Observation data Epoch J2000.0 Equinox J2000.0 | |
---|---|
Constellation | Centaurus[1] |
Right ascension | 12h 40m 08.781s[2] |
Declination | −44° 18′ 43.27″[2] |
Apparent magnitude (V) | 10.063[3] |
Characteristics | |
Evolutionary stage | main-sequence |
Spectral type | G8V[4] |
B−V color index | 0.697±0.041[1] |
Astrometry | |
Radial velocity (Rv) | 17.46[2] km/s |
Proper motion (μ) | RA: −3.723 mas/yr[2] Dec.: −13.766 mas/yr[2] |
Parallax (π) | 9.4499 ± 0.0158 mas[2] |
Distance | 345.1 ± 0.6 ly (105.8 ± 0.2 pc) |
Details | |
Mass | 0.997±0.08[3] M☉ |
Radius | 0.968[3] R☉ |
Luminosity | 0.91[2] L☉ |
Surface gravity (log g) | 4.46±0.05[3] cgs |
Temperature | 5,732±16[3] K |
Metallicity [Fe/H] | −0.004[2] dex |
Rotation | 20.8±1.2 d[3] |
Rotational velocity (v sin i) | 1.74[3] km/s |
Age | 4.0[3] Gyr |
Other designations | |
Database references | |
SIMBAD | data |
HD 110113, also known as TOI-755, is a star with a pair of orbiting exoplanets in the Centaurus constellation. With an apparent visual magnitude of 10.063,[3] it is much too faint to be viewed with the naked eye. The system is located at a distance from the Solar System of about 346.5 light-years (106.2 parsecs). It is drifting further away with a heliocentric radial velocity of 17 km/s.[2] A planetary system was discovered orbiting this star in 2021.[3]
The spectrum of HD 110113 presents as a G-type main-sequence star, or yellow dwarf, with a stellar classification of G8V.[4] It has an estimated age of four billion years and is spinning slowly with a rotation period of 20.8 days. The star is considered a solar analog, having nearly the same mass and size as the Sun. It radiating 91% of the Sun's luminosity from its photosphere at an effective temperature of 5,732 K. The star displays rotationally-modulated variability that is indicative of star spots.[3]
Osborn2021
was invoked but never defined (see the help page).