SDSS J094444.83+402048.2

All names: SDSS J094444.83+402048.2, Gaia EDR3 801501473652373504, Gaia DR3 801501473652373504, WD 0941+405, GALEX J094444.9+402048, Gaia DR2 801501473652373504, SDSS J094444.83+402048.3

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H Gaia DR2 Stilism Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 09 44 44.81 (0.3) 09 44 44.83 09 44 44.81 (0.3) 09 44 44.84 (0.3) 09 44 44.83 09 44 44.76 09 44 44.83
Declination 40 20 48.22 (0.2) 40 20 48.24 40 20 48.22 (0.3) 40 20 48.27 (0.2) 40 20 48.25 40 20 41.28 40 20 48.25
Spectral type DA DA DA DA DA DA
Effective temperature [K] 12495.0 15259.0 (351) 15536.0 (350)
log(g) [cgs] 7.77 7.70 (0.09) 7.71 (0.09)
Mass [M] 0.484 0.484 (0.04)
log(Luminosity) [L]
Cooling age [Gyr] 0.2480
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
log(C/H)
log(N/H)
log(O/H)
log(Na/H)
log(Mg/H)
log(Al/H)
log(Si/H)
log(P/H)
log(S/H)
log(Sc/H)
log(Ti/H)
log(Cr/H)
log(Mn/H)
log(Fe/H)
log(Ni/H)
Parallax [mas] 2.32 (0.3) 2.35 (0.7) 2.32 (0.3)
Distance [pc] 431.48 (62) 426.04 (127) 431.48 (62)
Composition H
Proper motion (right ascension) [mas/yr] -20.23904164 (0.3) -20.49055719 (0.7) -20.239 (0.3) -18.1
Proper motion (declination) [mas/yr] -3.293353392 (0.3) -3.996803623 (0.7) -3.293 (0.3) -2.2
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.60 (0.03) 19.60 (0.03) 19.61 (0.03) 19.61 19.61 (0.03)
g magnitude 19.34 (0.01) 19.34 (0.01) 19.36 (0.02) 19.36 19.36 (0.02)
r magnitude 19.56 (0.02) 19.56 (0.02) 19.59 (0.02) 19.59 19.59 (0.02)
i magnitude 19.89 (0.03) 19.89 (0.03) 19.90 (0.04) 19.90 19.90 (0.03)
z magnitude 20.06 (0.1) 20.06 (0.1) 20.06 (0.1) 20.07 20.06 (0.1)
G magnitude 19.48 (0.03) 19.53 19.48 (0.004)
BP magnitude 19.47 (0.03) 19.49
RP magnitude 19.54 (0.05) 19.58
Pan g magnitude 19.34 (0.02)
Pan r magnitude 19.60 (0.01)
Pan i magnitude 19.89 (0.01)
Pan z magnitude 20.07 (0.03)
Pan y magnitude 20.09 (0.02)
E(B-V) 0.018

* 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.