V* PT Vul

All names: EGGR 394, GD 385, 19524+2509, LSPM J1952+2509, PM J19524+2509, WDJ195227.88+250929.18, WD 1950+250, Gaia DR2 2026653131220381824, WD 1950+25, 1950+250, LTT 15808, L 1357-4, Gaia DR3 2026653131220381824, 2MASS J19522787+2509290, Gaia EDR3 2026653131220381824, V* PT Vul, USNO 665, USNO-B1.0 1151-00436126, PLX 4685.02, TIC 11626063

Parameter Unit Gaia EDR3 Pan-STARRS DR1 Leggett et al. 2018 MWDD H Gaia DR2 Bedard et al. 2017 Stilism Limoges et al. 2015 Gianninas et al. 2011 Kepler 1984 Vauclair & Bonazzola 1981 Fontaine et al. 1980 Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 White Dwarf Research Corporation White Dwarf Catalog (McCook & Sion 1999)
Right ascension 19 52 27.88 (0.01) 19 52 27.88 (0.02) 19 52 27.88 19 52 27.88 (0.01) 19 52 27.88 19 52 28.13
Declination 25 09 31.55 (0.02) 25 09 31.47 (0.03) 25 09 31.55 25 09 29.18 (0.02) 25 09 31.47 25 09 18.36
Spectral type DA4.5 DA DA DA DA DA DA4.2 DAV DAV4
Effective temperature [K] 11090.0 (317) 11275.0 11897.0 (181) 11920.0 (182) 12110.0 (185) 11820.0 11820.0 11820.0 11844.0 (52) 11710.0
log(g) [cgs] 7.93 (0.03) 7.96 8.05 (0.05) 8.04 (0.05) 8.12 (0.05) 8.07 8.07 8.07 8.02 (0.005) 8.04
Mass [M] 0.563 (0.02) 0.583 0.63 (0.03) 0.68 (0.03) 0.615 (0.004)
log(Luminosity) [L] -2.54
Cooling age [Gyr] 0.4210 (0.04) 0.4203
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] 21.09 (0.03) 20.97 (0.2) 21.12 (0.04) 26.30 (3) 21.09 21.09 (0.03) 21.12 (0.04) 26.30 (3)
Distance [pc] 47.41 (0.06) 47.69 (0.5) 47.36 (0.08) 38.00 (5) 38.00 (4) 46.00 47.41 47.41 (0.06) 47.36 (0.08) 38.02 (4)
Composition H H H
Proper motion (right ascension) [mas/yr] 5.421254781 (0.02) 5.405546979 (0.05) 5.421 (0.02) 5.405546979
Proper motion (declination) [mas/yr] 148.2373202 (0.03) 148.1669439 (0.05) 148.237 (0.03) 148.1669439
Variability VAR VAR VAR VAR VAR VAR
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 15.13
V magnitude 15.10 15.10 15.10 15.12
R magnitude 15.10
I magnitude
J magnitude 15.27 (0.06)
H magnitude 15.44 (0.1)
K magnitude
u magnitude
g magnitude
r magnitude
i magnitude
z magnitude
G magnitude 15.13 (0.002) 15.15 15.13 15.13 (0.003) 15.15
BP magnitude 15.14 (0.002) 15.14 15.14
RP magnitude 15.13 (0.002) 15.13 15.13
Pan g magnitude 15.09 (0.003)
Pan r magnitude 15.26 (0.001)
Pan i magnitude 15.46 (0.002)
Pan z magnitude 15.66 (0.004)
Pan y magnitude 15.77 (0.003)
E(B-V) 0.004
Period #1 [s] 128.1 126.0 178.9
Amplitude #1 [mma] 3.7 3.3
Period #2 [s] 256.1 172.0 228.8
Amplitude #2 [mma] 11.4 4.3
Period #3 [s] 256.3 192.0 254.3
Amplitude #3 [mma] 10.9 6.5
Period #4 [s] 252.0 273.0
Amplitude #4 [mma] 17.4
Period #5 [s] 546.0 386.4
Amplitude #5 [mma] 11.9
Period #6 [s] 691.5 535.6
Amplitude #6 [mma] 17.4
Period #7 [s] 648.9
Amplitude #7 [mma]

* 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.