HD 143361

HD 143361
Observation data
Epoch J2000      Equinox J2000
Constellation Norma
Right ascension 16h 01m 50.34828s[1]
Declination −44° 26′ 04.3434″[1]
Apparent magnitude (V) 9.20[2]
Characteristics
Spectral type G6 V[3]
Apparent magnitude (B) ~9.93[4]
Apparent magnitude (V) ~9.16[4]
Apparent magnitude (J) 7.905 ± 0.026[5]
Apparent magnitude (H) 7.572 ± 0.038[5]
Apparent magnitude (K) 7.488 ±0.018[5]
B−V color index 0.773[2]
Astrometry
Radial velocity (Rv)−0.56±0.16[1] km/s
Proper motion (μ) RA: −156.561 mas/yr[1]
Dec.: −120.231 mas/yr[1]
Parallax (π)14.5456 ± 0.0202 mas[1]
Distance224.2 ± 0.3 ly
(68.75 ± 0.10 pc)
Details
Mass0.93[6] M☉
Temperature5,420[7] K
Metallicity [Fe/H]0.06[2] dex
Age8.1[7] Gyr
Other designations
CD–44 10569, HD 143361, HIP 78521, SAO 226454.
Database references
SIMBADdata

HD 143361 is a star in the southern constellation Norma. With an apparent visual magnitude of 9.20,[2] this star is too dim to be seen with the naked eye. It is close enough to the Earth that its distance can be determined using parallax measurements, yielding a value of 224 light-years (69 parsecs).[1]

This is a G-type main sequence star with a stellar classification of G6 V.[3] It has around 95% of the Sun's mass and is around 8.1[7] billion years old.

HD 143361 may be a binary star, a red dwarf star has a similar distance and similar proper motions with the primary. If gravitationally bound to HD 143361, the orbit is very wide, as the angular separation of 33 arcminutes translates to a projected separation of 135,000 AU (2.13 light-years).[8]

  1. ^ a b c d e f Cite error: The named reference GaiaDR3 was invoked but never defined (see the help page).
  2. ^ a b c d Cite error: The named reference aaa485_2_571 was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference houk1978 was invoked but never defined (see the help page).
  4. ^ a b Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  5. ^ a b c Cite error: The named reference 2MASS was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference MAGELLAN was invoked but never defined (see the help page).
  7. ^ a b c Cite error: The named reference aaa418_989 was invoked but never defined (see the help page).
  8. ^ Cite error: The named reference multiplicity was invoked but never defined (see the help page).