CoRoT-16

CoRoT-16 is a solitary star located in the equatorial constellation Scutum. With an apparent magnitude of 16, it requires a powerful telescope to be seen, and is located 2,400 light years away based on parallax.

CoRoT-16

Observation data Epoch J2000      Equinox J2000
Constellation	Scutum[1]
Right ascension	18h 34m 05.919s[2]
Declination	−06° 00′ 09.24″[2]
Apparent magnitude (V)	16.03±0.43[3]
Characteristics
Spectral type	G5 V[4]
B−V color index	+1.82[3]
Astrometry
Proper motion (μ)	RA: +0.937[2] mas/yr Dec.: −8.043[2] mas/yr
Parallax (π)	1.3406±0.0624 mas[2]
Distance	2,400 ± 100 ly (750 ± 30 pc)
Details[4]
Mass	1.098+0.082 −0.078 M☉
Radius	1.19+0.14 −0.13 R☉
Luminosity	0.77[5] L☉
Surface gravity (log g)	4.36±0.10 cgs
Temperature	5,650±100 K
Metallicity [Fe/H]	0.19±0.06 dex
Rotational velocity (v sin i)	0.50±0.50[6] km/s
Age	6.7±2.8[6] Gyr
Other designations
Gaia DR2 4256135160951556480
Database references
SIMBAD	data
Exoplanet Archive	data

Properties

This is an ordinary G-type main sequence star with a similar mass to the Sun, but is 19% larger than the latter. It radiates at 77% the Sun's luminosity from its photosphere at an effective temperature of 5,650 K, which gives it the yellow-hue of a G-type star. CoRoT-16 has a rotation rate of 1/2 km/s, which correlates with an age of 6.7 billion years. As expected with planetary hosts, CoRoT-16 has a high metallicity.

Planetary system

In 2011, the CoRoT mission discovered an unusually eccentric "hot Jupiter".^[4]

The planetary system

Companion (in order from star)	Mass[6]	Semimajor axis[4] (AU)	Orbital period[4] (days)	Eccentricity[6]	Inclination[4]	Radius[6]
b	0.529+0.098 −0.096 MJ	0.0618 ± 0.0015	5.35227±0.00020	0.37+0.11 −0.12	85.01+0.94 −1.20°	1.17+0.14 −0.16 RJ