CI Tauri

CI Tauri

Atacama Large Millimeter Array image of CI Tauri, showing three gaps in the disk
Observation data
Epoch J2000      Equinox J2000
Constellation Taurus
Right ascension 04h 33m 52.01440s[1]
Declination +22° 50′ 30.0941″[1]
Apparent magnitude (V) 13.8[2]
Characteristics
Evolutionary stage T Tauri star
Spectral type K4IVe[2]
Variable type Orion variable
Astrometry
Radial velocity (Rv)+16.2[2] km/s
Proper motion (μ) RA: +8.942 mas/yr[1]
Dec.: –17.079 mas/yr[1]
Parallax (π)6.2376 ± 0.0205 mas[1]
Distance523 ± 2 ly
(160.3 ± 0.5 pc)
Details
Mass0.90±0.02[3] M☉
Radius1.679[4] R☉
Rotation6.6 d[5] or 9 d[6]
Age2-3[3] Myr
Other designations
CI Tau, 2MASS J04335200+2250301, EPIC 247584113[2]
Database references
SIMBADdata
A broad-band optical light curve for CI Tauri, adapted from Roggero et al. (2021)[7]

CI Tauri is a young star, about 2 million years old, located approximately 523 light-years (160 parsecs) away in the constellation Taurus. It is still accreting material from a debris disk at an unsteady pace, possibly modulated by the eccentric[8] orbital motion of an inner planet.[9] The spectral signatures of compounds of sulfur were detected from the disk.[10]

The magnetic field on the surface of CI Tauri, equal to 0.22 T, is close to average for T Tauri stars.[11]

  1. ^ a b c d 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 SIMBAD was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference Flagg2019 was invoked but never defined (see the help page).
  4. ^ Cite error: The named reference NASAExoplanetArchive was invoked but never defined (see the help page).
  5. ^ Cite error: The named reference Biddle2021 was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference Manick2024 was invoked but never defined (see the help page).
  7. ^ Cite error: The named reference Roggero was invoked but never defined (see the help page).
  8. ^ Cite error: The named reference Teyssandier2020 was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference Biddle2018 was invoked but never defined (see the help page).
  10. ^ Cite error: The named reference Gal2019 was invoked but never defined (see the help page).
  11. ^ Cite error: The named reference Sokal2020 was invoked but never defined (see the help page).