WD 1438+001

All names: GALEX J144050.3-000058, Gaia EDR3 3651632700307458048, WD 1438+001, Gaia DR3 3651632700307458048, MGC 66996, SDSS J144050.23-000058.9, 2QZ J144050.2-000059, SDSS J144050.24-000058.9, Gaia DR2 3651632700307458048

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H Gaia DR2 Stilism Harris et al. 2003 Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Kleinman et al. 2004 Vincent et al. 2023
Right ascension 14 40 50.23 (0.4) 14 40 50.24 14 40 50.23 (0.4) 14 40 50.24 (0.4) 14 40 50.24 14 40 49.70 14 40 50.24 14 40 50.24
Declination -00 00 59.00 (0.3) -00 00 58.91 -00 00 59.00 (0.3) -00 00 58.90 (0.3) -00 00 58.96 -00 01 00.84 -00 00 58.94 -00 00 58.93
Spectral type DA6 DA6 DA6 DA DA5.4 DA DA
Effective temperature [K] 9060.0 9339.0 (125) 9170.0 (125) 9345.0 (123)
log(g) [cgs] 7.92 8.20 (0.2) 8.09 (0.2) 8.19 (0.2)
Mass [M] 0.549 0.649 (0.1)
log(Luminosity) [L]
Cooling age [Gyr] 0.6955
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] 3.81 (0.4) 3.63 (0.4) 3.81 (0.4)
Distance [pc] 262.31 (25) 275.36 (32) 262.31 (25)
Composition H
Proper motion (right ascension) [mas/yr] -8.369624296 (0.5) -8.236326287 (1) -8.37 (0.5) 2.8 4.0
Proper motion (declination) [mas/yr] -5.909880349 (0.5) -6.029202894 (0.7) -5.91 (0.5) -14.3 -15.0
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 19.87
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 20.22 (0.04) 20.16 20.22 (0.04) 20.16 (0.04) 20.16 20.16 (0.04) 20.16 (0.04)
g magnitude 19.66 (0.01) 19.67 19.66 (0.01) 19.68 (0.02) 19.67 19.67 (0.02) 19.67 (0.02)
r magnitude 19.62 (0.02) 19.64 19.62 (0.02) 19.65 (0.03) 19.64 19.64 (0.03) 19.64 (0.03)
i magnitude 19.73 (0.02) 19.72 19.73 (0.02) 19.73 (0.03) 19.72 19.74 (0.03) 19.72 (0.03)
z magnitude 19.84 (0.09) 19.86 19.84 (0.09) 19.85 (0.09) 19.86 19.86 (0.09) 19.86 (0.09)
G magnitude 19.61 (0.04) 19.66 19.61 (0.005)
BP magnitude 19.78 (0.04) 19.76
RP magnitude 19.44 (0.07) 19.43
Pan g magnitude 19.63 (0.01)
Pan r magnitude 19.65 (0.01)
Pan i magnitude 19.74 (0.02)
Pan z magnitude 19.92 (0.05)
Pan y magnitude 19.96 (0.07)
E(B-V) 0.039

* 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.