| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Cetus |
| Right ascension | 00h 15m 36.76947s[1] |
| Declination | −11° 56′ 17.2848″[1] |
| Apparent magnitude (V) | 13.05[2] |
| Characteristics | |
| Spectral type | G8V[3] |
| Astrometry | |
| Radial velocity (Rv) | −3.10±1.32[1] km/s |
| Proper motion (μ) | RA: 15.272(22) mas/yr[1] Dec.: −30.159(14) mas/yr[1] |
| Parallax (π) | 2.7644 ± 0.0199 mas[1] |
| Distance | 1,180 ± 8 ly (362 ± 3 pc) |
| Details[4] | |
| Mass | 0.929+0.053 −0.050 M☉ |
| Radius | 0.923+0.021 −0.020 R☉ |
| Luminosity | 0.680+0.031 −0.029 L☉ |
| Surface gravity (log g) | 4.476±0.030 cgs |
| Temperature | 5457±46 K |
| Metallicity [Fe/H] | 0.099+0.092 −0.089 dex |
| Rotational velocity (v sin i) | 3.20±0.90[5] km/s |
| Age | 6.0+4.3 −3.8 Gyr |
| Other designations | |
| Database references | |
| SIMBAD | data |
WASP-44 is a G-type star about 1,180 light-years (360 parsecs) away in the constellation Cetus that is orbited by the Jupiter-size planet WASP-44b. The star is slightly less massive and slightly smaller than the Sun; it is also slightly cooler, but is more metal-rich. The star was observed by SuperWASP, an organization searching for exoplanets, starting in 2009; manual follow-up observations using WASP-44's spectrum and measurements of its radial velocity led to the discovery of the transiting planet WASP-44b. The planet and its star were presented along with WASP-45b and WASP-46b on May 17, 2011 by a team of scientists testing the idea that hot Jupiters tend to have circular orbits, an assumption that is made when the orbital eccentricity of such planets are not well-constrained.[3]
GaiaDR3 was invoked but never defined (see the help page).SIMBAD was invoked but never defined (see the help page).Anderson2012 was invoked but never defined (see the help page).Addison2019 was invoked but never defined (see the help page).Bonomo2017 was invoked but never defined (see the help page).