Gaia DR2 2054290592931084928

All names: WDJ201956.77+320909.10, SDSS J201956.79+320909.2, Gaia EDR3 2054290592931084928, Gaia DR2 2054290592931084928, Gaia DR3 2054290592931084928

Parameter Unit Gaia EDR3 Pan-STARRS DR1 Gaia DR2 Stilism Vincent et al. 2024 Simbad
Right ascension 20 19 56.84 (0.09) 20 19 56.84 20 19 56.84 20 19 56.77 (0.09)
Declination 32 09 09.56 (0.1) 32 09 09.55 32 09 09.56 32 09 09.11 (0.1)
Spectral type DA DA
Effective temperature [K] 8128.0 (187)
log(g) [cgs] 8.42 (0.04)
Mass [M☉] 0.866 (0.03)
log(Luminosity) [L☉]
Cooling age [Gyr]
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 9.92 (0.1) 9.86 (0.2) 9.92 9.92 (0.1)
Distance [pc] 100.81 (1) 101.46 (2) 100.81 100.81 (1)
Composition
Proper motion (right ascension) [mas/yr] 56.82672816 (0.1) 56.92632265 (0.3) 56.827 (0.1)
Proper motion (declination) [mas/yr] 28.46384989 (0.1) 28.63902813 (0.3) 28.464 (0.1)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.08 (0.04)
g magnitude 18.68 (0.01)
r magnitude 18.60 (0.008)
i magnitude 18.67 (0.01)
z magnitude 18.66 (0.04)
G magnitude 18.55 (0.01) 18.58 18.55 18.55 (0.003)
BP magnitude 18.70 (0.01) 18.68
RP magnitude 18.37 (0.02) 18.32
Pan g magnitude 18.68 (0.01)
Pan r magnitude 18.66 (0.002)
Pan i magnitude 18.67 (0.003)
Pan z magnitude 18.75 (0.02)
Pan y magnitude 18.90 (0.03)
E(B-V) 0.013

* 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.