TOI-270

TOI-270
Observation data
Epoch J2000      Equinox J2000
Constellation Pictor[1]
Right ascension 04h 33m 39.72001s[2]
Declination −51° 57′ 22.4354″[2]
Apparent magnitude (V) 12.617[3]
Characteristics
Evolutionary stage Main sequence
Spectral type M3.0V[4]
Apparent magnitude (V) 12.617±0.03[3]
Apparent magnitude (R) 12.147±0.05[3]
Apparent magnitude (G) 11.621±0.003[2]
Apparent magnitude (J) 9.099±0.032[3]
Apparent magnitude (H) 8.531±0.073[3]
Apparent magnitude (K) 8.251±0.029[3]
Astrometry
Radial velocity (Rv)25.90±0.37[2] km/s
Proper motion (μ) RA: +83.082 mas/yr[2]
Dec.: −269.803 mas/yr[2]
Parallax (π)44.4899 ± 0.0147 mas[2]
Distance73.31 ± 0.02 ly
(22.477 ± 0.007 pc)
Details[5]
Mass0.386±0.008 M
Radius0.378±0.011 R
Luminosity (bolometric)0.0194±0.0019 L
Surface gravity (log g)4.872±0.026 cgs
Temperature3506±70 K
Metallicity [Fe/H]−0.20±0.12 dex
Other designations
L 231-32, PM J04336-5157, TOI-270, TIC 259377017, 2MASS J04333970-5157222[3]
Database references
SIMBADdata

TOI-270, also known as L 231-32, is a red dwarf star 73.3 light-years (22.5 parsecs) away in the constellation Pictor. It has about 39% the mass and 38% the radius of the Sun, and a temperature of about 3,506 K (3,233 °C; 5,851 °F). TOI-270 hosts a system of three known exoplanets.

  1. ^ "Finding the constellation which contains given sky coordinates". djm.cc. 2 August 2008.
  2. ^ a b c d e f Cite error: The named reference GaiaDR3 was invoked but never defined (see the help page).
  3. ^ a b c d e f g Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  4. ^ Cite error: The named reference Günther2019 was invoked but never defined (see the help page).
  5. ^ Cite error: The named reference VanEylen2021 was invoked but never defined (see the help page).