Astronomy:T Crucis

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Short description: Variable star in the constellation Crux
T Crucis
Observation data
Equinox J2000.0]] (ICRS)
Constellation Crux
Right ascension  12h 21m 21.12807s[1]
Declination −62° 16′ 53.8790″[1]
Apparent magnitude (V) 6.32 - 6.83[2]
Characteristics
Evolutionary stage F6-G2Ib[3]
Variable type δ Cep[2]
Astrometry
Proper motion (μ) RA: −10.915[1] mas/yr
Dec.: −0.471[1] mas/yr
Parallax (π)1.2106 ± 0.0142[1] mas
Distance2,690 ± 30 ly
(826 ± 10 pc)
Absolute magnitude (MV)−3.49[4]
Details
Mass7.2[1] M
Radius55[1] R
Luminosity2,601[1] L
Surface gravity (log g)1.52[1] cgs
Temperature4,676[1] K
Metallicity [Fe/H]0.09[4] dex
Age57[4] Myr
Other designations
CD−61°3428, HD 107447, HIP 60259, SAO 251861[5]
Database references
SIMBADdata
Light curve of T Crucis recorded by NASA's Transiting Exoplanet Survey Satellite (TESS)

T Crucis is a star in the constellation Crux. A Cepheid variable, its apparent magnitude ranges from 6.32 to 6.83 over 6.73331 days.[3] It is a yellow-white supergiant that pulsates between spectral types F6Ib and G2Ib.[3] The radius is 55 times that of the Sun.

References

  1. Jump up to: 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 Vallenari, A. et al. (2022). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy & Astrophysics. doi:10.1051/0004-6361/202243940  Gaia DR3 record for this source at VizieR.
  2. Jump up to: 2.0 2.1 Samus', N. N; Kazarovets, E. V; Durlevich, O. V; Kireeva, N. N; Pastukhova, E. N (2017). "General catalogue of variable stars". Astronomy Reports. GCVS 5.1 61 (1): 80. doi:10.1134/S1063772917010085. Bibcode2017ARep...61...80S. 
  3. Jump up to: 3.0 3.1 3.2 Watson, Christopher (4 January 2010). "T Crucis". AAVSO Website. American Association of Variable Star Observers. http://www.aavso.org/vsx/index.php?view=detail.top&oid=10771. Retrieved 12 March 2014. 
  4. Jump up to: 4.0 4.1 4.2 Acharova, I. A. et al. (2012). "Galactic restrictions on iron production by various types of supernovae". Monthly Notices of the Royal Astronomical Society 420 (2): 1590. doi:10.1111/j.1365-2966.2011.20161.x. Bibcode2012MNRAS.420.1590A. 
  5. "V* T Cru". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=V%2A+T+Cru.