HD 205739
| Observation data Epoch J2000.0 Equinox J2000.0 |
|
|---|---|
| Constellation | Piscis Austrinus |
| Right ascension | 21h 38m 08.404s |
| Declination | −31° 44′ 14.96″ |
| Apparent magnitude (V) | 8.56 |
| Characteristics | |
| Spectral type | F7 V |
| B−V color index | 0.546 |
| Astrometry | |
| Radial velocity (Rv) | 9.1 km/s |
| Proper motion (μ) |
RA: 20.94 ± 0.90 mas/yr Dec.: -83.69 ± 0.53 mas/yr |
| Parallax (π) | 9.28 ± 0.84mas |
| Distance | 350 ± 30 ly (108 ± 10 pc) |
| Absolute magnitude (MV) | 3.78 |
| Details | |
| Mass | 1.22 M☉ |
| Radius | 1.33 R☉ |
| Luminosity | 2.3 L☉ |
| Temperature | 6176 ± 45 K |
| Metallicity | +0.19 ± 0.04 |
| Age | 2.84 Gyr years |
| Other designations | |
| Database references | |
| SIMBAD | data |
| Extrasolar Planets Encyclopaedia |
data |
HD 205739 is a yellow-white dwarf (spectral type F7 V). It is about 108 parsecs away from the Sun.
A Jupiter-like planet has recently been detected in a Mercury-like eccentric orbit around this star.
There is a trend in the results which may point to an additional companion further from its star.
Coordinates: 
21h 38m 08.4055s, −31° 44′ 14.945″
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