AK Pyxidis

AK Pyxidis

A visual band light curve for AK Pyxidis, plotted from data published by Tabur et al. (2009)[1]
Observation data
Epoch J2000      Equinox J2000
Constellation Pyxis
Right ascension 08h 48m 14.62631s[2]
Declination −28° 38′ 19.6757″[2]
Apparent magnitude (V) 6.09-6.51[3]
Characteristics
Spectral type M5III [3]
Variable type semiregular variable[3]
Astrometry
Proper motion (μ) RA: -10.60 ± 0.29[2] mas/yr
Dec.: −8.05 ± 0.29[2] mas/yr
Parallax (π)4.68 ± 0.41 mas[2]
Distance700 ± 60 ly
(210 ± 20 pc)
Details
Luminosity1500[4] L☉
Temperature3410 K[4] K
Other designations
AK Pyxidis, CD−61° 1428, HD 75306, HIP 43215, SAO 176496.[5]
Database references
SIMBADdata

AK Pyxidis is a semiregular variable star located in the constellation Pyxis. It varies between magnitudes 6.09 and 6.51,[3] making it very faintly visible to the naked eye under excellent dark sky conditions. It has been found to pulsate with periods of 55.5, 57.9, 86.7, 162.9 and 232.6 days simultaneously.[1] Located around 1228 light-years distant, it shines with a luminosity approximately 1500 times that of the Sun and has a surface temperature of 3410 K.[4]

The variability of AK Pyxidis was discovered during the analysis of the Hipparcos satellite data. It was given the variable star designation AK Pyxidis in 1999.[6]

  1. ^ a b Cite error: The named reference tabur was invoked but never defined (see the help page).
  2. ^ a b c d e Cite error: The named reference vanLeeuwen2007 was invoked but never defined (see the help page).
  3. ^ a b c d Cite error: The named reference AAVSOAK was invoked but never defined (see the help page).
  4. ^ a b c Cite error: The named reference Mcdonald was invoked but never defined (see the help page).
  5. ^ Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference Kazarovets was invoked but never defined (see the help page).