SDSS J085359.91+531858.0

All names: SDSS J085359.91+531858.01, Gaia DR3 1029675115945748224, SDSS J085359.91+531858.0, Gaia EDR3 1029675115945748224, Gaia DR2 1029675115945748224, GALEX J085359.9+531900, SDSS J085359.90+531858.0

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H MWDD HE Gaia DR2 Stilism Kepler et al. 2016 Simbad Vincent et al. 2023
Right ascension 08 53 59.92 (0.4) 08 53 59.91 08 53 59.92 (0.5) 08 53 59.90 (0.4)
Declination 53 18 57.70 (0.3) 53 18 58.01 53 18 57.71 (0.5) 53 18 58.00 (0.3)
Spectral type DC: DC: DC: DC DC
Effective temperature [K] 8273.0 8063.0 9037.0 (218)
log(g) [cgs] 8.37 8.30 8.00 (0)
Mass [M] 0.828 0.77
log(Luminosity) [L]
Cooling age [Gyr] 1.8930 1.8590
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 4.46 (0.5) 4.56 (0.7) 4.46 (0.5)
Distance [pc] 224.13 (26) 219.51 (33) 224.13 (26)
Composition
Proper motion (right ascension) [mas/yr] 7.709108297 (0.5) 7.951331887 (1) 7.709 (0.5)
Proper motion (declination) [mas/yr] -18.79368998 (0.4) -18.81416216 (1) -18.794 (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 20.58 (0.06) 20.57 (0.05) 20.58 (0.06)
g magnitude 20.22 (0.02) 20.22 (0.02) 20.22 (0.02)
r magnitude 20.22 (0.03) 20.23 (0.03) 20.22 (0.03)
i magnitude 20.28 (0.04) 20.28 (0.04) 20.29 (0.04)
z magnitude 20.36 (0.2) 20.32 (0.1) 20.37 (0.2)
G magnitude 20.11 (0.05) 20.17 20.11 (0.005)
BP magnitude 20.31 (0.05) 20.06
RP magnitude 19.88 (0.07) 19.78
Pan g magnitude 20.19 (0.01)
Pan r magnitude 20.12 (0.02)
Pan i magnitude 20.22 (0.02)
Pan z magnitude 20.27 (0.04)
Pan y magnitude 20.37 (0.2)
E(B-V) 0.012

* 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.