HD 86264
HD 86264 is a 7th magnitude F-type main sequence star located approximately 224 light years away[1] in the constellation Hydra.
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Hydra |
| Right ascension | 09h 56m 57.839s[1] |
| Declination | –15° 53′ 42.43″[1] |
| Apparent magnitude (V) | 7.42 |
| Characteristics | |
| Spectral type | F7V |
| Apparent magnitude (B) | 7.88 |
| Apparent magnitude (J) | 6.505 |
| Apparent magnitude (H) | 6.344 |
| Apparent magnitude (K) | 6.224 |
| B−V color index | 0.46 |
| Astrometry | |
| Radial velocity (Rv) | +7.1 km/s |
| Proper motion (μ) | RA: –13.13 ± 0.51[1] mas/yr Dec.: –65.74 ± 0.52[1] mas/yr |
| Parallax (π) | 14.54 ± 0.56[1] mas |
| Distance | 224 ± 9 ly (69 ± 3 pc) |
| Absolute magnitude (MV) | 3.12 |
| Details | |
| Mass | 1.42 ± 0.05 M☉ |
| Radius | 1.88 ± 0.12 R☉ |
| Luminosity | 4.72 L☉ |
| Surface gravity (log g) | 4.16 cgs |
| Temperature | 6210 ± 44 K |
| Metallicity [Fe/H] | 0.202 ± 0.04 dex |
| Age | 2.24 Gyr |
| Other designations | |
| Database references | |
| SIMBAD | data |
| Exoplanet Archive | data |
| Extrasolar Planets Encyclopaedia | data |
The survey in 2015 have ruled out the existence of any stellar companions at projected distances above 30 astronomical units.[2]
Planetary system
In August 2009, it was announced that an exoplanet was found in an eccentric orbit.[3]
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
| b | ≥7 ± 1.6 MJ | 2.86 ± 0.07 | 1475 ± 55 | 0.7 ± 0.2 | — | — |
gollark: Oops.
gollark: However, in most scenarios
gollark: Hertz = per second, also.
gollark: The standard is in fact radians per second or just rotations per second. But they're dimensionally the same because SI has radians be dimensionless.
gollark: What is the standard unit?
See also
- List of extrasolar planets
References
- van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653–664. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357.Vizier catalog entry
- Mugrauer, M.; Ginski, C. (12 May 2015). "High-contrast imaging search for stellar and substellar companions of exoplanet host stars". Monthly Notices of the Royal Astronomical Society. 450 (3). doi:10.1093/mnras/stv771. Retrieved 19 June 2020.
- Fischer, Debra; et al. (2009). "Five planets and an independent confirmation of HD 196885 Ab from Lick Observatory". The Astrophysical Journal. 703 (2): 1545–1556. arXiv:0908.1596. Bibcode:2009ApJ...703.1545F. doi:10.1088/0004-637X/703/2/1545.
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