SDSS J211852.10+111756.5

All names: GALEX J211852.0+111756, WDJ211852.11+111756.69, Gaia EDR3 1746315083871530112, Gaia DR3 1746315083871530112, SDSS J211852.10+111756.5, SDSS J211852.09+111756.5, Gaia DR2 1746315083871530112

Parameter Unit Gaia EDR3 Pan-STARRS DR1 MWDD H MWDD HE Gaia DR2 Stilism Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 Kleinman et al. 2013 Vincent et al. 2023
Right ascension 21 18 52.05 (0.05) 21 18 52.05 (0.08) 21 18 52.05 21 18 52.11 (0.05) 21 18 52.05 21 18 52.10
Declination 11 17 55.06 (0.05) 11 17 55.12 (0.09) 11 17 55.06 11 17 56.69 (0.05) 11 17 55.12 11 17 56.51
Spectral type DC:DA: DC:DA: DC DC DC:DA: DC
Effective temperature [K] 10494.0 10668.0 10493.0 (124) 11468.0 (457)
log(g) [cgs] 8.17 8.12 8.07 (0.02) 9.32 (0.4)
Mass [M] 0.705 0.656 0.622 (0.02)
log(Luminosity) [L]
Cooling age [Gyr] 0.6797 0.6301
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 12.85 (0.06) 12.74 (0.09) 12.85 12.85 (0.06) 12.74 (0.09)
Distance [pc] 77.83 (0.4) 78.52 (0.6) 77.83 77.83 (0.4) 78.52 (0.6)
Composition
Proper motion (right ascension) [mas/yr] -55.70773005 (0.06) -55.78877179 (0.1) -55.708 (0.06) -55.78877179
Proper motion (declination) [mas/yr] -101.4600782 (0.06) -101.4147328 (0.2) -101.46 (0.06) -101.4147328
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 16.79 (0.02) 16.77 (0.007) 16.79 (0.02)
g magnitude 16.66 (0.02) 16.68 (0.004) 16.66 (0.02)
r magnitude 16.82 (0.01) 16.82 (0.005) 16.82 (0.01)
i magnitude 16.96 (0.02) 16.98 (0.006) 16.96 (0.02)
z magnitude 17.13 (0.02) 17.15 (0.01) 17.13 (0.02)
G magnitude 16.73 (0.005) 16.75 16.73 16.73 (0.003) 16.75
BP magnitude 16.74 (0.005) 16.72 16.72
RP magnitude 16.68 (0.007) 16.66 16.66
Pan g magnitude 16.72 (0.005)
Pan r magnitude 16.85 (0.003)
Pan i magnitude 17.01 (0.002)
Pan z magnitude 17.17 (0.004)
Pan y magnitude 17.30 (0.01)
E(B-V) 0.006

* 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.