Z Apodis
Not to be confused with Zeta 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 |
Distance | approx. 10,000 ly (approx. 3,000 pc) |
Other designations | |
Database references | |
SIMBAD | data |
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 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.
- 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.
- 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.
- 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.
- ↑ 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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