WD 0941-004

All names: Gaia EDR3 3827999107046766720, SDSS J094431.29-003934.0, J0944-0039, GALEX J094431.3-003934, Gaia DR3 3827999107046766720, SDSS J094431.27-003933.7, Gaia DR2 3827999107046766720, SDSS J094431.28-003933.70, SDSS J094431.28-003933.7, WD 0941-004

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Genest-Beaulieu & Bergeron 2019 (spectroscopic) Genest-Beaulieu & Bergeron 2019 (photometric) Coutu et al. 2019 Gaia DR2 Stilism Koester & Kepler 2015 Harris et al. 2003 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 09 44 31.30 (0.1) 09 44 31.28 09 44 31.28 09 44 31.30 (0.1) 09 44 31.30 09 44 31.28 (0.1) 09 44 31.28 09 44 30.38 09 44 31.28
Declination -00 39 34.15 (0.08) -00 39 33.73 -00 39 33.75 -00 39 34.13 (0.1) -00 39 34.15 -00 39 33.76 (0.08) -00 39 33.74 -00 39 30.96 -00 39 33.70
Spectral type DBZ DBZ DB DBZ DBZ DBZ DB_DBZ DB
Effective temperature [K] 14265.0 13307.0 12625.0 (604) 14057.0 (62) 13328.0 (302) 15522.0 (76) 15022.0 (166)
log(g) [cgs] 8.30 8.16 8.13 8.00 (0) 8.20 (0.03) 9.00 (0.009) 8.97 (0.09)
Mass [M] 0.775 0.687 0.6642 0.71 (0.03)
log(Luminosity) [L]
Cooling age [Gyr] 0.4090
log(H/He) -6.029 <-6.0809 <-5.75
log(C/He)
log(Ca/He) -7.8027 (0.08) -7.14 (0.1)
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] 6.24 (0.1) 6.24 6.24 (0.2) 6.24 6.24 (0.1)
Distance [pc] 160.17 (3) 160.28 (4) 160.28 (4) 186.00 160.17 160.17 (3)
Composition He
Proper motion (right ascension) [mas/yr] 15.34705153 (0.1) 15.32812879 (0.3) 15.347 (0.1) 22.3
Proper motion (declination) [mas/yr] -24.41151892 (0.09) -24.55158574 (0.2) -24.412 (0.09) -29.2
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 17.72 (0.01) 17.84 17.72 (0.01) 17.71 (0.02) 17.76 17.72 (0.02)
g magnitude 17.74 (0.005) 17.75 17.74 (0.005) 17.76 (0.02) 17.75 17.76 (0.02)
r magnitude 17.98 (0.007) 17.99 17.98 (0.007) 17.98 (0.02) 17.99 17.98 (0.02)
i magnitude 18.18 (0.008) 18.18 18.18 (0.008) 18.19 (0.02) 18.18 18.19 (0.02)
z magnitude 18.42 (0.03) 18.38 18.42 (0.03) 18.40 (0.03) 18.38 18.40 (0.03)
G magnitude 17.85 (0.009) 17.88 17.85 17.85 (0.003)
BP magnitude 17.84 (0.009) 17.82
RP magnitude 17.92 (0.02) 17.90
Pan g magnitude 17.78 (0.01)
Pan r magnitude 18.00 (0.006)
Pan i magnitude 18.21 (0.008)
Pan z magnitude 18.42 (0.01)
Pan y magnitude 18.55 (0.02)
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.