SDSS J234137.40+082559.3

All names: SDSS J234137.39+082559.1, SDSS J234137.40+082559.30, Gaia EDR3 2758094514203874304, Gaia DR3 2758094514203874304, SDSS J234137.40+082559.3, SDSS J234137.40+082559.0, GALEX J234137.3+082559, Gaia DR2 2758094514203874304, SDSS J234137.39+082559.2

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Genest-Beaulieu & Bergeron 2019 (spectroscopic) Genest-Beaulieu & Bergeron 2019 (photometric) MWDD HE Gaia DR2 Stilism Koester & Kepler 2015 Vincent et al. 2024 Simbad Kleinman et al. 2013 Vincent et al. 2023
Right ascension 23 41 37.41 (0.1) 23 41 37.40 23 41 37.41 (0.2) 23 41 37.41 23 41 37.39 (0.1) 23 41 37.40
Declination 08 25 59.01 (0.09) 08 25 59.24 08 25 59.02 (0.1) 08 25 59.01 08 25 59.46 (0.09) 08 25 59.28
Spectral type DBA DB DBA DBA DB
Effective temperature [K] 13875.0 12715.0 11341.0 14198.0 (40) 12001.0 (397) 14592.0 (101)
log(g) [cgs] 7.81 7.88 7.78 8.00 (0) 7.88 (0.05) 8.65 (0.07)
Mass [M] 0.486 0.517 0.463 0.517 (0.04)
log(Luminosity) [L]
Cooling age [Gyr] 0.3351
log(H/He) -4.867 -4.61 (0.1)
log(C/He)
log(Ca/He) <-8.73
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] 5.24 (0.1) 5.16 (0.2) 5.24 5.24 (0.1)
Distance [pc] 190.87 (5) 193.73 (9) 191.00 190.87 190.87 (5)
Composition He
Proper motion (right ascension) [mas/yr] 11.12592044 (0.2) 11.40704359 (0.4) 11.126 (0.2)
Proper motion (declination) [mas/yr] -28.61911664 (0.1) -28.49893263 (0.2) -28.619 (0.1)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.04 (0.01) 18.04 (0.01) 18.01 (0.02)
g magnitude 18.00 (0.006) 18.00 (0.006) 18.02 (0.02)
r magnitude 18.18 (0.007) 18.18 (0.007) 18.18 (0.02)
i magnitude 18.34 (0.009) 18.34 (0.009) 18.33 (0.02)
z magnitude 18.52 (0.03) 18.52 (0.03) 18.53 (0.03)
G magnitude 18.06 (0.02) 18.10 18.06 18.06 (0.003)
BP magnitude 18.05 (0.02) 18.03
RP magnitude 18.07 (0.02) 18.04
Pan g magnitude 18.03 (0.006)
Pan r magnitude 18.18 (0.004)
Pan i magnitude 18.37 (0.005)
Pan z magnitude 18.53 (0.007)
Pan y magnitude 18.68 (0.03)
E(B-V) 0.058

* 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.