Delta Tucanae

δ Tucanae

Observation data Epoch J2000.0      Equinox J2000.0
Constellation	Tucana
Right ascension	22^h 27^m 20.0^s
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

1. 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. Bibcode:2005MNSSA..64..172S.
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.