HD 79498
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Cancer |
| Right ascension | 09h 15m 09.4020s[1] |
| Declination | +23° 22′ 31.979″[1] |
| Apparent magnitude (V) | 8.03[2] |
| Characteristics | |
| Spectral type | G5[2] |
| Astrometry | |
| Radial velocity (Rv) | 19.94±0.14[1] km/s |
| Proper motion (μ) | RA: −127.013[1] mas/yr Dec.: −155.703[1] mas/yr |
| Parallax (π) | 20.5658 ± 0.0198 mas[1] |
| Distance | 158.6 ± 0.2 ly (48.62 ± 0.05 pc) |
| Details[2] | |
| Mass | 1.06 M☉ |
| Temperature | 5740 ± 100 K |
| Metallicity [Fe/H] | 0.24 ± 0.06 dex |
| Age | 2.7 Gyr |
| Other designations | |
| Database references | |
| SIMBAD | data |
HD 79498 is a primary of the star system located 159 light years away in the constellation Cancer. This G5 spectral class star has an apparent magnitude of 8.03 and is about the same size and mass as the Sun. It has a higher than solar abundance of elements other than hydrogen and helium; what astronomers term a metal-rich star.[2]
The secondary star of the star system is the BD+23 2063 B located on the projected separation of the 2900 AU from the primary.[4] It is a red dwarf of spectral class M0.[5]
Planetary system
The McDonald Observatory planet search program discovered planet orbiting primary in 2011 using radial velocity method.[4]
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
| b | ≥1.34 ± 0.07 MJ | 3.13 ± 0.08 | 1966 ± 41 | 0.59 ± 0.02 | — | — |
See also
References
- ^ a b c d e f Vallenari, A.; et al. (Gaia collaboration) (2023). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy and Astrophysics. 674: A1. arXiv:2208.00211. Bibcode:2023A&A...674A...1G. doi:10.1051/0004-6361/202243940. S2CID 244398875. Gaia DR3 record for this source at VizieR.
- ^ a b c d Schneider, Jean, "Planet HD 79498 b", The Extrasolar Planet Encyclopedia, Paris Observatory, retrieved 2012-08-22
- ^ "HD 79498". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 15 August 2012.
- ^ a b c Robertson, Paul; et al. (April 2012), "The McDonald Observatory Planet Search: New Long-period Giant Planets and Two Interacting Jupiters in the HD 155358 System", The Astrophysical Journal, 749 (1): 39, arXiv:1202.0265, Bibcode:2012ApJ...749...39R, doi:10.1088/0004-637X/749/1/39, S2CID 59273311.
- ^ "BD+23 2063B". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 26 October 2012.
