SDSS J105443.45+042923.6

All names: WD 1052+047, SDSS J105443.45+042923.7, SDSS J105443.45+042923.70, Gaia DR2 3815977527944653056, Gaia EDR3 3815977527944653056, Gaia DR3 3815977527944653056, SDSS J105443.45+042923.6, SDSS J105443.47+042923.7

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 10 54 43.49 (0.2) 10 54 43.45 10 54 43.48 (0.3) 10 54 43.49 10 54 43.45 (0.2) 10 54 43.45 10 54 43.30 10 54 43.45
Declination 04 29 23.74 (0.2) 04 29 23.65 04 29 23.74 (0.3) 04 29 23.74 04 29 23.64 (0.2) 04 29 23.66 04 29 17.88 04 29 23.68
Spectral type DB DB DB DB DB DB DB
Effective temperature [K] 16416.0 18422.0 14755.0 16146.0 (139) 18870.0 (2791) 16930.0 (165) 16263.0 (173)
log(g) [cgs] 8.01 8.13 7.86 7.57 (0.1) 8.26 (0.2) 8.14 (0.1) 7.91 (0.1)
Mass [M] 0.6 0.676 0.512 0.756 (0.1) 0.535 (0.06)
log(Luminosity) [L]
Cooling age [Gyr] 0.1684
log(H/He) <-6.02 <-4.94
log(C/He)
log(Ca/He) <-6.5
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] 3.44 (0.2) 3.30 (0.3) 3.44 3.44 (0.2)
Distance [pc] 290.60 (17) 302.86 (25) 385.00 290.60 290.60 (17)
Composition He
Proper motion (right ascension) [mas/yr] 29.84276189 (0.2) 30.16071064 (0.5) 29.843 (0.2) 31.7
Proper motion (declination) [mas/yr] 6.721817651 (0.2) 6.458523581 (0.5) 6.722 (0.2) 6.4
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.26 (0.01) 18.26 (0.01) 18.28 (0.02) 18.28 18.27 (0.02)
g magnitude 18.38 (0.007) 18.38 (0.007) 18.39 (0.03) 18.39 18.40 (0.03)
r magnitude 18.66 (0.009) 18.66 (0.009) 18.67 (0.01) 18.67 18.67 (0.01)
i magnitude 18.92 (0.01) 18.92 (0.01) 18.91 (0.01) 18.91 18.92 (0.02)
z magnitude 19.22 (0.04) 19.22 (0.04) 19.21 (0.04) 19.21 19.22 (0.04)
G magnitude 18.52 (0.02) 18.55 18.52 18.52 (0.004)
BP magnitude 18.47 (0.02) 18.42
RP magnitude 18.60 (0.05) 18.57
Pan g magnitude 18.41 (0.01)
Pan r magnitude 18.67 (0.004)
Pan i magnitude 18.93 (0.004)
Pan z magnitude 19.14 (0.02)
Pan y magnitude 19.31 (0.03)
E(B-V) 0.024

* 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.