Gaia DR2 2252512954353689344

All names: Gaia EDR3 2252512954353689344, SDSS J191826.49+625802.6, J1918+6258, WDJ191826.49+625802.50, Gaia DR3 2252512954353689344, GALEX J191826.5+625802, Gaia DR2 2252512954353689344, WDJ191826.49+625802.49

Parameter Unit Gaia EDR3 Pan-STARRS DR1 Kilic et al. 2025 Caron et al. 2023 Kilic et al. 2020 MWDD H MWDD HE Gaia DR2 Stilism Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018
Right ascension 19 18 26.50 (0.08) 19 18 26.50 19 18 26.50 19 18 26.49 (0.08) 19 18 26.50
Declination 62 58 02.75 (0.08) 62 58 02.74 62 58 02.75 62 58 02.49 (0.08) 62 58 02.74
Spectral type DA DA DA DA DA
Effective temperature [K] 7833.0 (44) 7791.0 (43) 7832.0 (44) 7863.0 7577.0 7895.0 (104)
log(g) [cgs] 8.06 (0.01) 8.06 (0.01) 8.07 (0.01) 8.07 7.97 8.07 (0.02)
Mass [M] 0.629 (0.01) 0.628 (0.01) 0.634 (0.01) 0.639 0.558 0.634 (0.02)
log(Luminosity) [L]
Cooling age [Gyr] 1.2900 1.2460 1.2310
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] 12.64 (0.09) 12.71 (0.1) 12.71 (0.1) 12.64 12.64 (0.09) 12.71 (0.1)
Distance [pc] 79.12 (0.5) 78.68 (0.6) 78.69 (0.6) 79.12 79.12 (0.5) 78.69 (0.6)
Composition H H
Proper motion (right ascension) [mas/yr] 1.827742003 (0.1) 1.904716157 (0.2) 1.828 (0.1) 1.904716157
Proper motion (declination) [mas/yr] 15.95106095 (0.1) 15.75842559 (0.2) 15.951 (0.1) 15.75842559
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.19 (0.02) 18.18 (0.02) 18.18 (0.02)
g magnitude 17.72 (0.005) 17.72 (0.005)
r magnitude 17.62 (0.006) 17.62 (0.006)
i magnitude 17.64 (0.007) 17.64 (0.007)
z magnitude 17.76 (0.02) 17.76 (0.02)
G magnitude 17.58 (0.008) 17.60 17.58 17.58 (0.003) 17.60
BP magnitude 17.73 (0.008) 17.72 17.72
RP magnitude 17.34 (0.01) 17.32 17.32
Pan g magnitude 17.71 (0.005) 17.71 (0.003)
Pan r magnitude 17.64 (0.004) 17.64 (0.004)
Pan i magnitude 17.66 (0.003) 17.66 (0.003)
Pan z magnitude 17.75 (0.007) 17.75 (0.008)
Pan y magnitude 17.82 (0.01) 17.82 (0.02)
E(B-V) 0.010

* 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.