R Reticuli

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R Reticuli
RRetLightCurve.png
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]
Distance 2,390 ± 90  ly
(730 ± 30  pc)
Details
Mass 0.88+0.04
−0 [7]   M☉
Radius 249+21
−34 [8]   R☉
Luminosity 7,571±1,671 [8]   L☉
Surface gravity (log g)−0.445 [7]   cgs
Temperature 3,410+264
−131 [8]   K
Metallicity [Fe/H]0.55 [7]   dex
Other designations
R Ret, S Ret, HD  29383, HIP  21252, SAO  249053 [9]
Database references
SIMBAD data

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]

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<span class="mw-page-title-main">R Chamaeleontis</span> Variable star in the constellation Chamaeleon

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References

  1. ↑ "Download Data". aavso.org. AAVSO. Retrieved 1 October 2021.
  2. 1 2 3 4 5 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. 1 2 3 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. 1 2 3 VSX; Otero, S. A. (28 January 2011). "R Reticuli". AAVSO Website. American Association of Variable Star Observers . Retrieved 25 May 2014.
  5. 1 2 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. 1 2 3 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. 1 2 3 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. 1 2 3 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. 1 2 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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