  | |
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Tucana |
| β1 Tuc (β Tuc AB) | |
| Right ascension | 00h 31m 32.6709s[1] |
| Declination | −62° 57′ 29.587″[1] |
| Apparent magnitude (V) | +4.37[2] |
| β2 Tuc (β Tuc CD) | |
| Right ascension | 00h 31m 33.4223s[1] |
| Declination | −62° 57′ 56.134″[1] |
| Apparent magnitude (V) | +4.54[2] |
| Characteristics | |
| β1 Tuc | |
| Spectral type | B9V[3] |
| β2 Tuc | |
| Spectral type | A2V + A7V[4] |
| Astrometry | |
| β1 Tuc | |
| Parallax (π) | 23.2596 ± 0.2471 mas[5] |
| Distance | 140 ± 1 ly (43.0 ± 0.5 pc) |
| β2 Tuc | |
| Parallax (π) | 19.5923 ± 0.9674 mas[6] |
| Distance | 166 ± 8 ly (51 ± 3 pc) |
| Details[7] | |
| β Tuc A | |
| Mass | 3.84 M☉ |
| β Tuc B | |
| Mass | 0.40 M☉ |
| β Tuc C | |
| Mass | 2.76 M☉ |
| β Tuc D | |
| Mass | 1.94 M☉ |
| Other designations | |
| β1: HD 2884, HIP 2484, SAO 248201 | |
| β2: HD 2885, HIP 2487, SAO 248202 | |
| Database references | |
| SIMBAD | data |
| β1 | |
| β2 | |
Beta Tucanae, Latinized from β Tucanae, is a group of six stars which appear to be at least loosely bound into a system in the constellation Tucana. Three of the stars are luminous and distinct enough to have been given their own Bayer designations, β1 Tucanae through β3 Tucanae.[8] The system is approximately 140 light years from Earth.
- ^ a b c d Cite error: The named reference
hipparcoswas invoked but never defined (see the help page). - ^ a b Cite error: The named reference
hrwas invoked but never defined (see the help page). - ^ Cite error: The named reference
mscwas invoked but never defined (see the help page). - ^ Cite error: The named reference
malkovwas invoked but never defined (see the help page). - ^ Cite error: The named reference
dr2-1was invoked but never defined (see the help page). - ^ Cite error: The named reference
dr2-2was invoked but never defined (see the help page). - ^ Tokovinin, A. (September 2008). "Comparative statistics and origin of triple and quadruple stars". Monthly Notices of the Royal Astronomical Society. 389 (2): 925–938. arXiv:0806.3263. Bibcode:2008MNRAS.389..925T. doi:10.1111/j.1365-2966.2008.13613.x. S2CID 16452670.
- ^ Kaler, Jim. "Beta Tucanae". Stars. University of Illinois. Retrieved 2 May 2015.