Eta Sculptoris
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Sculptor |
| Right ascension | 00h 27m 55.7s |
| Declination | -33° 00' 26" |
| Characteristics | |
| Variable type | semiregular variable |
| Astrometry | |
| Parallax (π) | 7.22 ± 0.51 mas |
| Distance | 450 ± 30 ly (139 ± 10 pc) |
| Other designations | |
Eta Sculptoris (η Scl, η Sculptoris) is a star in the constellation Sculptor. It is a red M-type red giant approximately 548 light years from Earth. It is classified as a semiregular variable and its apparent magnitude fluctuates between +4.80 and +4.90.[1] It pulsates with multiple periods of 22.7, 23.5, 24.6, 47.3, 128.7 and 158.7 days.[2]
References
- ↑ Watson, Christopher (25 August 2009). "Eta Sculptoris". AAVSO Website. American Association of Variable Star Observers. Retrieved 20 July 2014.
- ↑ Tabur, V.; Bedding, T. R. (2009). "Long-term photometry and periods for 261 nearby pulsating M giants". Monthly Notices of the Royal Astronomical Society 400 (4): 1945–61. arXiv:0908.3228. Bibcode:2009MNRAS.400.1945T. doi:10.1111/j.1365-2966.2009.15588.x.
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