PB 91

All names: Gaia DR3 1529693318761014912, SDSS J131012.29+444728.40, WD 1307+450, SDSS J131012.29+444728.4, Gaia DR2 1529693318761014912, SDSS J131012.28+444728.3, SDSS J131012.32+444728.1, SDSS J131012.29+444728.3, Gaia EDR3 1529693318761014912, GALEX J131012.3+444728, USNO-A2.0 1275-08204648, ** SLN 26A, PB 91, USNO-B1.0 1347-00241059, WDS J13102+4447A, LAMOST J131012.28+444728.3

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Genest-Beaulieu & Bergeron 2019 (spectroscopic) Genest-Beaulieu & Bergeron 2019 (photometric) MWDD HE Gaia DR2 Stilism Koester & Kepler 2015 Vincent et al. 2024 Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 13 10 12.32 (0.06) 13 10 12.29 13 10 12.32 (0.08) 13 10 12.32 13 10 12.28 (0.06) 13 10 12.29 13 10 11.98 13 10 12.29
Declination 44 47 28.15 (0.06) 44 47 28.37 44 47 28.16 (0.07) 44 47 28.15 44 47 28.45 (0.06) 44 47 28.38 44 47 21.12 44 47 28.38
Spectral type DB DB DB DB DB DB DB
Effective temperature [K] 12656.0 12110.0 11888.0 11722.0 (67) 11862.0 (227) 12857.0 (72) 12857.0 (216)
log(g) [cgs] 8.36 8.18 8.15 8.00 (0) 8.17 (0.03) 8.64 (0.07) 8.81 (0.07)
Mass [M] 0.813 0.697 0.679 0.686 (0.02) 1.1 (0.02)
log(Luminosity) [L]
Cooling age [Gyr] 0.4993
log(H/He) -5.343 <-5.96
log(C/He)
log(Ca/He) <-10.45
log(Ca/H)
log(N/He)
log(O/He)
log(Na/He)
log(Mg/He)
log(Al/He)
log(Si/He)
log(P/He)
log(S/He)
log(Cl/He)
log(Sc/He)
log(Ti/He)
log(V/He)
log(Cr/He)
log(Mn/He)
log(Fe/He)
log(Co/He)
log(Ni/He)
log(Cu/He)
log(Zn/He)
log(Ga/He)
log(Ge/He)
log(Sr/He)
Parallax [mas] 6.79 (0.09) 6.71 (0.1) 6.79 6.79 (0.09)
Distance [pc] 147.25 (2) 149.13 (3) 160.00 147.25 147.25 (2)
Composition He
Proper motion (right ascension) [mas/yr] 30.36786704 (0.07) 30.40893953 (0.1) 30.368 (0.07) 31.8
Proper motion (declination) [mas/yr] -18.89255206 (0.08) -18.72564999 (0.1) -18.893 (0.08) -21.2
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 17.90
V magnitude
R magnitude 18.10
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 17.88 (0.01) 17.88 (0.01) 17.87 (0.01) 17.87 17.88 (0.01)
g magnitude 17.83 (0.006) 17.83 (0.006) 17.82 (0.02) 17.82 17.84 (0.02)
r magnitude 18.03 (0.007) 18.03 (0.007) 18.01 (0.01) 18.01 18.02 (0.01)
i magnitude 18.23 (0.009) 18.23 (0.009) 18.22 (0.02) 18.22 18.23 (0.02)
z magnitude 18.50 (0.02) 18.50 (0.03) 18.47 (0.03) 18.47 18.49 (0.03)
G magnitude 17.90 (0.006) 17.94 17.90 17.90 (0.003)
BP magnitude 17.89 (0.006) 17.86
RP magnitude 17.92 (0.01) 17.92
Pan g magnitude 17.86 (0.006)
Pan r magnitude 18.03 (0.002)
Pan i magnitude 18.23 (0.005)
Pan z magnitude 18.42 (0.01)
Pan y magnitude 18.56 (0.02)
E(B-V) 0.009

* 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.