HD 170469
Coordinates: 
18h 29m 10.9812s, +11° 41′ 43.7985″
18h 29m 10.9812s, +11° 41′ 43.7985″| Observation data Epoch J2000 Equinox J2000 | ||
|---|---|---|
| Constellation | Ophiuchus | |
| Right ascension | 18h 29m 10.98124s[1] | |
| Declination | +11° 41′ 43.7985″[1] | |
| Apparent magnitude (V) | 8.21[2] | |
| Characteristics | ||
| Spectral type | G5V + K5V[3] | |
| B−V color index | 0.677±0.014[2] | |
| Absolute magnitude (MV) | 4.23[2] | |
Semi-major axis (a) | 43.1″ | |
| Details | ||
| A | ||
Gyr | ||
| B | ||
| Mass | 0.42[7] M☉ | |
| Database references | ||
| SIMBAD | data | |
HD 170469 is a probable
light years away from the Sun based on parallax. It is drifting closer with a radial velocity of −59 km/s,[3]
and is expected to come to within 49.8 light-years in about 959,000 years.
The primary, component A, is a
The secondary companion, component B, is located at an
projected separation of 2708 AU[4] from the primary, and is orbiting with an estimated period of around 114,000 years.[7]
Planetary system
In 2007, a
radial velocity method, and was independently confirmed in 2014.[4]
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
| b | >0.67 MJ | 2.24 | 1,143 | 0.11 | — | — |
See also
References
- ^ .
- ^ S2CID 119257644.
- ^ S2CID 119260219.
- ^ .
- ^ S2CID 119219062.
- ^ S2CID 54555839. A18.
- ^ S2CID 56066740.
- ^ "HD 170469". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2018-07-13.
- ^ S2CID 7774321.
