Gaia DR2 4240599263505188736

All names: WDJ195423.76+013704.88, Gaia DR2 4240599263505188736, WDJ195423.76+013704.87, GALEX J195423.7+013705, Gaia EDR3 4240599263505188736, Gaia DR3 4240599263505188736

Parameter Unit Gaia EDR3 Pan-STARRS DR1 MWDD H MWDD HE Gaia DR2 Stilism Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018
Right ascension 19 54 23.73 (0.2) 19 54 23.73 19 54 23.73 19 54 23.76 (0.2) 19 54 23.73
Declination 01 37 04.82 (0.1) 01 37 04.82 01 37 04.82 01 37 04.88 (0.1) 01 37 04.82
Spectral type DC D
Effective temperature [K] 7101.0 6834.0 6581.0 (223)
log(g) [cgs] 8.30 8.20 8.12 (0.05)
Mass [M] 0.786 0.7 0.646 (0.05)
log(Luminosity) [L]
Cooling age [Gyr] 2.7280 2.5210
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 11.27 (0.2) 11.26 (0.2) 11.27 11.27 (0.2) 11.26 (0.2)
Distance [pc] 88.70 (1) 88.79 (2) 88.70 88.70 (1) 88.79 (2)
Composition
Proper motion (right ascension) [mas/yr] -23.91955385 (0.2) -23.82143575 (0.4) -23.92 (0.2) -23.82143575
Proper motion (declination) [mas/yr] -3.725152131 (0.1) -3.591912752 (0.3) -3.725 (0.1) -3.591912752
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude
g magnitude
r magnitude
i magnitude
z magnitude
G magnitude 18.54 (0.02) 18.57 18.54 18.54 (0.003) 18.57
BP magnitude 18.77 (0.02) 18.81 18.81
RP magnitude 18.24 (0.01) 18.25 18.25
Pan g magnitude 18.75 (0.004)
Pan r magnitude 18.58 (0.002)
Pan i magnitude 18.56 (0.02)
Pan z magnitude 18.59 (0.008)
Pan y magnitude 18.69 (0.02)
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.