Gaia DR2 2822335370842658304

All names: WDJ235638.42+194553.30, GALEX J235638.4+194553, SDSS J235638.50+194552.6, Gaia EDR3 2822335370842658304, Gaia DR3 2822335370842658304, J2356+1945, WDJ235638.42+194553.29, Gaia DR2 2822335370842658304

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 23 56 38.55 (0.04) 23 56 38.55 23 56 38.55 23 56 38.42 (0.04) 23 56 38.55
Declination 19 45 52.16 (0.03) 19 45 52.19 19 45 52.16 19 45 53.30 (0.03) 19 45 52.19
Spectral type DA DA DA DA
Effective temperature [K] 13439.0 (120) 13449.0 (120) 13346.0 14233.0 14056.0 (143)
log(g) [cgs] 7.97 (0.008) 7.96 (0.01) 7.95 8.03 8.02 (0.01)
Mass [M] 0.593 (0.006) 0.584 (0.008) 0.579 0.606 0.621 (0.008)
log(Luminosity) [L]
Cooling age [Gyr] 0.2594 0.2461
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] 12.60 (0.05) 12.46 (0.08) 12.60 12.60 (0.05) 12.46 (0.08)
Distance [pc] 79.40 (0.3) 80.24 (0.5) 79.40 79.40 (0.3) 80.24 (0.5)
Composition H
Proper motion (right ascension) [mas/yr] 122.8768457 (0.05) 122.8912822 (0.1) 122.877 (0.05) 122.8912822
Proper motion (declination) [mas/yr] -71.29580633 (0.03) -71.29565664 (0.06) -71.296 (0.03) -71.29565664
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 16.23 (0.006) 16.23 (0.006)
g magnitude 15.84 (0.003) 15.84 (0.003)
r magnitude 16.08 (0.004) 16.08 (0.004)
i magnitude 16.32 (0.005) 16.32 (0.005)
z magnitude 16.58 (0.01) 16.58 (0.01)
G magnitude 15.97 (0.002) 15.99 15.97 15.97 (0.003) 15.99
BP magnitude 15.95 (0.002) 15.95 15.95
RP magnitude 16.04 (0.004) 16.05 16.05
Pan g magnitude 15.87 (0.004)
Pan r magnitude 16.10 (0.001)
Pan i magnitude 16.35 (0.004)
Pan z magnitude 16.58 (0.005)
Pan y magnitude 16.72 (0.005)
E(B-V) 0.005

* 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.