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