Z Apodis

Z Apodis
Observation data
Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation Apus
Right ascension 14h 06m 54.85s[1]
Declination −71° 22′ 16.7″[1]
Apparent magnitude (V) 10.7 to 12.7[2]
Characteristics
U−B color index +0.5 - +1.5[3]
B−V color index +1.5 - +1.75[3]
Variable type RV Tau[4]
Astrometry
Parallax (π)0.32 ± 0.27[5] mas
Distanceapprox. 10,000 ly
(approx. 3,000 pc)
Other designations
Z Aps, TYC 9252-1914-1, 2MASS J14065484-7122167, AAVSO 1358-70A
Database references
SIMBADdata

Z Apodis (Z Aps) is a variable star in the constellation of Apus. It has an apparent visual magnitude which varies between 10.7 and 12.7,[2] over a period of 39.37 days.[4] Although described in the General Catalogue of Variable Stars as a cataclysmic variable star, it appears that it is a pulsating variable star,[3] and has been classed as an RV Tauri variable star, type A.[4]

References

  1. 1 2 Høg, E.; Fabricius, C.; Makarov, V. V.; Urban, S.; Corbin, T.; Wycoff, G.; Bastian, U.; Schwekendiek, P.; Wicenec, A. (2000). "The Tycho-2 catalogue of the 2.5 million brightest stars". Astronomy and Astrophysics. 355: L27. Bibcode:2000A&A...355L..27H. doi:10.1888/0333750888/2862.
  2. 1 2 Z Aps, database entry, The combined table of GCVS Vols I-III and NL 67-78 with improved coordinates, General Catalogue of Variable Stars, Sternberg Astronomical Institute, Moscow, Russia. Accessed on line November 9, 2009.
  3. 1 2 3 Marino, B. F.; Walker, W. S. G. (1991). "Z Apodis is a Pulsating - not a Cataclysmic - Variable Star". Information Bulletin on Variable Stars. 3664: 1. Bibcode:1991IBVS.3664....1M.
  4. 1 2 3 Watson, Christopher (4 January 2010). "Z Apodis". The International Variable Star Index. American Association of Variable Star Observers. Retrieved 28 May 2015.
  5. ↑ Gaia Collaboration (2016). "VizieR Online Data Catalog: Gaia DR1 (Gaia Collaboration, 2016)". VizieR On-line Data Catalog: I/337. Originally published in: Astron. Astrophys. 1337. Bibcode:2016yCat.1337....0G.


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