WASP-32

WASP-32 (also known as TYC 2-1155-1) is a yellow main-sequence star in the constellation of Pisces. The star was given the formal name Parumleo in January 2020, Latin for small lion and referencing the national animal of Singapore.^[5]

WASP-32 / Parumleo

Observation data Epoch J2000      Equinox
Constellation	Pisces
Right ascension	00h 15m 50.80778s[1]
Declination	01° 12′ 01.5868″[1]
Apparent magnitude (V)	11.26[2]
Characteristics
Evolutionary stage	main sequence star
Spectral type	G0V
B−V color index	-0.2
J−H color index	0.005
J−K color index	0.342
Astrometry
Radial velocity (Rv)	18.41±0.83[3] km/s
Proper motion (μ)	RA: 1.896±0.09[1] mas/yr Dec.: 16.589±0.062[1] mas/yr
Parallax (π)	3.5949±0.0431 mas[1]
Distance	910 ± 10 ly (278 ± 3 pc)
Details
Mass	1.10±0.03[4] M☉
Radius	1.11±0.05[4] R☉
Luminosity	1.5 L☉
Surface gravity (log g)	4.39±0.03[4] cgs
Temperature	6100±100[4] K
Metallicity [Fe/H]	−0.13±0.10[4] dex
Rotational velocity (v sin i)	4.8±0.8[4] km/s
Other designations
Parumleo, Gaia DR2 2546413408888429696, TYC 2-1155-1, 2MASS J00155080+0112016[1]
Database references
SIMBAD	data

Star characteristics

The WASP-32 star is relatively depleted of lithium, which is common for massive stars hosting hot Jupiter planets.^[4]

Planetary system

The "hot Jupiter" class planet WASP-32 b, later named Viculus, was discovered around WASP-32 in 2010.^[4] It was found to orbit the parent star in prograde direction in 2014.^[6]

The follow-up study utilizing transit timing variation analysis, have failed to find any, therefore have excluded existence of other massive planets around WASP-32 as in 2015.^[7]

The WASP-32 planetary system^[8]

Companion (in order from star)	Mass	Semimajor axis (AU)	Orbital period (days)	Eccentricity	Inclination	Radius
b (Viculus)	3.6±0.07 MJ	0.0394±0.0003	2.71865±0.00008	0.018±0.0065	85.3±0.5°	1.18±0.07 RJ