HD 23596 is a 7th magnitude star approximately 170 light years away in the constellation Perseus. The visual luminosity of the star is 2.63 times greater than the Sun.[2] HD 23596 dwarfs the Sun is terms of physical properties; including mass, radius, age, metallicity, and temperature. The spectrum of the star is F8.
Observation data Epoch J2000.0 Equinox J2000.0 | |
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Constellation | Perseus |
Right ascension | 03h 48m 00.37471s[1] |
Declination | +40° 31′ 50.2940″[1] |
Apparent magnitude (V) | 7.24 |
Characteristics | |
Evolutionary stage | subgiant[1] |
Spectral type | F8 |
Astrometry | |
Radial velocity (Rv) | −10.18±0.13[1] km/s |
Proper motion (μ) | RA: 52.742±0.039 mas/yr[1] Dec.: 21.740±0.026 mas/yr[1] |
Parallax (π) | 19.3247 ± 0.0306 mas[1] |
Distance | 168.8 ± 0.3 ly (51.75 ± 0.08 pc) |
Details | |
Mass | 1.2±0.04[2] M☉ |
Radius | 1.53±0.04[2] R☉ |
Luminosity | 2.63±0.03[2] L☉ |
Surface gravity (log g) | 4.14±0.03[2] cgs |
Temperature | 5,953±48[2] K |
Age | 5.0±0.7[2] Gyr |
Other designations | |
Database references | |
SIMBAD | data |
In June 2002, a massive long-period planet orbiting the star was announced.[3] In 2022, the inclination and true mass of HD 23596 b were measured via astrometry.[4]
Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (years) |
Eccentricity | Inclination | Radius |
---|---|---|---|---|---|---|
b | 11.914+0.990 −1.768 MJ |
2.694+0.107 −0.118 |
4.203+0.021 −0.025 |
0.282+0.017 −0.014 |
38.898+15.759 −77.179° |
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Constellation of Perseus | |||||||||||||
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