SDSS J140315.35+180437.1

All names: SDSS J140315.35+180437.1, SDSS J140315.33+180437.1, Gaia DR2 1245383182598779008, GALEX J140315.4+180436, Gaia DR3 1245383182598779008, SDSS J140315.35+180437.10, Gaia EDR3 1245383182598779008

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 Kleinman et al. 2013 Vincent et al. 2023
Right ascension 14 03 15.34 (0.3) 14 03 15.34 14 03 15.34 (0.3) 14 03 15.34 (0.3) 14 03 15.35
Declination 18 04 37.00 (0.3) 18 04 37.12 18 04 37.01 (0.3) 18 04 37.21 (0.3) 18 04 37.12
Spectral type DB DB DB DB+MS
Effective temperature [K] 13835.0 13683.0 11657.0 13850.0 (289)
log(g) [cgs] 7.45 7.75 7.51 7.76 (0.2)
Mass [M] 0.33 0.455 0.348 0.461 (0.1)
log(Luminosity) [L]
Cooling age [Gyr] 0.2417
log(H/He) -5.994
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] 2.22 (0.4) 1.96 (0.5) 2.22 (0.4)
Distance [pc] 450.52 (81) 511.17 (135) 450.53 (81)
Composition He
Proper motion (right ascension) [mas/yr] -0.684643646 (0.4) -0.782428844 (1) -0.685 (0.4)
Proper motion (declination) [mas/yr] -13.2362276 (0.3) -13.58926722 (0.8) -13.236 (0.3)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity WDMS
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.58 (0.03) 19.58 (0.03) 19.56 (0.04)
g magnitude 19.68 (0.01) 19.68 (0.01) 19.72 (0.02)
r magnitude 19.88 (0.02) 19.88 (0.02) 19.88 (0.02)
i magnitude 20.09 (0.03) 20.09 (0.03) 20.08 (0.03)
z magnitude 20.13 (0.1) 20.13 (0.1) 20.20 (0.1)
G magnitude 19.78 (0.04) 19.82 19.78 (0.005)
BP magnitude 19.80 (0.04) 19.79
RP magnitude 19.90 (0.07) 19.75
Pan g magnitude 19.67 (0.01)
Pan r magnitude 19.90 (0.02)
Pan i magnitude 20.10 (0.01)
Pan z magnitude 20.30 (0.04)
Pan y magnitude 20.02 (0.04)
E(B-V) 0.022

* 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.