Gaia DR2 1947673424274107648

All names: WDJ214520.03+343001.41, Gaia EDR3 1947673424274107648, WDJ214520.03+343001.40, GALEX J214520.0+343001, Gaia DR3 1947673424274107648, Gaia DR2 1947673424274107648

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 45 20.16 (0.04) 21 45 20.16 21 45 20.16 21 45 20.03 (0.04) 21 45 20.16
Declination 34 30 00.87 (0.05) 34 30 00.89 34 30 00.87 34 30 01.41 (0.05) 34 30 00.89
Spectral type DC DC
Effective temperature [K] 9856.0 9808.0 8854.0 (104)
log(g) [cgs] 8.12 8.05 7.77 (0.02)
Mass [M] 0.675 0.612 0.453 (0.02)
log(Luminosity) [L]
Cooling age [Gyr] 0.7478 0.7081
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 10.10 (0.08) 10.15 (0.1) 10.10 10.10 (0.08) 10.15 (0.1)
Distance [pc] 99.05 (0.8) 98.49 (1) 99.05 99.05 (0.8) 98.49 (1)
Composition
Proper motion (right ascension) [mas/yr] 105.493091 (0.06) 105.4881019 (0.2) 105.493 (0.06) 105.4881019
Proper motion (declination) [mas/yr] -33.57287412 (0.06) -33.70522311 (0.2) -33.573 (0.06) -33.70522311
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 17.34 (0.004) 17.37 17.34 17.34 (0.003) 17.37
BP magnitude 17.40 (0.004) 17.39 17.39
RP magnitude 17.27 (0.007) 17.21 17.21
Pan g magnitude 17.38 (0.006)
Pan r magnitude 17.45 (0.003)
Pan i magnitude 17.58 (0.008)
Pan z magnitude 17.74 (0.01)
Pan y magnitude 17.85 (0.02)
E(B-V) 0.022

* 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.