SDSS J094038.33+285705.6

All names: GALEX J094038.3+285705, Gaia DR2 696380671614024960, SDSS J094038.33+285705.5, Gaia DR3 696380671614024960, SDSS J094038.33+285705.60, SDSS J094038.33+285705.6, Gaia EDR3 696380671614024960

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 38.31 (0.4) 09 40 38.33 09 40 38.31 (0.6) 09 40 38.34 (0.4) 09 40 38.33
Declination 28 57 05.42 (0.3) 28 57 05.58 28 57 05.42 (0.4) 28 57 05.64 (0.3) 28 57 05.63
Spectral type DB DB DB DB
Effective temperature [K] 14277.0 14473.0 13116.0 14209.0 (272)
log(g) [cgs] 7.88 6.98 6.84 7.84 (0.2)
Mass [M] 0.524 0.222 0.192 0.498 (0.1)
log(Luminosity) [L]
Cooling age [Gyr]
log(H/He) -5.97
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] 2.61 (0.5) 1.05 (1) 2.61 (0.5)
Distance [pc] 383.65 (75) 951.30 (901) 383.64 (75)
Composition He
Proper motion (right ascension) [mas/yr] -26.75611594 (0.5) -28.48205967 (1) -26.756 (0.5)
Proper motion (declination) [mas/yr] -14.12565359 (0.3) -13.35771849 (0.8) -14.126 (0.3)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.62 (0.03) 19.62 (0.03) 19.62 (0.04)
g magnitude 19.69 (0.01) 19.68 (0.01) 19.70 (0.02)
r magnitude 19.88 (0.02) 19.88 (0.02) 19.90 (0.03)
i magnitude 20.16 (0.04) 20.16 (0.04) 20.17 (0.04)
z magnitude 20.54 (0.2) 20.55 (0.2) 20.47 (0.1)
G magnitude 19.76 (0.04) 19.82 19.76 (0.004)
BP magnitude 19.79 (0.04) 19.75
RP magnitude 19.73 (0.08) 19.73
Pan g magnitude 19.69 (0.01)
Pan r magnitude 19.90 (0.02)
Pan i magnitude 20.12 (0.02)
Pan z magnitude 20.32 (0.05)
Pan y magnitude 20.78 (0.2)
E(B-V) 0.020

* 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.