Gaia DR2 4539136259802013952

All names: WDJ184335.59+274026.97, GD 381, UCAC4 589-067210, 18435+2740, PM J18435+2740, Gaia EDR3 4539136259802013952, J1843+2740, Gaia DR3 4539136259802013952, GALEX J184335.5+274026, Gaia DR2 4539136259802013952

Parameter Unit Gaia EDR3 Pan-STARRS DR1 Vincent et al. 2020 MWDD H MWDD HE Gaia DR2 Stilism Limoges et al. 2015 Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018
Right ascension 18 43 35.64 (0.01) 18 43 35.64 (0.02) 18 43 35.64 18 43 35.59 (0.01) 18 43 35.64
Declination 27 40 25.40 (0.02) 27 40 25.45 (0.02) 27 40 25.40 27 40 26.97 (0.02) 27 40 25.45
Spectral type DA DA DA
Effective temperature [K] 10566.0 (57) 10566.0 10901.0 11060.0 (163) 10793.0 (43)
log(g) [cgs] 8.00 7.97 8.10 (0.05) 8.04 (0.005)
Mass [M] 0.603 (0.006) 0.603 0.564 0.66 (0.03) 0.626 (0.005)
log(Luminosity) [L] -2.71
Cooling age [Gyr] 0.5231 0.4757
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] 24.89 (0.02) 24.87 (0.03) 24.89 24.89 (0.02) 24.87 (0.03)
Distance [pc] 40.17 (0.03) 40.21 (0.04) 39.70 (2) 40.17 40.17 (0.03) 40.21 (0.04)
Composition H
Proper motion (right ascension) [mas/yr] 45.20999359 (0.02) 45.31539996 (0.04) 45.21 (0.02) 45.31539996
Proper motion (declination) [mas/yr] -98.1378444 (0.02) -98.12607313 (0.05) -98.138 (0.02) -98.12607313
Variability VAR
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude 15.18 (0.09)
I magnitude
J magnitude 13.98
H magnitude 13.34
K magnitude 13.14
u magnitude
g magnitude
r magnitude
i magnitude
z magnitude
G magnitude 15.02 (0.001) 15.04 15.02 15.02 (0.003) 15.04
BP magnitude 15.05 (0.001) 15.05 15.05
RP magnitude 14.97 (0.002) 14.98 14.98
Pan g magnitude 14.98 (0.003)
Pan r magnitude 15.14 (0.002)
Pan i magnitude 15.29 (0.005)
Pan z magnitude 15.46 (0.006)
Pan y magnitude 15.58 (0.004)
E(B-V) 0.004

* 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.