnitude (MV) 6.17
Details
Age (5.8–7.1) × 109[1] years
Other designations
BD+38 3095, Giclas 205-005, GJ 706, HD 166620, HIP 88972, HR 6806, LHS 3363, NStars 1809+3827, YPC 4171

HR 6806 is a solitary, orange, main sequence (K2 V) star located thirty-six light-years away, in the constellation Hercules.

References[edit]

  1. ^ Mamajek, Eric E.; Hillenbrand, Lynne A. (November 2008). "Improved Age Estimation for Solar-Type Dwarfs Using Activity-Rotation Diagnostics". The Astrophysical Journal 687 (2): 1264–1293. arXiv:0807.1686. Bibcode:2008ApJ...687.1264M. doi:10.1086/591785. 

External links[edit]