Zeta Telescopii

ζ Telescopii
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Telescopium
Right ascension 18h 28m 49.9s
Declination −49° 04' 15"
Apparent magnitude (V) +4.13
Distance127 ± 4 ly
(39 ± 1 pc)
Spectral typeK1III-IV
Other designations
HR 6905, HD 169767,
CD-49 12153, HIP 90568,
SAO 229047, GC 25183

Zeta Telescopii (ζ Tel, ζ Telescopii) is the second-brightest star in the constellation Telescopium. An orange K-type giant of spectral type K1III-IV,[1] with an apparent magnitude of +4.13 and surface temperature of 4720 K, it is around 1.53 times as massive as the Sun and shining with around 512 times its luminosity.[2] It is approximately 127 light-years from Earth.

References

  1. ↑ Gray, R. O.; Corbally, C. J.; Garrison, R. F.; McFadden, M. T.; Bubar, E. J.; McGahee, C. E.; O'Donoghue, A. A.; Knox, E. R. (2006). "Contributions to the Nearby Stars (NStars) Project: spectroscopy of stars earlier than M0 within 40 pc-The Southern Sample". The Astronomical Journal. 132 (1): 161–70. arXiv:astro-ph/0603770Freely accessible. Bibcode:2006AJ....132..161G. doi:10.1086/504637.
  2. ↑ Liu, Y. J.; Zhao, G.; Shi, J. R.; Pietrzyński, G.; Gieren, W. (2007). "The abundances of nearby red clump giants". Monthly Notices of the Royal Astronomical Society. 382 (2): 553–66. Bibcode:2007MNRAS.382..553L. doi:10.1111/j.1365-2966.2007.11852.x.


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