WD 1403+020

All names: SDSS J140632.42+014838.2, GALEX J140632.5+014838, Gaia DR2 3667337544578212736, 2QZ J140632.4+014839, Gaia DR3 3667337544578212736, WD 1403+020, SDSS J140632.42+014838.3, J1406+0148, Gaia EDR3 3667337544578212736

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Coutu et al. 2019 Gaia DR2 Stilism Dufour et al. 2005 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 06 32.37 (0.2) 14 06 32.42 14 06 32.43 14 06 32.37 (0.2) 14 06 32.37 14 06 32.43 (0.2) 14 06 32.42 14 06 31.61 14 06 32.42
Declination 01 48 37.14 (0.1) 01 48 38.30 01 48 38.34 01 48 37.17 (0.2) 01 48 37.14 01 48 38.33 (0.1) 01 48 38.30 01 48 31.68 01 48 38.30
Spectral type DQ DQ DQ DQ DQ: WDDQ: DQ DQ
Effective temperature [K] 7713.0 (186) 7670.0 (150) 7447.0 (189) 10120.0 (57) 10125.0 (59)
log(g) [cgs] 7.91 8.00 (0) 7.82 (0.05) 8.63 (0.3) 9.60 (0.3)
Mass [M] 0.5231 0.474 (0.04)
log(Luminosity) [L]
Cooling age [Gyr] 1.0900
log(H/He)
log(C/He) -5.8262 (0.1) -5.63 (0.3)
log(Ca/He)
log(Ca/H)
log(N/He)
log(O/He)
log(Na/He)
log(Mg/He)
log(Al/He)
log(Si/He)
log(P/He)
log(S/He)
log(Cl/He)
log(Sc/He)
log(Ti/He)
log(V/He)
log(Cr/He)
log(Mn/He)
log(Fe/He)
log(Co/He)
log(Ni/He)
log(Cu/He)
log(Zn/He)
log(Ga/He)
log(Ge/He)
log(Sr/He)
Parallax [mas] 8.80 (0.2) 8.86 8.86 (0.2) 8.80 8.80 (0.2)
Distance [pc] 113.60 (2) 112.92 (3) 112.92 (3) 108.00 113.60 113.60 (2)
Composition He He
Proper motion (right ascension) [mas/yr] -54.25180102 (0.2) -54.38735652 (0.4) -54.252 (0.2) -89.1
Proper motion (declination) [mas/yr] -74.79566227 (0.1) -75.12130039 (0.3) -74.796 (0.1) -90.4
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.71 (0.02) 18.71 (0.02) 18.66 (0.03) 18.71 18.67 (0.03)
g magnitude 18.39 (0.007) 18.39 (0.007) 18.41 (0.03) 18.41 18.41 (0.03)
r magnitude 18.35 (0.008) 18.35 (0.008) 18.37 (0.02) 18.36 18.37 (0.02)
i magnitude 18.41 (0.01) 18.41 (0.01) 18.41 (0.02) 18.42 18.41 (0.02)
z magnitude 18.53 (0.03) 18.53 (0.04) 18.53 (0.04) 18.53 18.53 (0.03)
G magnitude 18.32 (0.02) 18.36 18.32 18.32 (0.003)
BP magnitude 18.45 (0.02) 18.41
RP magnitude 18.09 (0.02) 18.13
Pan g magnitude 18.41 (0.005)
Pan r magnitude 18.36 (0.004)
Pan i magnitude 18.45 (0.006)
Pan z magnitude 18.53 (0.01)
Pan y magnitude 18.61 (0.02)
E(B-V) 0.011

* 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.