SDSS J234605.44+385337.7

All names: WD 2343+386, Gaia DR2 1919346461391649152, Gaia EDR3 1919346461391649152, Gaia DR3 1919346461391649152, GALEX J234605.4+385337, SDSS J234605.44+385337.7, SDSS J234605.44+385337.6

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Hardy et al. 2023b MWDD H Gaia DR2 Stilism Ferrario et al. 2015 Kulebi et al. 2009 Simbad White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 23 46 05.43 (0.2) 23 46 05.44 23 46 05.43 (0.2) 23 46 05.44 23 46 05.45 (0.2) 23 46 05.23 23 46 05.44
Declination 38 53 37.52 (0.1) 38 53 37.66 38 53 37.52 (0.2) 38 53 37.61 38 53 37.73 (0.1) 38 53 33.72 38 53 37.69
Spectral type HotDC DA DA DAH DAP DAP1.9 DAH DC
Effective temperature [K] 29503.3 (1047) 16665.0 26000.0 100000.0 (794)
log(g) [cgs] 9.04 (0.4) 8.60 8.00 (0) 5.00 (0.01)
Mass [M] 1.210905205 (0.3) 0.99
log(Luminosity) [L]
Cooling age [Gyr] 0.3941
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] 4.17 (0.2) 4.08 (0.3) 4.17 (0.2)
Distance [pc] 240.03 (13) 245.22 (16) 240.03 (13)
Composition H H
Proper motion (right ascension) [mas/yr] -14.37620491 (0.3) -14.70955237 (0.4) -14.376 (0.3)
Proper motion (declination) [mas/yr] -13.34168647 (0.2) -13.13563387 (0.3) -13.342 (0.2)
Variability
Magnetic yes yes yes yes
Bd [MG] 798.1 (164) 798.1 (164)
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.67 (0.02) 18.67 (0.02) 18.64 18.65 (0.02)
g magnitude 18.87 (0.009) 18.87 (0.009) 18.89 18.89 (0.02)
r magnitude 19.29 (0.01) 19.29 (0.01) 19.28 19.29 (0.01)
i magnitude 19.49 (0.02) 19.49 (0.02) 19.48 19.48 (0.02)
z magnitude 19.97 (0.08) 19.97 (0.08) 19.85 19.86 (0.07)
G magnitude 19.03 (0.02) 19.06 19.03 (0.004)
BP magnitude 19.00 (0.02) 18.91
RP magnitude 19.34 (0.06) 19.20
Pan g magnitude 18.89 (0.01)
Pan r magnitude 19.23 (0.02)
Pan i magnitude 19.49 (0.008)
Pan z magnitude 19.83 (0.02)
Pan y magnitude 19.57 (0.03)
E(B-V) 0.051

* 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.