G 185-32

G 185-32

A light curve for PY Vulpeculae, adapted from McGraw et al. (1981)[1]
Observation data
Epoch J2000      Equinox J2000
Constellation Vulpecula
Right ascension 19h 37m 13.7502s[2]
Declination +27° 43′ 18.7366″[2]
Apparent magnitude (V) 13.00[3]
Characteristics
Spectral type DA4.0[4]
Apparent magnitude (J) 13.183±0.023[5]
Apparent magnitude (H) 13.213±0.029[5]
Apparent magnitude (K) 13.329±0.043[5]
B−V color index 0.17
Variable type ZZA[3]
Astrometry
Proper motion (μ) RA: 439.597±0.044[2] mas/yr
Dec.: 21.270±0.049[2] mas/yr
Parallax (π)54.7742 ± 0.0288 mas[2]
Distance59.55 ± 0.03 ly
(18.257 ± 0.010 pc)
Absolute magnitude (MV)11.66
Details[6]
Mass0.64±0.10 M☉
Radius0.0120±0.0006 R☉
Surface gravity (log g)8.09±0.05 cgs
Temperature12381±186 K
Other designations
PY Vul, EGGR 277, LSPM J1937+2743, USNO-B1.0 1177-00513805, WD 1935+276, USNO 352, WD 1935+27, NLTT 48026, GJ 1241, PG 1935+276.
Database references
SIMBADdata
ARICNSdata

G 185-32, also known by the variable star designation PY Vulpeculae, is a white dwarf in the constellation Vulpecula. Located approximately 18.3 parsecs (60 ly) distant,[2] the stellar remnant is a ZZ Ceti variable, varying by 0.02 apparent magnitudes from the mean of 13.00.[3]

  1. ^ Cite error: The named reference McGraw was invoked but never defined (see the help page).
  2. ^ a b c d e f Cite error: The named reference Gaia DR2 was invoked but never defined (see the help page).
  3. ^ a b c VSX (4 January 2010). "PY Vulpeculae". AAVSO Website. American Association of Variable Star Observers. Retrieved 19 October 2014.
  4. ^ Cite error: The named reference Gianninas2011 was invoked but never defined (see the help page).
  5. ^ a b c Cite error: The named reference Skrutskie2006 was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference Bédard2017 was invoked but never defined (see the help page).