| Observation data Epoch J2000 Equinox J2000 |
|
|---|---|
| Constellation | Aquarius |
| Right ascension | 23h 41m 51.53s [1] |
| Declination | –05° 59′ 08.7″ [1] |
| Apparent magnitude (V) | 7.7 |
| Characteristics | |
| Spectral type | G5 |
| B−V color index | 0.648 |
| Astrometry | |
| Radial velocity (Rv) | 11.5 ± 0.2 km/s |
| Proper motion (μ) | RA: -144.88 ± 0.88 [1] mas/yr Dec.: -111.93 ± 0.56 [1] mas/yr |
| Parallax (π) | 23.94 ± 0.74[1] mas |
| Distance | 136 ± 4 ly (42 ± 1 pc) |
| Absolute magnitude (MV) | 8.3 |
| Details | |
| Mass | 1 M☉ |
| Radius | 1.15 R☉ |
| Luminosity | 1.2 L☉ |
| Temperature | 5662 K |
| Metallicity | -0.01 |
| Age | 6.16 G years |
| Other designations | |
| Database references | |
| SIMBAD | data |
| Planet | |
| HD 222582 b | Data Simbad |
| Data ExoPlanet | |
| Data sources: | |
| Hipparcos Catalogue, CCDM (2002), Bright Star Catalogue (5th rev. ed.) |
|
HD 222582 is a magnitude 7.7 star approximately 137 light-years away in the constellation of Aquarius. In 1999, a dense superjovian planet was announced orbiting the star by Steven Vogt. There is a red dwarf companion star in a wide orbit.
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity |
|---|---|---|---|---|
| b | >7.75 MJ | 1.35 | 572 | 0.76 |
| c (unconfirmed) | >0.0513 MJ | 0.12 | 15.144 | 0.5632 |
Contents |
Nearby stars around HD 222582 include: HD 221146 at 12.75 light years, 33 Piscium at 16.35 light years, Gamma Piscium at 23 light years, HD 984 at 25.67 light years, 32 Piscium at 33.5 light years, Alpha Pegasi at 51.1 light years.