SDSS J144738.39+034930.4

All names: GALEX J144738.3+034930, Gaia DR3 1157869375651596416, WD 1445+040, SDSS J144738.39+034930.3, Gaia EDR3 1157869375651596416, SDSS J144738.39+034930.4, Gaia DR2 1157869375651596416

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H Gaia DR2 Stilism Simbad White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Kleinman et al. 2004 Vincent et al. 2023
Right ascension 14 47 38.39 (0.3) 14 47 38.39 14 47 38.39 (0.4) 14 47 38.39 (0.3) 14 47 37.73 14 47 38.39 14 47 38.39
Declination 03 49 30.02 (0.2) 03 49 30.44 03 49 30.03 (0.3) 03 49 30.45 (0.2) 03 49 24.60 03 49 30.40 03 49 30.40
Spectral type DA DA DA3.6 DA DA
Effective temperature [K] 11947.0 13267.0 (712) 13880.0 (711)
log(g) [cgs] 7.93 8.00 (0.1) 7.93 (0.1)
Mass [M] 0.565 0.608 (0.07)
log(Luminosity) [L]
Cooling age [Gyr] 0.3447
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] 2.74 (0.3) 2.74 (0.4) 2.74 (0.3)
Distance [pc] 365.59 (40) 364.83 (54) 365.59 (40)
Composition H
Proper motion (right ascension) [mas/yr] 3.795282546 (0.4) 4.06771883 (0.8) 3.795 (0.4) 5.0
Proper motion (declination) [mas/yr] -27.01706272 (0.3) -27.5176836 (0.6) -27.017 (0.3) -34.0
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 23.63 (0.6) 23.63 (0.6) 23.39 23.51 (0.8) 23.39 (0.9)
g magnitude 19.28 (0.01) 19.28 (0.01) 19.28 19.29 (0.02) 19.28 (0.02)
r magnitude 19.52 (0.01) 19.52 (0.01) 19.51 19.52 (0.02) 19.51 (0.02)
i magnitude 19.72 (0.02) 19.72 (0.02) 19.71 19.71 (0.02) 19.71 (0.02)
z magnitude 19.91 (0.1) 19.91 (0.1) 19.87 19.88 (0.09) 19.87 (0.09)
G magnitude 19.40 (0.03) 19.45 19.40 (0.004)
BP magnitude 19.39 (0.03) 19.39
RP magnitude 19.54 (0.05) 19.42
Pan g magnitude 19.33 (0.009)
Pan r magnitude 19.52 (0.01)
Pan i magnitude 19.78 (0.02)
Pan z magnitude 19.94 (0.04)
Pan y magnitude 19.96 (0.05)
E(B-V) 0.032

* 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.