HD 89307
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Leo |
| Right ascension | Template:RA[1] |
| Declination | Template:DEC[1] |
| Apparent magnitude (V) | 7.02[2] |
| Characteristics | |
| Spectral type | G0V[3] |
| B−V Template:Engvar | Script error: No such module "val".[2] |
| Astrometry | |
| Radial velocity (Rv) | Script error: No such module "val".[1] km/s |
| Proper motion (μ) | RA: −272.659 mas/yr[1] Dec.: −39.333 mas/yr[1] |
| Parallax (π) | 31.4134±0.0226 mas[1] |
| Distance | Template:Rnd ± Template:Rnd ly (Template:Rnd ± Template:Rnd pc) |
| Absolute magnitude (MV) | 4.57[4] |
| Details[4] | |
| Mass | Script error: No such module "val". Template:Solar mass |
| Radius | Script error: No such module "val".[5] Template:Solar radius |
| Luminosity | Script error: No such module "val".[5] Template:Solar luminosity |
| Surface gravity (log g) | Script error: No such module "val". cgs |
| Temperature | Script error: No such module "val". K |
| Metallicity [Fe/H] | Script error: No such module "val".[2] dex |
| Rotation | Script error: No such module "val". |
| Rotational velocity (v sin i) | Script error: No such module "val". km/s |
| Age | Script error: No such module "val".[2] 6.76[4] Gyr |
| Metallicity [Fe/H] | {{{metal_fe2}}} dex |
| Other designations | |
| Template:Odlist[6] | |
| Database references | |
| SIMBAD | data |
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HD 89307 is a star in the equatorial constellation of Leo. It is too faint to be viewed with the naked eye except under ideal conditions, having an apparent visual magnitude of 7.02.[2] The star is located at a distance of Script error: No such module "convert". from the Sun based on parallax, and is drifting further away with a radial velocity of +23 km/s.[1]
This is an ordinary G-type main-sequence star with a stellar classification of G0V.[3] It is chromospherically inactive and appears older than the Sun with a rotation period of 23.7 days.[4] The star has about the same mass[4] as the Sun and is 8% larger. It is radiating 1.35[5] times the Sun's luminosity from its photosphere at an effective temperature of 5,950 K.[4]
Planetary system
In December 2004, using the radial velocity method, it was found to have a long-period giant planet in orbit around it.[4] The parameters of HD 89307 b were updated in 2012,[7] and in 2023 its inclination and true mass were determined via astrometry.[8]
Template:OrbitboxPlanet begin Template:OrbitboxPlanet
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See also
References
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- ↑ a b c d e f Template:Cite Gaia DR3
- ↑ a b c d e Script error: No such module "Citation/CS1".
- ↑ a b Script error: No such module "Citation/CS1".
- ↑ a b c d e f g Script error: No such module "Citation/CS1".
- ↑ a b c Template:Cite Gaia DR2
- ↑ Template:Cite simbad
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- ↑ Script error: No such module "Citation/CS1".
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External links
- Script error: No such module "citation/CS1".