R Reticuli

The issue of R Reticuli is widely discussed today as it affects a large number of people around the world. Since its discovery, R Reticuli has sparked growing interest in the scientific community, as well as society in general. Over the years, numerous studies and research have been carried out that seek to fully understand the implications and consequences of R Reticuli in terms of health, society and the environment. In this article, different aspects related to R Reticuli will be examined, providing an overview of its importance and impact today.

R Reticuli

The visual band light curve of R Reticui, from AAVSO data[1]
Observation data
Epoch J2000      Equinox J2000
Constellation Reticulum
Right ascension 04h 33m 32.83070s[2]
Declination −63° 01′ 44.9951″[2]
Apparent magnitude (V) 9.23[3] (6.35 – 14.2)[4]
Characteristics
Evolutionary stage AGB[5]
Spectral type M4e - M7.5e[6]
B−V color index 1.099±0.045[3]
Variable type Mira[6]
Astrometry
Radial velocity (Rv)26.0±4.6[3] km/s
Proper motion (μ) RA: +12.111[2] mas/yr
Dec.: +16.384[2] mas/yr
Parallax (π)1.3622±0.0492 mas[2]
Distance2,390 ± 90 ly
(730 ± 30 pc)
Details
Mass0.88+0.04
−0[7] M☉
Radius249+21
−34[8] R☉
Luminosity7,571±1,671[8] L☉
Surface gravity (log g)−0.445[7] cgs
Temperature3,410+264
−131[8] K
Metallicity 0.55[7] dex
Other designations
R Ret, S Ret, HD 29383, HIP 21252, SAO 249053[9]
Database references
SIMBADdata

R Reticuli, also listed under the duplicate variable star designation S Reticuli,[4] is a Mira variable star in the southern constellation Reticulum. It is an aging red giant star on the asymptotic giant branch[5] with a stellar classification that varies between M4e to M7.5e,[6] being hottest near maximum visual magnitude.[10] The brightness of the star varies between apparent visual magnitudes 6.35 and 14.2[4] with an average period of 281.08±0.58 d.[11] The mean maximum magnitude is 7.57 and the mean minimum magnitude 13.80.[11]

References

  1. ^ "Download Data". aavso.org. AAVSO. Retrieved 1 October 2021.
  2. ^ a b c d e Vallenari, A.; et al. (Gaia collaboration) (2023). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy and Astrophysics. 674: A1. arXiv:2208.00211. Bibcode:2023A&A...674A...1G. doi:10.1051/0004-6361/202243940. S2CID 244398875. Gaia DR3 record for this source at VizieR.
  3. ^ a b c Anderson, E.; Francis, Ch. (2012). "XHIP: An extended hipparcos compilation". Astronomy Letters. 38 (5): 331. arXiv:1108.4971. Bibcode:2012AstL...38..331A. doi:10.1134/S1063773712050015. S2CID 119257644.
  4. ^ a b c VSX; Otero, S. A. (28 January 2011). "R Reticuli". AAVSO Website. American Association of Variable Star Observers. Retrieved 25 May 2014.
  5. ^ a b Whitelock, Patricia A.; et al. (May 2008). "AGB variables and the Mira period-luminosity relation". Monthly Notices of the Royal Astronomical Society. 386 (1): 313–323. arXiv:0801.4465. Bibcode:2008MNRAS.386..313W. doi:10.1111/j.1365-2966.2008.13032.x. S2CID 17676993.
  6. ^ a b c Samus, N. N.; et al. (2017). "General Catalogue of Variable Stars". Astronomy Reports. 5.1. 61 (1): 80–88. Bibcode:2017ARep...61...80S. doi:10.1134/S1063772917010085. S2CID 125853869.
  7. ^ a b c Anders, F.; Khalatyan, A.; Chiappini, C.; Queiroz, A. B.; Santiago, B. X.; Jordi, C.; Girardi, L.; Brown, A. G. A.; Matijevič, G.; Monari, G.; Cantat-Gaudin, T.; Weiler, M.; Khan, S.; Miglio, A.; Carrillo, I.; Romero-Gómez, M.; Minchev, I.; De Jong, R. S.; Antoja, T.; Ramos, P.; Steinmetz, M.; Enke, H. (2019). "Photo-astrometric distances, extinctions, and astrophysical parameters for Gaia DR2 stars brighter than G = 18". Astronomy and Astrophysics. 628: A94. arXiv:1904.11302. Bibcode:2019A&A...628A..94A. doi:10.1051/0004-6361/201935765. S2CID 131780028.
  8. ^ a b c Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR.
  9. ^ "R Ret". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2020-11-18.
  10. ^ Skiff, B. A. (2014). "VizieR Online Data Catalog: Catalogue of Stellar Spectral Classifications (Skiff, 2009- )". VizieR On-line Data Catalog. Bibcode:2014yCat....1.2023S.
  11. ^ a b Vogt, N.; et al. (November 2016). "Determination of Pulsation Periods and Other Parameters of 2875 Stars Classified as MIRA in the All Sky Automated Survey (ASAS)". The Astrophysical Journal Supplement Series. 227 (1): 13. arXiv:1609.05246. Bibcode:2016ApJS..227....6V. doi:10.3847/0067-0049/227/1/6. S2CID 119295645. 6.


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