BZ Tucanae
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Star BZ Tucanae |
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| AladinLite | |||||||
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Observation dates equinox : J2000.0 , epoch : J2000.0 |
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| Constellation | Toucan | ||||||
| Right ascension | 00 h 41 m 43.45 s | ||||||
| declination | −73 ° 43 ′ 23.9 ″ | ||||||
| Apparent brightness | 11.68 (11.65 to 12.35) mag | ||||||
| Typing | |||||||
| B − V color index | (0.84) | ||||||
| Spectral class | F8-G1 I. | ||||||
| Variable star type | DCEP | ||||||
| Astrometry | |||||||
| Radial velocity | (124.28 ± 6.72) km / s | ||||||
| Visual absolute brightness M vis | (−6.99) mag | ||||||
| Proper movement | |||||||
| Rec. Share: | (0.63 ± 0.06) mas / a | ||||||
| Dec. portion: | (−1.13 ± 0.04) mas / a | ||||||
| Physical Properties | |||||||
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Other names and catalog entries |
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BZ Tucanae (also HV 821 ) is a star that belongs to the so-called Ultra Long Period Cepheids . It is located in the Small Magellanic Cloud .
The difference to the common Cepheids is the longer period. BZ Tucanae has one of 127.5 days.
Individual evidence
- ↑ a b c d e f BZ Tuc. In: SIMBAD . Center de Données astronomiques de Strasbourg , accessed September 15, 2018 .
- ↑ a b BZ Tuc. In: VSX. AAVSO, accessed September 15, 2018 .
- ↑ a b C. Ngeow et. al: Preliminary Analysis of ULPC Light Curves Using Fourier Decomposition Technique . In: arXiv . Sep 2013. bibcode : 2013arXiv1309.4297N . doi : 10.1109 / IconSpace.2013.6599423 .