Gaia DR2 6849850998873128704

All names: J2026-2254, Gaia DR2 6849850998873128704, Gaia DR3 6849850998873128704, GALEX J202647.5-225451, Gaia EDR3 6849850998873128704, WDJ202647.52-225451.17

Parameter Unit Gaia EDR3 Pan-STARRS DR1 Jewett et al. 2024 MWDD H MWDD HE Gaia DR2 Stilism Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018
Right ascension 20 26 47.50 (0.07) 20 26 47.50 20 26 47.50 20 26 47.52 (0.07) 20 26 47.50
Declination -22 54 51.45 (0.05) -22 54 51.44 -22 54 51.45 -22 54 51.17 (0.05) -22 54 51.44
Spectral type DA DA DA
Effective temperature [K] 11405.0 (88) 11397.0 11550.0 12053.0 (177)
log(g) [cgs] 8.49 8.48 8.43 8.55 (0.01)
Mass [M] 0.917 (0.008) 0.907 0.859 0.953 (0.01)
log(Luminosity) [L]
Cooling age [Gyr] 0.9500 (0.03) 0.8925 0.7983
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
log(C/H)
log(N/H)
log(O/H)
log(Na/H)
log(Mg/H)
log(Al/H)
log(Si/H)
log(P/H)
log(S/H)
log(Sc/H)
log(Ti/H)
log(Cr/H)
log(Mn/H)
log(Fe/H)
log(Ni/H)
Parallax [mas] 14.21 (0.08) 14.06 (0.1) 14.21 14.21 (0.08) 14.06 (0.1)
Distance [pc] 70.38 (0.4) 71.14 (0.5) 70.38 70.38 (0.4) 71.14 (0.5)
Composition H
Proper motion (right ascension) [mas/yr] -14.84870215 (0.08) -14.96818652 (0.2) -14.849 (0.08) -14.96818652
Proper motion (declination) [mas/yr] -17.21747653 (0.06) -17.13495687 (0.1) -17.217 (0.06) -17.13495687
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 16.80 (0.007) 16.82 16.80 16.80 (0.003) 16.82
BP magnitude 16.81 (0.007) 16.81 16.81
RP magnitude 16.79 (0.007) 16.80 16.80
Pan g magnitude 16.78 (0.004)
Pan r magnitude 16.90 (0.005)
Pan i magnitude 17.10 (0.003)
Pan z magnitude 17.32 (0.005)
Pan y magnitude 17.43 (0.01)
E(B-V) 0.002

* 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.