Gaia DR2 6865640913564745856

All names: Gaia DR2 6865640913564745856, WDJ195439.69-201449.51, Gaia EDR3 6865640913564745856, Gaia DR3 6865640913564745856, GALEX J195439.6-201450, WDJ195439.69-201449.52

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 39.71 (0.04) 19 54 39.70 19 54 39.71 19 54 39.69 (0.04) 19 54 39.70
Declination -20 14 51.10 (0.03) -20 14 51.05 -20 14 51.10 -20 14 49.52 (0.03) -20 14 51.05
Spectral type DA DA
Effective temperature [K] 15635.0 16916.0 17051.0 (282)
log(g) [cgs] 8.11 8.26 8.19 (0.01)
Mass [M] 0.677 0.751 0.731 (0.01)
log(Luminosity) [L]
Cooling age [Gyr] 0.2060 0.2181
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 10.61 (0.05) 10.64 (0.07) 10.61 10.61 (0.05) 10.64 (0.07)
Distance [pc] 94.28 (0.4) 94.02 (0.6) 94.28 94.28 (0.4) 94.02 (0.6)
Composition
Proper motion (right ascension) [mas/yr] 17.2432683 (0.05) 17.34984378 (0.1) 17.243 (0.05) 17.34984378
Proper motion (declination) [mas/yr] -98.87521633 (0.03) -98.83983446 (0.07) -98.875 (0.04) -98.83983446
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 16.23 (0.004) 16.26 16.23 16.23 (0.003) 16.26
BP magnitude 16.18 (0.004) 16.15 16.15
RP magnitude 16.38 (0.005) 16.36 16.36
Pan g magnitude 16.12 (0.003)
Pan r magnitude 16.42 (0.005)
Pan i magnitude 16.69 (0.002)
Pan z magnitude 16.94 (0.003)
Pan y magnitude 17.09 (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.