SDSS J204158.98+000325.4

All names: Gaia DR3 4228097889313031808, GALEX J204159.0+000326, SDSS J204158.97+000325.4, Gaia DR2 4228097889313031808, WD 2039-001, SDSS J204158.98+000325.4, Gaia EDR3 4228097889313031808

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Bedard et al. 2020 Gaia DR2 Stilism Hugelmeyer et al. 2006 Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 20 41 58.98 (0.2) 20 41 58.97 20 41 58.98 (0.5) 20 41 58.97 (0.2) 20 41 58.97 20 41 58.80 20 41 58.98
Declination 00 03 25.37 (0.1) 00 03 25.44 00 03 25.37 (0.8) 00 03 25.44 (0.1) 00 03 25.44 00 03 28.44 00 03 25.43
Spectral type DO DO DAO DO: DO: DO DO
Effective temperature [K] 79003.0 (6716) 110000.0 (4500) 97864.0 (4371) 95274.0 (6304)
log(g) [cgs] 7.56 (0.4) 7.20 (0.04) 5.12 (0.2) 5.51 (0.5)
Mass [M] 0.53 (0.1) 0.6
log(Luminosity) [L] 1.14 (0.3)
Cooling age [Gyr] 0.0001
log(H/He)
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] 0.66 (0.3) 0.66 (0.3)
Distance [pc] 1507.84 (604) 1507.84 (605)
Composition He
Proper motion (right ascension) [mas/yr] 2.307274549 (0.3) 2.307 (0.3) 3.3
Proper motion (declination) [mas/yr] -4.497101511 (0.2) -4.497 (0.2) -2.5
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 18.35
V magnitude 19.06
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.36 (0.02) 18.36 (0.02) 18.35 (0.03) 18.34 18.37 (0.03)
g magnitude 18.79 (0.009) 18.80 (0.009) 18.80 (0.009) 18.79 18.80 (0.01)
r magnitude 19.30 (0.01) 19.31 (0.01) 19.30 (0.01) 19.30 19.31 (0.01)
i magnitude 19.67 (0.02) 19.66 (0.02) 19.67 (0.02) 19.67 19.66 (0.02)
z magnitude 19.79 (0.09) 19.81 (0.09) 19.82 (0.09) 19.82 19.81 (0.09)
G magnitude 19.05 (0.02) 19.09 19.05 (0.004)
BP magnitude 18.91 (0.02) 18.79
RP magnitude 19.42 (0.05) 19.33
Pan g magnitude 18.87 (0.005)
Pan r magnitude 19.31 (0.006)
Pan i magnitude 19.68 (0.02)
Pan z magnitude 19.96 (0.02)
Pan y magnitude 20.01 (0.09)
E(B-V) 0.049

* 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.