WD 1401+438

All names: SDSS J140354.01+433454.9, GALEX J140354.0+433454, SDSS J140354.03+433454.4, FBS B 331, PB 1281, SDSS J140354.00+433454.8, FBS 1401+438, Gaia DR2 1499364359956849408, WD 1401+438, 2XMM J140353.1+433457, CSO 406, Gaia DR3 1499364359956849408, SDSS J140354.01+433454.8, Gaia EDR3 1499364359956849408

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Gaia DR2 Stilism Tremblay et al. 2011 Vincent et al. 2024 Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 14 03 54.03 (0.04) 14 03 54.01 14 03 54.03 (0.06) 14 03 54.03 14 03 54.01 (0.04) 14 03 54.01 14 03 54.14 14 03 54.01
Declination 43 34 54.32 (0.05) 43 34 54.91 43 34 54.35 (0.06) 43 34 54.32 43 34 55.12 (0.05) 43 34 54.81 43 34 50.52 43 34 54.81
Spectral type DA DA DA DA_auto DA DA DA
Effective temperature [K] 21310.0 (220) 20663.0 (555) 20732.0 (171) 20741.0 (171)
log(g) [cgs] 7.98 (0.03) 7.93 (0.03) 8.01 (0.03) 7.98 (0.03)
Mass [M] 0.62 (0.02) 0.585 (0.02) 0.614 (0.01)
log(Luminosity) [L]
Cooling age [Gyr] 0.0513
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] 4.71 (0.06) 4.92 (0.08) 4.71 4.71 (0.06)
Distance [pc] 212.46 (3) 203.35 (3) 212.46 212.46 (3)
Composition H
Proper motion (right ascension) [mas/yr] 11.97646113 (0.05) 11.82863071 (0.1) 11.976 (0.05) 19.0
Proper motion (declination) [mas/yr] -50.22444561 (0.06) -50.35753022 (0.1) -50.224 (0.06) -52.8
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 17.00
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 17.09 (0.008) 17.09 (0.008) 17.11 (0.04) 17.11 17.12 (0.04)
g magnitude 17.07 (0.004) 17.07 (0.004) 17.10 (0.02) 17.10 17.09 (0.02)
r magnitude 17.43 (0.005) 17.43 (0.005) 17.45 (0.02) 17.45 17.45 (0.02)
i magnitude 17.74 (0.007) 17.74 (0.007) 17.76 (0.02) 17.76 17.74 (0.02)
z magnitude 17.96 (0.02) 17.96 (0.02) 18.04 (0.03) 18.04 18.03 (0.03)
G magnitude 17.27 (0.005) 17.30 17.27 17.27 (0.003)
BP magnitude 17.20 (0.005) 17.16
RP magnitude 17.47 (0.007) 17.46
Pan g magnitude 17.12 (0.009)
Pan r magnitude 17.45 (0.007)
Pan i magnitude 17.77 (0.005)
Pan z magnitude 18.03 (0.005)
Pan y magnitude 18.21 (0.01)
E(B-V) 0.017

* 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.