SDSS J075709.20+464610.0

All names: SDSS J075709.19+464609.8, Gaia DR3 932673043343645952, Gaia DR2 932673039047389952, SDSS J075709.20+464610.0, SDSS J075709.20+464610.01, Gaia EDR3 932673043343645952, GALEX J075709.1+464610

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR10 MWDD H MWDD HE Gaia DR2 Stilism Kepler et al. 2015 Simbad Vincent et al. 2023
Right ascension 07 57 09.16 (0.7) 07 57 09.19 07 57 09.16 (2) 07 57 09.19 (0.7)
Declination 46 46 09.40 (0.5) 46 46 09.82 46 46 09.41 (0.7) 46 46 09.82 (0.5)
Spectral type DC DC DC DC DC
Effective temperature [K] 7411.0 7343.0 10629.0 (1000)
log(g) [cgs] 7.39 7.35 6.84 (0.5)
Mass [M] 0.307 0.274
log(Luminosity) [L]
Cooling age [Gyr] 0.6979 0.7218
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 2.79 (0.8) 2.66 (1) 2.79 (0.8)
Distance [pc] 358.20 (97) 375.52 (168) 358.20 (97)
Composition
Proper motion (right ascension) [mas/yr] -21.83221877 (0.9) -24.87830465 (3) -21.832 (0.9)
Proper motion (declination) [mas/yr] -26.23483826 (0.6) -25.69819793 (1) -26.235 (0.6)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 21.06 (0.1) 21.06 (0.1) 21.07 (0.1)
g magnitude 20.42 (0.02) 20.42 (0.02) 20.43 (0.03)
r magnitude 20.31 (0.03) 20.31 (0.03) 20.32 (0.03)
i magnitude 20.32 (0.04) 20.32 (0.04) 20.32 (0.04)
z magnitude 20.37 (0.2) 20.37 (0.1) 20.37 (0.1)
G magnitude 20.31 (0.08) 20.35 20.31 (0.008)
BP magnitude 20.48 (0.08) 20.42
RP magnitude 20.05 (0.1) 20.10
Pan g magnitude 20.44 (0.02)
Pan r magnitude 20.35 (0.03)
Pan i magnitude 20.36 (0.02)
Pan z magnitude 20.28 (0.1)
Pan y magnitude 19.79 (0.2)
E(B-V) 0.036

* 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.