SDSS J044824.30-011241.8

All names: Gaia DR2 3226632389149772672, GALEX J044824.3-011241, SDSS J044824.30-011241.8, Gaia EDR3 3226632389149772672, SDSS J044824.31-011241.8, SDSS J044824.30-011241.7, Gaia DR3 3226632389149772672, WD 0445-012

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H Gaia DR2 Stilism sdss-wdms.org (29/04/2016) Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013
Right ascension 04 48 24.31 (0.3) 04 48 24.30 04 48 24.31 (0.5) 04 48 24.30 04 48 24.31 (0.3) 04 48 24.30 04 48 24.36 04 48 24.31
Declination -01 12 41.74 (0.2) -01 12 41.73 -01 12 41.74 (0.3) -01 12 41.80 -01 12 41.79 (0.2) -01 12 41.80 -01 12 40.68 -01 12 41.84
Spectral type DA+M DA+M DA+dMe DA+M DA DA+M
Effective temperature [K] 8494.0 19193.0 (1079) 9815.0 (88) 9813.0 (101)
log(g) [cgs] 6.87 7.51 (0.2) 8.53 (0.1) 8.53 (0.1)
Mass [M] 0.181 0.39 (0.08)
log(Luminosity) [L]
Cooling age [Gyr]
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] 1.72 (0.5) 1.83 (0.6) 1.72 (0.5)
Distance [pc] 579.78 (152) 547.71 (179) 765.00 (69) 579.78 (152)
Composition H
Proper motion (right ascension) [mas/yr] 1.882262068 (0.5) 3.403767515 (1) 1.882 (0.5)
Proper motion (declination) [mas/yr] 3.231974996 (0.4) 2.151421416 (0.7) 3.232 (0.4)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity WDMS WDMS WDMS
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.85 (0.03) 19.85 19.85 (0.03) 19.85 (0)
g magnitude 19.79 (0.01) 19.81 19.79 (0.01) 19.81
r magnitude 20.07 (0.02) 20.03 20.07 (0.02) 20.03 (0)
i magnitude 19.88 (0.03) 19.86 19.88 (0.03) 19.86 (0)
z magnitude 19.64 (0.09) 19.53 19.64 (0.09) 19.53 (0)
G magnitude 19.81 (0.05) 19.83 19.81 (0.005)
BP magnitude 19.84 (0.05) 19.89
RP magnitude 19.48 (0.06) 19.43
Pan g magnitude 19.85 (0.01)
Pan r magnitude 20.07 (0.02)
Pan i magnitude 19.90 (0.005)
Pan z magnitude 19.61 (0.02)
Pan y magnitude 19.40 (0.04)
E(B-V) 0.033

* 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.