SDSS J094053.83+203334.9

All names: Gaia EDR3 639866358062189184, Gaia DR2 639866358062189184, SDSS J094053.83+203334.8, SDSS J094053.83+203334.90, Gaia DR3 639866358062189184, SDSS J094053.83+203334.9

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 09 40 53.83 (0.4) 09 40 53.83 09 40 53.83 (0.7) 09 40 53.84 (0.4) 09 40 53.83
Declination 20 33 34.94 (0.3) 20 33 34.86 20 33 34.94 (0.6) 20 33 34.85 (0.3) 20 33 34.90
Spectral type DBAH: DBAH DBAH: DB
Effective temperature [K] 12932.0 13445.0 12164.0 13383.0 (355)
log(g) [cgs] 7.02 8.59 8.48 7.91 (0.3)
Mass [M☉] 0.223 0.965 0.895
log(Luminosity) [L☉]
Cooling age [Gyr] 0.7713
log(H/He) <-6.132
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] 2.71 (0.4) 4.01 (0.9) 2.71 (0.4)
Distance [pc] 369.63 (54) 249.65 (53) 369.63 (54)
Composition He
Proper motion (right ascension) [mas/yr] -8.032133924 (0.5) -6.980024921 (1) -8.032 (0.5)
Proper motion (declination) [mas/yr] 6.148007926 (0.4) 5.693361231 (1) 6.148 (0.4)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.39 (0.02) 19.39 (0.02) 19.39 (0.03)
g magnitude 19.40 (0.01) 19.40 (0.01) 19.43 (0.02)
r magnitude 19.62 (0.01) 19.62 (0.01) 19.65 (0.02)
i magnitude 19.87 (0.02) 19.87 (0.02) 19.87 (0.03)
z magnitude 20.02 (0.08) 20.02 (0.08) 20.04 (0.08)
G magnitude 19.49 (0.04) 19.55 19.49 (0.004)
BP magnitude 19.47 (0.04) 19.54
RP magnitude 19.36 (0.07) 19.54
Pan g magnitude 19.44 (0.007)
Pan r magnitude 19.62 (0.01)
Pan i magnitude 19.83 (0.03)
Pan z magnitude 20.02 (0.03)
Pan y magnitude 20.13 (0.1)
E(B-V) 0.025

* 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.