SDSS J044424.97-053436.0

All names: SDSS J044424.97-053436.0, Gaia DR3 3200082520530117248, GALEX J044424.9-053435, Gaia EDR3 3200082520530117248, SDSS J044424.97-053436.1, Gaia DR2 3200082520527900672

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H Gaia DR2 Stilism Vincent et al. 2024 Simbad Kleinman et al. 2013 Vincent et al. 2023
Right ascension 04 44 24.98 (0.1) 04 44 24.98 04 44 24.98 (0.1) 04 44 24.98 04 44 24.96 (0.1) 04 44 24.97
Declination -05 34 35.95 (0.07) -05 34 36.10 -05 34 35.96 (0.1) -05 34 35.95 -05 34 36.20 (0.07) -05 34 36.07
Spectral type DA DA DA DA DA
Effective temperature [K] 19971.0 24468.0 (1070) 24926.0 (148)
log(g) [cgs] 7.76 8.03 (0.05) 7.86 (0.02)
Mass [M] 0.499 0.648 (0.04) 0.566 (0.009)
log(Luminosity) [L]
Cooling age [Gyr] 0.0420
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] 3.47 (0.1) 3.39 (0.2) 3.47 3.47 (0.1)
Distance [pc] 288.27 (1e+01) 294.65 (21) 288.27 288.27 (1e+01)
Composition H
Proper motion (right ascension) [mas/yr] 17.93938008 (0.1) 18.12165766 (0.3) 17.939 (0.1)
Proper motion (declination) [mas/yr] 15.61344283 (0.1) 15.200712 (0.3) 15.613 (0.1)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 17.51 (0.01) 17.50 (0.01) 17.50 (0.02)
g magnitude 17.57 (0.005) 17.57 (0.005) 17.57 (0.02)
r magnitude 17.96 (0.007) 17.96 (0.007) 17.96 (0.01)
i magnitude 18.27 (0.009) 18.27 (0.009) 18.28 (0.02)
z magnitude 18.60 (0.04) 18.60 (0.04) 18.58 (0.04)
G magnitude 17.79 (0.007) 17.80 17.79 17.79 (0.003)
BP magnitude 17.70 (0.007) 17.66
RP magnitude 18.01 (0.02) 18.01
Pan g magnitude 17.60 (0.004)
Pan r magnitude 17.99 (0.004)
Pan i magnitude 18.29 (0.004)
Pan z magnitude 18.57 (0.01)
Pan y magnitude 18.67 (0.02)
E(B-V) 0.019

* 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.