HD 222582
From Infogalactic: the planetary knowledge core
Observation data Epoch J2000 Equinox J2000 |
|
---|---|
Constellation | Aquarius |
Right ascension | 23h 41m 51.53s[1] |
Declination | –05° 59′ 08.7″[1] |
Apparent magnitude (V) | 7.685 ± 0.005[2] |
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) | 4.44 ± 0.12[2] |
Details | |
Mass | 1.00[2] M☉ |
Radius | 1.16 ± 0.07[2] R☉ |
Luminosity | 1.2 L☉ |
Surface gravity (log g) | 4.34 ± 0.10[2] cgs |
Temperature | 5776 ± 70[2] K |
Metallicity [Fe/H] | -0.01 ± 0.07[2] dex |
Rotational velocity (v sin i) | 1.5 ± 1.0[2] km/s |
Age | 6.16 Gyr |
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 136 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 in a wide orbit.
Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination | Radius |
---|---|---|---|---|---|---|
b | >7.75 MJ | 1.35 | 572 | 0.76 | — | — |
c (unconfirmed) | >0.0513 MJ | 0.12 | 15.144 | 0.5632 | — | — |
See also
References
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External links
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Coordinates: 23h 41m 51.5299s, −05° 59′ 08.726″
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