SDSS J084307.03+323946.0

All names: SDSS J084307.04+323946.0, SDSS J084307.03+323946.0, Gaia EDR3 710018738967647232, WD 0840+328, Gaia DR2 710018738967647232, Gaia DR3 710018738967647232, GALEX J084307.0+323946

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H Gaia DR2 Stilism Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 08 43 07.01 (0.2) 08 43 07.04 08 43 07.01 (0.3) 08 43 07.04 (0.2) 08 43 07.04 08 43 06.48 08 43 07.04
Declination 32 39 46.12 (0.1) 32 39 46.04 32 39 46.11 (0.2) 32 39 46.00 (0.1) 32 39 46.04 32 39 40.68 32 39 46.04
Spectral type DA DA DA_auto DA DA DA
Effective temperature [K] 17601.0 23333.0 (605) 23875.0 (611)
log(g) [cgs] 6.55 7.60 (0.1) 7.72 (0.1)
Mass [M☉] 0.207 0.504 (0.04)
log(Luminosity) [L☉]
Cooling age [Gyr]
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] 1.40 (0.4) 0.76 (0.4) 1.40 (0.4)
Distance [pc] 714.87 (180) 1321.62 (780) 714.85 (180)
Composition H
Proper motion (right ascension) [mas/yr] -19.28550901 (0.4) -19.5290563 (0.7) -19.286 (0.4) -18.0
Proper motion (declination) [mas/yr] 7.386734138 (0.4) 7.407636326 (0.4) 7.387 (0.4) 10.3
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.96 (0.02) 18.96 (0.02) 18.98 (0.02) 18.97 18.96 (0.02)
g magnitude 18.99 (0.009) 18.99 (0.009) 18.99 (0.02) 18.99 18.98 (0.02)
r magnitude 19.42 (0.02) 19.42 (0.02) 19.42 (0.02) 19.42 19.42 (0.02)
i magnitude 19.67 (0.03) 19.67 (0.03) 19.70 (0.03) 19.69 19.69 (0.03)
z magnitude 19.94 (0.1) 19.94 (0.1) 19.96 (0.1) 19.96 19.94 (0.1)
G magnitude 19.20 (0.02) 19.24 19.20 (0.004)
BP magnitude 19.11 (0.02) 19.06
RP magnitude 19.46 (0.05) 19.37
Pan g magnitude 19.03 (0.01)
Pan r magnitude 19.40 (0.01)
Pan i magnitude 19.71 (0.01)
Pan z magnitude 19.97 (0.03)
Pan y magnitude 19.96 (0.06)
E(B-V) 0.024

* 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.