Gaia DR2 4321498378443922816

All names: Gaia EDR3 4321498378443922816, WDJ192814.57+152638.51, Gaia DR3 4321498378443922816, SDSS J192814.56+152638.5, J1928+1526, Gaia DR2 4321498378443922816, SDSS J192814.57+152638.6

Parameter Unit Gaia EDR3 Pan-STARRS DR1 Kilic et al. 2025 Jewett et al. 2024 Vincent et al. 2020 Kilic et al. 2020 MWDD H MWDD HE Gaia DR2 Stilism Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018
Right ascension 19 28 14.56 (0.08) 19 28 14.56 19 28 14.56 19 28 14.57 (0.08) 19 28 14.56
Declination 15 26 38.84 (0.08) 15 26 38.83 15 26 38.84 15 26 38.51 (0.08) 15 26 38.83
Spectral type DA DA DA DA DA
Effective temperature [K] 11621.0 (141) 11621.0 (141) 11543.0 (136) 11623.0 (141) 11596.0 11682.0 12243.0 (343)
log(g) [cgs] 8.64 (0.01) 8.64 8.64 (0.02) 8.63 8.58 8.69 (0.03)
Mass [M] 1.011 (0.01) 1.011 (0.01) 1.002 (0.01) 1.007 (0.01) 1.005 0.958 1.041 (0.02)
log(Luminosity) [L]
Cooling age [Gyr] 1.3100 (0.08) 1.2420 1.0780
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] 10.26 (0.1) 10.21 (0.1) 10.26 10.26 (0.1) 10.21 (0.1)
Distance [pc] 97.42 (1) 97.94 (1) 97.42 97.42 (1) 97.94 (1)
Composition H H
Proper motion (right ascension) [mas/yr] -8.222101378 (0.1) -8.004375308 (0.2) -8.222 (0.1) -8.004375308
Proper motion (declination) [mas/yr] 20.24051259 (0.09) 20.27247865 (0.2) 20.241 (0.09) 20.27247865
Variability NOV
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.02 (0.01) 18.02 (0.01)
g magnitude 17.67 (0.005) 17.67 (0.005)
r magnitude 17.84 (0.006) 17.84 (0.006)
i magnitude 18.02 (0.009) 18.02 (0.009)
z magnitude 18.25 (0.03) 18.25 (0.03)
G magnitude 17.73 (0.008) 17.76 17.73 17.73 (0.003) 17.76
BP magnitude 17.75 (0.008) 17.72 17.72
RP magnitude 17.73 (0.02) 17.76 17.76
Pan g magnitude 17.70 (0.004)
Pan r magnitude 17.84 (0.004)
Pan i magnitude 18.05 (0.007)
Pan z magnitude 18.24 (0.01)
Pan y magnitude 18.37 (0.02)
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.