GP Andromedae

GP Andromedae

The visual band light curve of GP Andromedae, shown over one pulsation cycle, adapted from Szeidl et al.[1]
Observation data
Epoch J2000      Equinox J2000
Constellation Andromeda
Right ascension 00h 55m 18.1501s[2]
Declination +23° 09′ 49.3715″[2]
Apparent magnitude (V) 10.7 variable [3]
Characteristics
Spectral type A3[4]
Apparent magnitude (B) 10.96[5]
Apparent magnitude (G) 10.8282[2]
Apparent magnitude (J) 10.071[6]
Apparent magnitude (H) 10.018[6]
Apparent magnitude (K) 9.993[6]
B−V color index 0.164[5]
Variable type Delta Scuti[4]
Astrometry
Proper motion (μ) RA: 25.77±3.38[2] mas/yr
Dec.: −0.37±2.58[2] mas/yr
Parallax (π)1.9355 ± 0.1468 mas[2]
Distance1,700 ± 100 ly
(520 ± 40 pc)
Details[7]
Mass1.7±0.1 M☉
Radius1.72[2] R☉
Luminosity9.454[2] L☉
Temperature7,718[2] K
Age13±3 Myr
Other designations
2MASS J00551814+2309494, HIP 4322, TYC 1739-1526-1
Database references
SIMBADdata

GP Andromedae (often abbreviated to GP And) is a Delta Scuti variable star in the constellation Andromeda.[4] It is a pulsating star, with its brightness varying with an amplitude of 0.55 magnitudes around a mean magnitude of 10.7.[3]

  1. ^ Cite error: The named reference szeidl was invoked but never defined (see the help page).
  2. ^ a b c d e f g h i 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 Cite error: The named reference Zhou2011 was invoked but never defined (see the help page).
  4. ^ a b c Cite error: The named reference GCVS was invoked but never defined (see the help page).
  5. ^ a b Cite error: The named reference TYCHO was invoked but never defined (see the help page).
  6. ^ a b c Cite error: The named reference 2MASS Cat was invoked but never defined (see the help page).
  7. ^ Cite error: The named reference Tetzlaff2011 was invoked but never defined (see the help page).