Gaia DR2 1840344180112932992

All names: Gaia DR3 1840344180112932992, GALEX J211721.7+240242, Gaia EDR3 1840344180112932992, Gaia DR2 1840344180112932992, WDJ211721.85+240241.90, WDJ211721.85+240241.91

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 21 17 21.85 (0.2) 21 17 21.85 21 17 21.85 21 17 21.85 (0.2) 21 17 21.85
Declination 24 02 42.36 (0.1) 24 02 42.35 24 02 42.36 24 02 41.91 (0.1) 24 02 42.35
Spectral type DA DA
Effective temperature [K] 5822.0 5563.0 5974.0 (95)
log(g) [cgs] 7.95 7.77 8.07 (0.04)
Mass [M] 0.554 0.443 0.628 (0.03)
log(Luminosity) [L]
Cooling age [Gyr] 2.2250 2.3960
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 12.87 (0.2) 12.49 (0.3) 12.87 12.87 (0.2) 12.49 (0.3)
Distance [pc] 77.69 (1) 80.05 (2) 77.69 77.69 (1) 80.05 (2)
Composition
Proper motion (right ascension) [mas/yr] 5.596927451 (0.2) 5.782273188 (0.4) 5.597 (0.2) 5.782273188
Proper motion (declination) [mas/yr] 28.28508414 (0.1) 28.44404263 (0.4) 28.285 (0.1) 28.44404263
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 18.59 (0.03) 18.61 18.59 18.59 (0.003) 18.61
BP magnitude 18.93 (0.03) 18.91 18.91
RP magnitude 18.13 (0.02) 18.11 18.11
Pan g magnitude 18.95 (0.006)
Pan r magnitude 18.59 (0.004)
Pan i magnitude 18.45 (0.004)
Pan z magnitude 18.43 (0.006)
Pan y magnitude 18.39 (0.03)
E(B-V) 0.008

* 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.