HD 143436

HD 143436 also known as HIP 78399, is a G-type star in the constellation Serpens. The temperature, rotation, mass, and abundance of elements in this star are close to properties of the Sun, and for this reason it is a solar twin candidate. The only notable difference is an approximately six times higher abundance of lithium compared to the Sun and most likely a younger age of 3.8 Gyr. The space velocity components of this star are (U, V, W) = (−19.2, −38.6, −7.0) km/s.^[5]

HD 143436

Observation data Epoch J2000      Equinox J2000
Constellation	Serpens[1]
Right ascension	16h 00m 18.83726s[2]
Declination	+00° 08′ 13.2306″[2]
Apparent magnitude (V)	8.03[3]
Characteristics
Spectral type	G3V[4]
B−V color index	0.644[5]
Astrometry
Radial velocity (Rv)	−24.7±0.7[5] km/s
Proper motion (μ)	RA: −136.615[2] mas/yr Dec.: −108.779[2] mas/yr
Parallax (π)	22.3164±0.0456 mas[2]
Distance	146.2 ± 0.3 ly (44.81 ± 0.09 pc)
Absolute magnitude (MV)	4.87±0.10[5]
Details[5]
Mass	1.01±0.02 M☉
Radius	1.01+0.01 −0.04[2] R☉
Luminosity	1.047±0.003[2] L☉
Surface gravity (log g)	4.28±0.12 cgs
Temperature	5,768±43 K
Metallicity [Fe/H]	0.008 dex
Rotational velocity (v sin i)	< 2.6 km/s
Age	3.8±2.9 Gyr
Other designations
BD+00°3441, HIP 78399, SAO 121307, PPM 162138, LTT 14757, NLTT 41715[6]
Database references
SIMBAD	data