SDSS J085748.03+332708.5

All names: Gaia DR2 713347476060440064, SDSS J085748.03+332708.5, Gaia DR3 713347476060440064, SDSS J085748.04+332708.4, SDSS J085748.04+332708.5, Gaia EDR3 713347476060440064, SDSS J085748.04+332708.40

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Genest-Beaulieu & Bergeron 2019 (spectroscopic) Genest-Beaulieu & Bergeron 2019 (photometric) MWDD HE Gaia DR2 Stilism Kepler et al. 2016 Simbad Vincent et al. 2023
Right ascension 08 57 48.05 (0.2) 08 57 48.04 08 57 48.05 (0.2) 08 57 48.04 (0.2)
Declination 33 27 08.24 (0.1) 33 27 08.53 33 27 08.26 (0.2) 33 27 08.65 (0.1)
Spectral type DB DB DB DB
Effective temperature [K] 18366.0 19340.0 16606.0 29800.0 (410)
log(g) [cgs] 8.25 8.36 8.17 7.86 (0.06)
Mass [M] 0.749 0.819 0.697
log(Luminosity) [L]
Cooling age [Gyr] 0.1978
log(H/He) -4.298
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] 2.56 (0.3) 2.97 (0.4) 2.56 (0.3)
Distance [pc] 390.35 (38) 336.59 (43) 390.35 (38)
Composition He
Proper motion (right ascension) [mas/yr] 5.237073571 (0.2) 5.771328294 (0.5) 5.237 (0.2)
Proper motion (declination) [mas/yr] -25.29109381 (0.2) -25.8130427 (0.3) -25.291 (0.2)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.64 (0.02) 18.67 (0.02) 18.64 (0.02)
g magnitude 18.70 (0.008) 18.77 (0.03) 18.70 (0.008)
r magnitude 19.07 (0.01) 19.19 (0.04) 19.07 (0.01)
i magnitude 19.26 (0.02) 19.36 (0.02) 19.26 (0.02)
z magnitude 19.62 (0.07) 19.73 (0.07) 19.62 (0.07)
G magnitude 18.92 (0.02) 18.96 18.92 (0.003)
BP magnitude 18.90 (0.02) 18.83
RP magnitude 19.15 (0.05) 18.97
Pan g magnitude 18.80 (0.005)
Pan r magnitude 19.11 (0.01)
Pan i magnitude 19.36 (0.01)
Pan z magnitude 19.61 (0.02)
Pan y magnitude 19.74 (0.04)
E(B-V) 0.021

* 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.