Gaia DR2 4229720527957915904

All names: Gaia EDR3 4229720527957915904, WDJ203422.56+002522.84, WDJ203422.56+002522.83, SDSS J203422.55+002522.8, Gaia DR3 4229720527957915904, Gaia DR2 4229720527957915904, SDSS J203422.56+002522.8

Parameter Unit Gaia EDR3 Pan-STARRS DR1 Kilic et al. 2025 MWDD H MWDD HE Gaia DR2 Stilism Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018
Right ascension 20 34 22.56 (0.3) 20 34 22.56 20 34 22.56 20 34 22.56 (0.3) 20 34 22.56
Declination 00 25 22.90 (0.2) 00 25 22.90 00 25 22.90 00 25 22.84 (0.2) 00 25 22.90
Spectral type DA DA DA
Effective temperature [K] 5437.0 (46) 5417.0 5135.0 5497.0 (121)
log(g) [cgs] 8.04 (0.04) 8.03 7.84 8.04 (0.06)
Mass [M] 0.605 (0.04) 0.599 0.475 0.607 (0.06)
log(Luminosity) [L]
Cooling age [Gyr] 3.7540 3.8740
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] 10.52 (0.3) 10.52 (0.4) 10.52 10.52 (0.3) 10.52 (0.4)
Distance [pc] 95.08 (3) 95.01 (4) 95.08 95.08 (3) 95.01 (4)
Composition H
Proper motion (right ascension) [mas/yr] 0.802377048 (0.4) 1.766053522 (0.8) 0.802 (0.4) 1.766053522
Proper motion (declination) [mas/yr] 3.845791339 (0.3) 4.322083163 (0.5) 3.846 (0.3) 4.322083163
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 21.19 (0.09) 21.19 (0.09)
g magnitude 19.87 (0.02) 19.87 (0.02)
r magnitude 19.38 (0.01) 19.38 (0.01)
i magnitude 19.15 (0.02) 19.15 (0.02)
z magnitude 19.02 (0.04) 19.02 (0.04)
G magnitude 19.38 (0.05) 19.42 19.38 19.38 (0.004) 19.42
BP magnitude 19.72 (0.05) 19.81 19.81
RP magnitude 18.82 (0.03) 18.83 18.83
Pan g magnitude 19.85 (0.01)
Pan r magnitude 19.38 (0.02)
Pan i magnitude 19.19 (0.007)
Pan z magnitude 19.13 (0.009)
Pan y magnitude 19.03 (0.05)
E(B-V) 0.012

* 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.