Gaia DR2 44478578238260864

All names: Gaia DR3 44478578238260864, J0344+1705, Gaia EDR3 44478578238260864, GALEX J034431.0+170544, SDSS J034431.02+170543.9, SDSS J034431.03+170543.9, Gaia DR2 44478578238260864, WDJ034431.03+170543.71, EPIC 210609259

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 03 44 31.03 (0.1) 03 44 31.03 03 44 31.03 03 44 31.03 (0.1) 03 44 31.03
Declination 17 05 44.18 (0.07) 17 05 44.17 17 05 44.18 17 05 43.72 (0.07) 17 05 44.17
Spectral type DA DA DA DA DA
Effective temperature [K] 8349.0 (47) 8395.0 (47) 8345.0 (47) 8320.0 8085.0 8391.0 (146)
log(g) [cgs] 7.91 (0.02) 7.97 (0.02) 7.95 (0.02) 7.94 7.85 7.93 (0.03)
Mass [M] 0.546 (0.01) 0.579 (0.02) 0.563 (0.01) 0.561 0.491 0.557 (0.03)
log(Luminosity) [L]
Cooling age [Gyr] 0.9500 0.8916 0.8918
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] 10.43 (0.1) 10.64 (0.2) 10.64 (0.2) 10.43 10.43 (0.1) 10.64 (0.2)
Distance [pc] 95.90 (1) 93.98 (1) 94.00 (1) 95.90 95.90 (1) 94.00 (1)
Composition H H
Proper motion (right ascension) [mas/yr] -1.560835844 (0.1) -1.213156672 (0.4) -1.561 (0.1) -1.213156672
Proper motion (declination) [mas/yr] 28.98845566 (0.09) 29.24122175 (0.2) 28.988 (0.09) 29.24122175
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude 17.28 (0.03)
H magnitude
K magnitude
u magnitude 18.15 (0.02) 18.10 (0.01) 18.10 (0.01)
g magnitude 17.67 (0.005) 17.67 (0.005)
r magnitude 17.65 (0.006) 17.65 (0.006)
i magnitude 17.71 (0.007) 17.71 (0.007)
z magnitude 17.83 (0.02) 17.83 (0.02)
G magnitude 17.59 (0.01) 17.61 17.59 17.59 (0.003) 17.61
BP magnitude 17.70 (0.01) 17.69 17.69
RP magnitude 17.39 (0.01) 17.36 17.36
Pan g magnitude 17.68 (0.003) 17.68 (0.003)
Pan r magnitude 17.64 (0.006) 17.64 (0.007)
Pan i magnitude 17.69 (0.008) 17.69 (0.009)
Pan z magnitude 17.82 (0.005) 17.82 (0.005)
Pan y magnitude 17.85 (0.03) 17.85 (0.02)
E(B-V) 0.007

* 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.