Gaia DR2 945007674022721280

All names: LAMOST J063416.59+384855.6, Gaia EDR3 945007674022721280, GD 260, WDJ063416.66+384856.75, GALEX J063416.6+384856, 2MASS J06341665+3848566, WDJ063416.66+384856.76, J0634+3848, UCAC4 645-038792, Gaia DR2 945007674022721280, Gaia DR3 945007674022721280

Parameter Unit Gaia EDR3 Pan-STARRS DR1 Jewett et al. 2024 Vincent et al. 2020 MWDD H MWDD HE Gaia DR2 Stilism Guo et al. 2015 Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018
Right ascension 06 34 16.58 (0.04) 06 34 16.58 06 34 16.58 06 34 16.66 (0.04) 06 34 16.58
Declination 38 48 55.04 (0.04) 38 48 55.09 38 48 55.04 38 48 56.75 (0.04) 38 48 55.09
Spectral type DA DA DA DA
Effective temperature [K] 12210.0 (106) 12210.0 (106) 12210.0 12483.0 12088.0 (114)
log(g) [cgs] 8.50 8.50 8.47 8.49 (0.009)
Mass [M] 0.926 (0.006) 0.926 (0.008) 0.926 0.889 0.917 (0.008)
log(Luminosity) [L]
Cooling age [Gyr] 0.8100 (0.02) 0.7726 0.7138
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] 21.88 (0.04) 21.88 (0.1) 21.88 21.88 (0.04) 21.88 (0.1)
Distance [pc] 45.70 (0.09) 45.71 (0.2) 45.70 45.70 (0.09) 45.71 (0.2)
Composition H
Proper motion (right ascension) [mas/yr] -58.33587817 (0.04) -58.52912266 (0.1) -58.336 (0.04) -58.52912266
Proper motion (declination) [mas/yr] -107.0406822 (0.04) -107.1302925 (0.1) -107.041 (0.04) -107.1302925
Variability NOV
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 15.85 (0.05)
V magnitude 15.69 (0.08)
R magnitude 15.93 (0.2)
I magnitude
J magnitude 15.85 (0.08)
H magnitude 16.11 (0.2)
K magnitude
u magnitude
g magnitude 15.70 (0.04)
r magnitude 15.91 (0.09)
i magnitude 16.37 (0.01)
z magnitude
G magnitude 15.74 (0.003) 15.75 15.74 15.74 (0.003) 15.75
BP magnitude 15.74 (0.003) 15.72 15.72
RP magnitude 15.75 (0.004) 15.75 15.75
Pan g magnitude 15.68 (0.004)
Pan r magnitude 15.85 (0.003)
Pan i magnitude 16.08 (0.004)
Pan z magnitude 16.28 (0.007)
Pan y magnitude 16.42 (0.006)
E(B-V) 0.001

* 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.