Delta Tucanae

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δ Tucanae
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Tucana
Right ascension 22h 27m 20.0s
Declination −64° 57′ 59″
Apparent magnitude (V) +4.51
Distance 250 ± 10[1] ly
(77 ± 3 [1] pc)
Spectral type B9.5V
Other designations
HR 8540, HD 212581, CP−65 4044, HIP 110838, SAO 255222, GC 31346, CCDM 22273-6458

Delta Tucanae (δ Tuc, δ Tucanae) is a binary star located in the southwestern corner of the constellation Tucana.[2] It is approximately 250 light years from Earth.[1]

The primary component, Delta Tucanae A, is a blue-white B-type main sequence dwarf with an apparent magnitude of +4.49.[3] The companion star is a G-type main sequence star of magnitude +9.3,[4] 7 arcseconds from the primary.

References[edit]

  1. ^ a b c van Leeuwen, F. (November 2007), "Validation of the new Hipparcos reduction", Astronomy and Astrophysics 474 (2): 653–664, arXiv:0708.1752, Bibcode:2007A&A...474..653V, doi:10.1051/0004-6361:20078357 
  2. ^ Streicher, Magda (2005). "Deepsky Delights". Monthly Notes of the Astronomical Society of Southern Africa 64 (9-10): 172–74. 
  3. ^ "Delta Tucanae - Star in Double System". SIMBAD Astronomical Database. Centre de Données astronomiques de Strasbourg. Retrieved 25 October 2013. 
  4. ^ "CPD-65 4044B - Star in Double System". SIMBAD Astronomical Database. Centre de Données astronomiques de Strasbourg. Retrieved 25 October 2013.