Epsilon Tucanae

ε Tucanae

Observation data Epoch J2000.0      Equinox J2000.0
Constellation	Tucana
Right ascension	23^h 59^m 55.0^s
Declination	−65° 34′ 38″
Apparent magnitude (V)	+4.49
Distance	373 ± 8[1] ly (114.4 ± 2.4[1] pc)
Spectral type	B9IV
Other designations
HR 9076, HD 224686, CP−66 3819, FK5 903, HIP 118322, SAO 255619, GC 33280

Epsilon Tucanae (ε Tuc, ε Tucanae) is a star in the constellation Tucana.

Epsilon Tucanae is a blue-white B-type subgiant with an apparent magnitude of +4.49. It is approximately 373 light years from Earth.^[2] It is around four times as massive as the Sun.^[3]

It is the last star in the Hipparcos catalog, HIP 118322, from the Hipparcos (1989–1993) astrometry satellite (see List of stars in the Hipparcos Catalogue).

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. "Epsilon Tucanae - Be Star". SIMBAD Astronomical Database. Centre de Données astronomiques de Strasbourg. Retrieved 20 October 2013.
3. Levenhagen, R. S.; Leister, N. V. (2006). "Spectroscopic Analysis of Southern B and Be Stars" (PDF). Monthly Notices of the Royal Astronomical Society. 371: 252–62. arXiv:astro-ph/0606149. Bibcode:2006MNRAS.371..252L. doi:10.1111/j.1365-2966.2006.10655.x.