PB 104

All names: PB 104, Gaia DR2 1554775068779587968, Gaia DR3 1554775068779587968, SDSS J131133.00+485812.20, Gaia EDR3 1554775068779587968, GALEX J131132.9+485812, SDSS J131133.00+485812.1, SDSS J131133.00+485812.2, WD 1309+492

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 11 32.85 (0.09) 13 11 33.00 13 11 32.85 (0.1) 13 11 32.85 13 11 33.04 (0.09) 13 11 33.00 13 11 32.42 13 11 33.00
Declination 48 58 12.24 (0.1) 48 58 12.23 48 58 12.24 (0.1) 48 58 12.24 48 58 12.22 (0.1) 48 58 12.20 48 58 05.16 48 58 12.19
Spectral type DB DB DB DB DB DB DB
Effective temperature [K] 13721.0 12257.0 12350.0 12139.0 (154) 12368.0 (389) 13451.0 (176) 12837.0 (278)
log(g) [cgs] 8.90 7.99 8.00 8.00 (0) 8.02 (0.05) 8.62 (0.1) 8.62 (0.3)
Mass [M] 1.141 0.576 0.586 0.596 (0.04) 0.975 (0.1)
log(Luminosity) [L]
Cooling age [Gyr] 0.3538
log(H/He) -6.22 <-5.51
log(C/He)
log(Ca/He) <-9.56
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] 4.68 (0.1) 4.59 (0.2) 4.68 4.68 (0.1)
Distance [pc] 213.55 (6) 217.90 (8) 212.00 213.55 213.55 (6)
Composition He
Proper motion (right ascension) [mas/yr] -117.0610362 (0.1) -117.2892143 (0.2) -117.061 (0.1) -116.4
Proper motion (declination) [mas/yr] 1.546102698 (0.1) 1.771835028 (0.2) 1.546 (0.1) -0.6
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 18.00
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.37 (0.01) 18.37 (0.01) 18.34 (0.01) 18.34 18.38 (0.02)
g magnitude 18.32 (0.006) 18.32 (0.006) 18.32 (0.03) 18.32 18.34 (0.03)
r magnitude 18.55 (0.008) 18.55 (0.008) 18.55 (0.02) 18.55 18.56 (0.02)
i magnitude 18.74 (0.01) 18.74 (0.01) 18.73 (0.02) 18.73 18.74 (0.02)
z magnitude 18.98 (0.05) 18.98 (0.05) 18.97 (0.05) 18.97 18.99 (0.05)
G magnitude 18.42 (0.01) 18.46 18.42 18.42 (0.003)
BP magnitude 18.38 (0.01) 18.34
RP magnitude 18.46 (0.02) 18.43
Pan g magnitude 18.36 (0.01)
Pan r magnitude 18.54 (0.006)
Pan i magnitude 18.74 (0.006)
Pan z magnitude 18.97 (0.02)
Pan y magnitude 19.08 (0.02)
E(B-V) 0.015

* 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.