Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Hydra |
Right ascension | 08h 15m 47.9802s [1] |
Declination | +05° 50′ 12.351″ [1] |
Apparent magnitude (V) | 10.35 [2] |
Characteristics | |
Evolutionary stage | main sequence [1] |
Spectral type | G0 [3] |
Astrometry | |
Radial velocity (Rv) | 44.14 [1] km/s |
Proper motion (μ) |
RA: −17.231
[1]
mas/
yr Dec.: +23.875 [1] mas/ yr |
Parallax (π) | 4.8037 ± 0.0099 mas [1] |
Distance | 679 ± 1
ly (208.2 ± 0.4 pc) |
Details | |
Mass | 1.175±0.025 [4] M☉ |
Radius | 1.314±0.015 [4] R☉ |
Luminosity | 2.37±0.01 [1] L☉ |
Surface gravity (log g) | 4.270±0.007 [4] cgs |
Temperature | 6,252±100 [4] K |
Metallicity [Fe/H] | −0.079±0.079 [4] dex |
Rotational velocity (v sin i) | 3.6±0.4 [5] km/s |
Age | 4.1±0.6 [1] Gyr |
Other designations | |
Database references | |
SIMBAD | data |
HAT-P-30, also known as WASP-51, is the primary of a binary star system about 700 light-years away. It is a G-type main-sequence star. HAT-P-30 has a similar concentration of heavy elements compared to the Sun.
The faint stellar companion was detected in 2013 at a projected separation of 3.842±0.007″. [7]
In 2011 a transiting hot Jupiter planet b was independently detected by two teams. [8] [5]
The planetary orbit is strongly misaligned with the equatorial plane of the star, the misalignment angle being equal to 73.5±9.0°. [8]
Since 2022, an additional planet in the system is suspected based on transit timing variations. [4]
Companion (in order from star) |
Mass |
Semimajor axis ( AU) |
Orbital period ( days) |
Eccentricity | Inclination | Radius |
---|---|---|---|---|---|---|
b | 0.723±0.023 MJ | 0.04114±0.00030 | 2.8106006±0.0000004 | 0 | 82.56±0.08 ° | 1.426±0.020 RJ |
Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Hydra |
Right ascension | 08h 15m 47.9802s [1] |
Declination | +05° 50′ 12.351″ [1] |
Apparent magnitude (V) | 10.35 [2] |
Characteristics | |
Evolutionary stage | main sequence [1] |
Spectral type | G0 [3] |
Astrometry | |
Radial velocity (Rv) | 44.14 [1] km/s |
Proper motion (μ) |
RA: −17.231
[1]
mas/
yr Dec.: +23.875 [1] mas/ yr |
Parallax (π) | 4.8037 ± 0.0099 mas [1] |
Distance | 679 ± 1
ly (208.2 ± 0.4 pc) |
Details | |
Mass | 1.175±0.025 [4] M☉ |
Radius | 1.314±0.015 [4] R☉ |
Luminosity | 2.37±0.01 [1] L☉ |
Surface gravity (log g) | 4.270±0.007 [4] cgs |
Temperature | 6,252±100 [4] K |
Metallicity [Fe/H] | −0.079±0.079 [4] dex |
Rotational velocity (v sin i) | 3.6±0.4 [5] km/s |
Age | 4.1±0.6 [1] Gyr |
Other designations | |
Database references | |
SIMBAD | data |
HAT-P-30, also known as WASP-51, is the primary of a binary star system about 700 light-years away. It is a G-type main-sequence star. HAT-P-30 has a similar concentration of heavy elements compared to the Sun.
The faint stellar companion was detected in 2013 at a projected separation of 3.842±0.007″. [7]
In 2011 a transiting hot Jupiter planet b was independently detected by two teams. [8] [5]
The planetary orbit is strongly misaligned with the equatorial plane of the star, the misalignment angle being equal to 73.5±9.0°. [8]
Since 2022, an additional planet in the system is suspected based on transit timing variations. [4]
Companion (in order from star) |
Mass |
Semimajor axis ( AU) |
Orbital period ( days) |
Eccentricity | Inclination | Radius |
---|---|---|---|---|---|---|
b | 0.723±0.023 MJ | 0.04114±0.00030 | 2.8106006±0.0000004 | 0 | 82.56±0.08 ° | 1.426±0.020 RJ |