Gaia DR2 850713449448779008

All names: SDSS J104424.52+551311.3, WDJ104424.54+551311.41, Gaia DR2 850713449448779008, WDJ104424.54+551311.40, SDSS J104424.53+551311.4, Gaia EDR3 850713449448779008, SDSS J104424.54+551311.5, Gaia DR3 850713449448779008, J1044+5513, GALEX J104424.5+551312

Parameter Unit Gaia EDR3 Pan-STARRS DR1 Kilic et al. 2025 Caron et al. 2023 MWDD H MWDD HE Gaia DR2 Stilism Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 Vincent et al. 2023
Right ascension 10 44 24.41 (0.1) 10 44 24.41 10 44 24.41 10 44 24.54 (0.1) 10 44 24.41
Declination 55 13 11.00 (0.1) 55 13 11.01 55 13 11.00 55 13 11.40 (0.1) 55 13 11.01
Spectral type DC DC DC DC DC
Effective temperature [K] 6778.0 (54) 6761.0 (52) 7312.0 7058.0 6650.0 (179)
log(g) [cgs] 8.12 (0.02) 8.16 (0.03) 8.40 8.31 8.12 (0.04)
Mass [M] 0.647 (0.02) 0.672 (0.03) 0.847 0.771 0.646 (0.04)
log(Luminosity) [L]
Cooling age [Gyr] 2.3300 3.0190 2.8450
log(H/He) -3.4 -3.4
log(C/He)
log(Ca/He)
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] 10.10 (0.2) 10.42 (0.3) 10.42 (0.3) 10.10 10.10 (0.2) 10.42 (0.3)
Distance [pc] 98.98 (2) 95.97 (3) 96.01 (3) 98.98 98.98 (2) 96.01 (3)
Composition He
Proper motion (right ascension) [mas/yr] -71.82864801 (0.2) -71.83564257 (0.3) -71.829 (0.2) -71.83564257
Proper motion (declination) [mas/yr] -25.03746829 (0.1) -25.56180738 (0.3) -25.037 (0.1) -25.56180738
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.48 (0.03) 19.48 (0.03) 19.48 (0.03)
g magnitude 18.93 (0.009) 18.93 (0.009)
r magnitude 18.81 (0.01) 18.81 (0.01)
i magnitude 18.76 (0.01) 18.76 (0.01)
z magnitude 18.80 (0.04) 18.80 (0.04)
G magnitude 18.77 (0.02) 18.80 18.77 18.77 (0.003) 18.80
BP magnitude 18.95 (0.02) 18.93 18.93
RP magnitude 18.46 (0.02) 18.47 18.47
Pan g magnitude 18.95 (0.005) 18.95 (0.006)
Pan r magnitude 18.79 (0.007) 18.79 (0.009)
Pan i magnitude 18.77 (0.004) 18.77 (0.004)
Pan z magnitude 18.86 (0.01) 18.86 (0.01)
Pan y magnitude 18.96 (0.04) 18.96 (0.03)
E(B-V) 0.008

* 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.