Gaia DR2 225641157776953984

All names: GALEX J040903.7+374534, WDJ04093.78+374534.64, Gaia EDR3 225641157776953984, Gaia DR3 225641157776953984, Gaia DR2 225641157776953984, WDJ040903.78+374534.64

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 04 09 03.81 (0.2) 04 09 03.81 04 09 03.81 04 09 03.78 (0.2) 04 09 03.81
Declination 37 45 32.67 (0.1) 37 45 32.73 37 45 32.67 37 45 34.65 (0.1) 37 45 32.73
Spectral type DC: D
Effective temperature [K] 6908.0 6649.0 6205.0 (183)
log(g) [cgs] 8.31 8.20 8.09 (0.05)
Mass [M] 0.786 0.698 0.625 (0.04)
log(Luminosity) [L]
Cooling age [Gyr] 2.9780 2.7610
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 10.90 (0.2) 10.75 (0.3) 10.90 10.90 (0.2) 10.75 (0.3)
Distance [pc] 91.77 (2) 92.99 (2) 91.77 91.77 (2) 92.99 (2)
Composition
Proper motion (right ascension) [mas/yr] 20.83965866 (0.3) 20.92427252 (0.6) 20.84 (0.3) 20.92427252
Proper motion (declination) [mas/yr] -123.6464666 (0.2) -123.4390914 (0.3) -123.646 (0.2) -123.4390914
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 18.76 (0.02) 18.79 18.76 18.76 (0.003) 18.79
BP magnitude 19.01 (0.02) 19.02 19.02
RP magnitude 18.45 (0.02) 18.44 18.44
Pan g magnitude 18.98 (0.01)
Pan r magnitude 18.77 (0.01)
Pan i magnitude 18.74 (0.009)
Pan z magnitude 18.77 (0.01)
Pan y magnitude 18.85 (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.