HD 24496
HD 24496 is a 7th magnitude G-type wide binary star and M-type located approximately 67 light years away in the constellation Taurus. This star is smaller, cooler, fainter, and less massive than our Sun. Also its metal content is just 2% greater than the Sun. In 2009, a gas giant planet was discovered of HD 24496 A.
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
| Ab | ≥ 0.32 MJ | 2.59 | 1570 | 0.30 | — | — |
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Taurus |
| Right ascension | 03h 54m 28.0332s [1] |
| Declination | +16° 36′ 57.793″ [1] |
| Apparent magnitude (V) | 6.822 |
| Characteristics | |
| Spectral type | G7V[2] |
| Apparent magnitude (B) | 7.556 |
| Apparent magnitude (R) | 6.4 |
| Apparent magnitude (I) | 6.0 |
| Apparent magnitude (J) | 5.38 |
| Apparent magnitude (H) | 5.10 |
| Apparent magnitude (K) | 4.99 |
| B−V color index | 0.734 |
| V−R color index | 1.2 |
| R−I color index | 0.4 |
| Variable type | none |
| Astrometry | |
| Radial velocity (Rv) | +18.5 km/s |
| Proper motion (μ) | RA: 217.60±0.78[1] mas/yr Dec.: −165.28±0.52[1] mas/yr |
| Parallax (π) | 48.95 ± 0.70[1] mas |
| Distance | 66.6 ± 1.0 ly (20.4 ± 0.3 pc) |
| Absolute magnitude (MV) | 5.244 |
| Details | |
| Mass | 0.95 M☉ |
| Radius | 0.90 R☉ |
| Luminosity | 0.70 L☉ |
| Surface gravity (log g) | 4.56 cgs |
| Temperature | 5572 K |
| Metallicity | +0.01 |
| Rotation | ~35 days |
| Rotational velocity (v sin i) | 0.5±0.5 km/s |
| Age | 4.0±2.7 Gyr |
| Other designations | |
| Database references | |
| SIMBAD | data |
| Exoplanet Archive | data |
| ARICNS | data |
| Extrasolar Planets Encyclopaedia | data |
See also
- HD 34445
- HD 126614
- HD 13931
- Gliese 179
- QS Virginis
- List of extrasolar planets
References
- van Leeuwen, F. (2007). "HIP 18267". Hipparcos, the New Reduction. Retrieved 2010-02-06.
- Koen, C.; Kilkenny, D.; Van Wyk, F.; Marang, F. (2010). "UBV(RI)C JHK observations of Hipparcos-selected nearby stars". Monthly Notices of the Royal Astronomical Society. 403 (4): 1949. Bibcode:2010MNRAS.403.1949K. doi:10.1111/j.1365-2966.2009.16182.x.
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