Eta Sculptoris

η 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
Distance450 ± 30 ly
(139 ± 10 pc)
Other designations
HR 105, HD 2429,
SAO 192545, HIP 2210

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

  1. ↑ Watson, Christopher (25 August 2009). "Eta Sculptoris". AAVSO Website. American Association of Variable Star Observers. Retrieved 20 July 2014.
  2. ↑ 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.