| Observation data Epoch J2000.0 Equinox J2000.0 |
|
|---|---|
| Constellation | Sextans |
| Right ascension | 10h 00m 47.7213s |
| Declination | –09° 31′ 00.046″ |
| Apparent magnitude (V) | 9.86 |
| Characteristics | |
| Spectral type | K3V |
| Apparent magnitude (B) | 10.93 |
| Apparent magnitude (J) | 7.960 |
| Apparent magnitude (H) | 7.498 |
| Apparent magnitude (K) | 7.323 |
| B−V color index | 1.071 |
| Astrometry | |
| Proper motion (μ) | RA: –373.95 mas/yr Dec.: 25.35 mas/yr |
| Parallax (π) | 23.76 ± 1.61 mas |
| Distance | 137 ± 9 ly (42 ± 3 pc) |
| Absolute magnitude (MV) | 6.74 |
| Details | |
| Mass | 0.74 ± 0.07 M☉ |
| Radius | 0.66 ± 0.09 R☉ |
| Surface gravity (log g) | 4.13 ± 0.26 |
| Luminosity | 0.20 L☉ |
| Temperature | 4746 ± 63 K |
| Metallicity | -0.07 ± 0.03 |
| Rotation | 26.6 ± 1.5 days |
| Rotational velocity (v sin i) | 1.4 km/s |
| Age | 4.5 ± 4 Gyr |
| Other designations | |
| Database references | |
| SIMBAD | data |
| NStED | data |
| Extrasolar Planets Encyclopaedia |
data |
BD-08°2823 is a 9.86 magnitude K-type main sequence star located approximately 137 light years away in the constellation Sextans. This star is smaller, cooler, fainter, and less massive than our Sun. Also its metal content is six-sevenths as much as the Sun. In 2009, two gas giant planets were found in orbit around the star.
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity |
|---|---|---|---|---|
| b | ≥0.045 ± 0.007 MJ | 0.056 ± 0.002 | 5.60 ± 0.02 | 0.15 ± 0.15 |
| c | ≥0.33 ± 0.03 MJ | 0.68 ± 0.02 | 237.6 ± 1.5 | 0.19 ± 0.09 |