WASP-76

WASP-76, also known as BD+01 316, is a yellow-white main sequence star in the constellation of Pisces. A suspected stellar companion at a projected separation of 85 astronomical units was reported in 2014.^[8]

WASP-76

Artist impression of WASP-76b and WASP-76[1]
Observation data Epoch J2000      Equinox J2000
Constellation	Pisces[2]
Right ascension	01h 46m 31.8576s[3]
Declination	02° 42′ 02.030″[3]
Apparent magnitude (V)	9.52[4]
Characteristics
Evolutionary stage	main sequence[5][3]
Spectral type	F7[5]
B−V color index	0.61
J−H color index	0.21
J−K color index	0.3
Astrometry
Radial velocity (Rv)	−1.152±0.0033[6] km/s
Proper motion (μ)	RA: +45.531[3] mas/yr Dec.: −40.593[3] mas/yr
Parallax (π)	5.2899±0.0826 mas[3]
Distance	617 ± 10 ly (189 ± 3 pc)
Details
Mass	1.280±0.028[7] M☉
Radius	1.667±0.020[7] R☉
Luminosity	4.6[3] L☉
Surface gravity (log g)	4.4±0.1[5] cgs
Temperature	6,250±100[5] K
Metallicity [Fe/H]	0.23±0.1[5] dex
Rotational velocity (v sin i)	3.3±0.6[5] km/s
Age	5.3+6.1 −2.9[5] Gyr
Other designations
WASP-76, 2MASS J01463185+0242019, Gaia DR3 2512326349403275520
Database references
SIMBAD	data

After about five billion years, WASP-76 has expanded and become more luminous than at the start of its main sequence life, but most probably has not yet reached the subgiant branch.^[3][5]

Planetary system

Size comparison of WASP-76 b, Jupiter and Saturn

Artistic image of WASP-76b, showing its possible glory effect

The "hot Jupiter" class planet WASP-76b was discovered around WASP-76 in 2013.

Analysis of transit-timing variations suggest an additional planet in the system.^[7]

The WASP-76 planetary system^[7]

Companion (in order from star)	Mass	Semimajor axis (AU)	Orbital period (days)	Eccentricity	Inclination	Radius
b	0.92 MJ	0.0316±0.0002	1.80988132(12)	0.00087±0.00031	87.88±0.16°	1.842±0.024 RJ