WD 1401+033

All names: SDSS J140404.37+030718.2, WD 1401+033, GALEX J140404.4+030718, SDSS J140404.37+030718.30, Gaia EDR3 3670541929482905600, Gaia DR2 3670541929482905600, Gaia DR3 3670541929482905600, SDSS J140404.37+030718.3, USNO-A2.0 0900-07567411

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Genest-Beaulieu & Bergeron 2019 (spectroscopic) Genest-Beaulieu & Bergeron 2019 (photometric) MWDD HE Gaia DR2 Stilism Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 14 04 04.37 (0.4) 14 04 04.37 14 04 04.37 (0.6) 14 04 04.37 (0.4) 14 04 04.37 14 04 03.84 14 04 04.37
Declination 03 07 18.24 (0.3) 03 07 18.27 03 07 18.24 (0.5) 03 07 18.27 (0.3) 03 07 18.26 03 07 14.16 03 07 18.34
Spectral type DB DB DB DB3.1 DB DB+MS
Effective temperature [K] 15744.0 14631.0 13847.0 16390.0 (357) 15970.0 (380)
log(g) [cgs] 7.74 8.17 8.13 7.90 (0.2) 7.83 (0.2)
Mass [M] 0.456 0.695 0.666 0.498 (0.1)
log(Luminosity) [L]
Cooling age [Gyr] 0.3159
log(H/He) -5.061
log(C/He)
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] 2.32 (0.4) 2.63 (0.7) 2.32 (0.4)
Distance [pc] 431.90 (74) 380.81 (99) 431.89 (74)
Composition He
Proper motion (right ascension) [mas/yr] -4.126181844 (0.5) -1.506316384 (1) -4.126 (0.5) -2.5
Proper motion (declination) [mas/yr] -2.090084178 (0.3) -1.79304185 (1) -2.09 (0.3) 1.8
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity WDMS
B magnitude 18.80 (0.3)
V magnitude
R magnitude 19.40 (0.3)
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.34 (0.03) 19.34 (0.03) 19.36 (0.04) 19.34 19.37 (0.04)
g magnitude 19.41 (0.01) 19.41 (0.01) 19.44 (0.02) 19.44 19.45 (0.02)
r magnitude 19.66 (0.02) 19.66 (0.02) 19.70 (0.02) 19.70 19.70 (0.02)
i magnitude 19.88 (0.03) 19.88 (0.03) 19.91 (0.04) 19.91 19.91 (0.04)
z magnitude 20.13 (0.1) 20.13 (0.1) 20.14 (0.1) 20.12 20.15 (0.1)
G magnitude 19.54 (0.06) 19.59 19.54 (0.005)
BP magnitude 19.64 (0.06) 19.50
RP magnitude 19.66 (0.1) 19.81
Pan g magnitude 19.45 (0.01)
Pan r magnitude 19.70 (0.009)
Pan i magnitude 19.95 (0.01)
Pan z magnitude 20.17 (0.03)
Pan y magnitude 19.89 (0.08)
E(B-V) 0.026

* 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.