V* PY Vul

All names: 19372+2743, 2MASS J19371367+2743186, USNO 352, V* PY Vul, Gaia EDR3 2025389380082340992, PM J19372+2743, LSPM J1937+2743, EGGR 277, NLTT 48026, G185-32, WD 1935+276, uvby98 980185032 V, PG 1935+276, GJ 1241, G185-032, WD 1935+27, Gaia DR3 2025389380082340992, Gaia DR2 2025389380082340992, USNO-B1.0 1177-00513805, GEN# +9.80185032, TIC 213728001, PLX 4609.01, WISEA J193714.10+274319.1, WDJ193713.75+274318.74, CNS5 4867, G 185-32

Parameter Unit Gaia EDR3 Pan-STARRS DR1 O'Brien et al. 2024 McCleery et al. 2020 MWDD H Gaia DR2 Bedard et al. 2017 Stilism Holberg et al. 2016 Limoges et al. 2015 Sion et al. 2014 Giammichele et al. 2012 Gianninas et al. 2011 Holberg et al. 2008 Thompson et al. 2004 Castanheira et al. 2004 Kepler et al. 2000 McGraw et al. 1981 Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 White Dwarf Research Corporation White Dwarf Catalog (McCook & Sion 1999)
Right ascension 19 37 14.28 (0.009) 19 37 14.26 (0.02) 19 37 14.26 (0.02) 19 37 13.68 19 37 14.28 19 37 13.75 (0.009) 19 37 14.26 19 37 12.79
Declination 27 43 19.08 (0.01) 27 43 19.07 (0.02) 27 43 19.07 (0.02) 27 43 15.60 27 43 19.08 27 43 18.73 (0.01) 27 43 19.07 27 43 18.48
Spectral type DA DA DA DA DA DA DA4.2 DA DA DA DA DA4.0 DAV DAV4
Effective temperature [K] 12022.0 (131) 12062.0 (45) 11669.0 12381.0 (186) 12514.0 (195) 12490.0 (187) 12130.0 12631.0 (195) 12630.0 (194) 12470.0 12470.0 12470.0 12470.0 11657.0 (37) 12130.0
log(g) [cgs] 8.05 (0.01) 8.06 (0.005) 8.04 8.09 (0.05) 7.97 (0.05) 8.03 (0.05) 7.98 (0.05) 8.12 (0.05) 8.10 8.10 8.10 8.10 8.01 (0.003) 8.05
Mass [M☉] 0.633 (0.009) 0.626 0.64 (0.1) 0.59 (0.02) 0.62 (0.03) 0.6 (0.03) 0.68 (0.03) 0.612 (0.003)
log(Luminosity) [L☉] -2.45 -2.41
Cooling age [Gyr] 0.4218 0.3300 0.3200
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
log(C/H)
log(N/H)
log(O/H)
log(Na/H)
log(Mg/H)
log(Al/H)
log(Si/H)
log(P/H)
log(S/H)
log(Sc/H)
log(Ti/H)
log(Cr/H)
log(Mn/H)
log(Fe/H)
log(Ni/H)
Parallax [mas] 54.78 (0.02) 54.78 (0.02) 54.77 (0.03) 54.77 (0.03) 55.70 (3) 55.70 (3) 55.70 (3) 55.70 (3) 54.78 54.78 (0.02) 54.77 (0.03) 55.00 (3)
Distance [pc] 18.26 (0.005) 18.25 (0.007) 18.26 (0.01) 18.26 (0.01) 17.90 (0.9) 17.95 (0.9) 18.00 (0.9) 17.95 18.00 (0.8) 18.00 18.00 18.26 18.26 (0.005) 18.26 (0.01) 18.18 (1)
Composition H H H H H H H
Proper motion (right ascension) [mas/yr] 439.5953594 (0.01) 439.5968884 (0.04) 439.595 (0.01) 439.5968884
Proper motion (declination) [mas/yr] 21.46688315 (0.02) 21.2696911 (0.05) 21.467 (0.02) 21.2696911
Variability VAR VAR VAR VAR VAR VAR VAR
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 13.14
V magnitude 12.99 12.98 13.00 13.00 13.00 13.00 12.97
R magnitude 12.70
I magnitude
J magnitude 13.18 (0.02)
H magnitude 13.21 (0.03)
K magnitude 13.33 (0.04)
u magnitude
g magnitude
r magnitude
i magnitude
z magnitude
G magnitude 13.06 (0.0009) 13.08 13.08 13.06 13.06 (0.003) 13.08
BP magnitude 13.07 (0.0009) 13.07 13.07
RP magnitude 13.08 (0.0005) 13.09 13.09
Pan g magnitude 13.03 (0.02)
Pan r magnitude 13.22 (0.001)
Pan i magnitude 13.43 (0.003)
Pan z magnitude 13.62 (0.003)
Pan y magnitude 13.78 (0.005)
E(B-V) 0.001
Period #1 [s] 72.6 72.5 70.9 70.8
Amplitude #1 [mma] 0.7 0.9 1.8
Period #2 [s] 141.9 72.9 72.5 141.4
Amplitude #2 [mma] 1.5 0.4 1.2
Period #3 [s] 215.7 141.2 141.8 215.1
Amplitude #3 [mma] 1.9 0.4 1.6
Period #4 [s] 301.6 141.9 215.7
Amplitude #4 [mma] 1.5 1.4 2.7
Period #5 [s] 370.2 181.9 300.0
Amplitude #5 [mma] 1.3 0.03 1.9
Period #6 [s] 212.8 301.3
Amplitude #6 [mma] 0.5 1.9
Period #7 [s] 215.7 370.1
Amplitude #7 [mma] 1.9 2.2
Period #8 [s] 264.2 560.0
Amplitude #8 [mma] 0.5 1.7
Period #9 [s] 266.2
Amplitude #9 [mma] 0.4
Period #10 [s] 299.8
Amplitude #10 [mma] 1.0
Period #11 [s] 301.4
Amplitude #11 [mma] 1.1
Period #12 [s] 370.2
Amplitude #12 [mma] 1.6
Period #13 [s] 454.6
Amplitude #13 [mma] 0.4
Period #14 [s] 537.6
Amplitude #14 [mma] 0.6
Period #15 [s] 651.7
Amplitude #15 [mma] 0.7

* Constant surface field

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The Montreal White Dwarf Database is produced and maintained by Prof. Patrick Dufour (Université de Montréal) and Dr. Simon Blouin (University of Victoria). Please send database updates, corrections, suggestions or bug reports to patrick.dufour@umontreal.ca.