PX Andromedae

PX Andromedae

A visual band light curve of PX Andromedae, adapted from Stanishev et al. (2002)[1]
Observation data
Epoch J2000      Equinox J2000
Constellation Andromeda
Right ascension 00h 30m 05.8084s[2]
Declination +26° 17′ 26.4389″[2]
Apparent magnitude (V) 14.04 – 17.00 variable[3]
Characteristics
Spectral type pec(UG)[3]
Apparent magnitude (B) 11.84[4]
Apparent magnitude (R) 14.69[4]
Apparent magnitude (G) 14.8494[2]
Apparent magnitude (J) 14.652[5]
Apparent magnitude (H) 14.485[5]
Apparent magnitude (K) 14.344[5]
Variable type SW Sex[4]
Astrometry
Proper motion (μ) RA: −10.924±0.081 [2] mas/yr
Dec.: −10.992±0.052[2] mas/yr
Parallax (π)1.2323 ± 0.0437 mas[2]
Distance2,650 ± 90 ly
(810 ± 30 pc)
Orbit
Period (P)3.5112 hours[6]
Other designations
2MASS J00300581+2617264, AAVSO 0024+25, 2XMM J003005.7+261727, PG 0027+260
Database references
SIMBADdata

PX Andromedae (often abbreviated to PX And) is an eclipsing cataclysmic variable star in the constellation Andromeda. It has been classified as a SW Sextantis variable,[4] and its apparent visual magnitude varies between 14.04 and 17.[3]

In 1982, Richard Green et al. listed PX Andromedae as a possible cataclysmic variable, based on spectra taken with the Hale Telescope.[7] Observations in 1989 by Li Yong et al, at the Beijing Observatory detected rapid variations of the star's brightness of up to 0.2 magnitudes, as well as eclipses which occur every 3.5 hours.[8] In 1992 the star was given the variable star designation PX Andromedae.[9]

  1. ^ Cite error: The named reference stanishev was invoked but never defined (see the help page).
  2. ^ a b c d e f 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.
  3. ^ a b c Cite error: The named reference GCVS was invoked but never defined (see the help page).
  4. ^ a b c d Cite error: The named reference SuperWASP was invoked but never defined (see the help page).
  5. ^ a b c Cite error: The named reference 2MASS Cat was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference Thomas2010 was invoked but never defined (see the help page).
  7. ^ Cite error: The named reference Green1982 was invoked but never defined (see the help page).
  8. ^ Cite error: The named reference Li1990 was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference Kazarovets1993 was invoked but never defined (see the help page).