Gaia DR2 1842543963578582016

All names: GALEX J205422.5+233742, WDJ205422.62+233743.10, Gaia DR2 1842543963578582016, Gaia EDR3 1842543963578582016, J2054+2337, SDSS J205422.60+233742.8, TIC 286862643, 2MASS J20542260+2337433, Gaia DR3 1842543963578582016

Parameter Unit Gaia EDR3 Pan-STARRS DR1 Kilic et al. 2025 Kilic et al. 2020 MWDD H MWDD HE Gaia DR2 Stilism Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018
Right ascension 20 54 22.58 (0.04) 20 54 22.58 20 54 22.58 20 54 22.62 (0.04) 20 54 22.58
Declination 23 37 42.54 (0.03) 23 37 42.56 23 37 42.54 23 37 43.10 (0.03) 23 37 42.56
Spectral type DA DA DA DA
Effective temperature [K] 17023.0 (196) 17018.0 (194) 16056.0 17440.0 16402.0 (195)
log(g) [cgs] 8.19 (0.01) 8.20 (0.01) 8.14 8.30 8.14 (0.01)
Mass [M] 0.729 (0.009) 0.737 (0.01) 0.699 0.781 0.7 (0.01)
log(Luminosity) [L]
Cooling age [Gyr] 0.2011 0.2155
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] 10.33 (0.05) 10.43 (0.08) 10.33 10.33 (0.05) 10.43 (0.08)
Distance [pc] 96.84 (0.5) 95.92 (0.8) 96.84 96.84 (0.5) 95.92 (0.8)
Composition H
Proper motion (right ascension) [mas/yr] -35.74738171 (0.04) -35.81893277 (0.1) -35.747 (0.04) -35.81893277
Proper motion (declination) [mas/yr] -35.19399813 (0.05) -35.07166718 (0.1) -35.194 (0.05) -35.07166718
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude 16.59 (0.1)
H magnitude
K magnitude
u magnitude 16.30 (0.006) 16.30 (0.006)
g magnitude 16.12 (0.003) 16.12 (0.003)
r magnitude 16.45 (0.004) 16.45 (0.004)
i magnitude 16.71 (0.005) 16.71 (0.005)
z magnitude 16.99 (0.01) 16.99 (0.01)
G magnitude 16.30 (0.003) 16.32 16.30 16.30 (0.003) 16.32
BP magnitude 16.24 (0.003) 16.22 16.22
RP magnitude 16.43 (0.004) 16.43 16.43
Pan g magnitude 16.17 (0.003)
Pan r magnitude 16.46 (0.002)
Pan i magnitude 16.75 (0.004)
Pan z magnitude 16.99 (0.003)
Pan y magnitude 17.16 (0.005)
E(B-V) 0.009

* 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.