Ton 443

All names: WD 0938+299, 2MASS J09412682+2945032, LAMOST J094126.79+294503.3, Ton 443, TON 443, PG 0938+299, CBS 30, Gaia DR3 696535294732371072, TIC 125552428, SDSS J094126.79+294503.4, LAMOST J094126.78+294503.5, Gaia DR2 696535294732371072, LAMOST J094126.78+294503.3, GALEX J094126.7+294503, LAMOST J094126.79+294503.39, SDSS J094126.79+294503.3, Gaia EDR3 696535294732371072

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H Gaia DR2 Stilism Guo et al. 2015 Zhao et al. 2013 Gianninas et al. 2011 Liebert et al. 2005 Vincent et al. 2024 Simbad White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 09 41 26.78 (0.05) 09 41 26.79 09 41 26.78 (0.07) 09 41 26.79 09 41 26.78 09 41 26.79 (0.05) 09 41 26.76 09 41 26.79
Declination 29 45 02.92 (0.04) 29 45 03.40 29 45 02.93 (0.07) 29 45 03.39 29 45 02.92 29 45 03.49 (0.04) 29 45 07.20 29 45 03.38
Spectral type DA DA DA DA DA2.4 DA2 DA DA
Effective temperature [K] 18416.0 22026.0 (186) 21798.0 (267) 20870.0 (329) 19750.0 (311) 19944.0 (265) 20818.0 (86)
log(g) [cgs] 7.95 8.14 (0.03) 8.15 (0.04) 8.14 (0.05) 8.14 (0.05) 8.01 (0.01) 8.00 (0.01)
Mass [M] 0.59 0.71 (0.02) 0.72 (0.03) 0.71 (0.03) 0.71 (0.03) 0.628 (0.01) 0.624 (0.005)
log(Luminosity) [L] -1.72
Cooling age [Gyr] 0.0864 0.0680 (0.01) 0.1318
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] 8.85 (0.06) 8.99 (0.08) 8.85 8.85 (0.06)
Distance [pc] 113.01 (0.8) 111.19 (1) 106.00 108.00 105.00 113.01 113.01 (0.8)
Composition H H
Proper motion (right ascension) [mas/yr] -6.631794576 (0.07) -6.437523487 (0.1) -6.632 (0.07)
Proper motion (declination) [mas/yr] -35.80227615 (0.05) -35.94429748 (0.1) -35.802 (0.05)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 15.00
V magnitude 16.08
R magnitude
I magnitude
J magnitude 16.62 (0.1)
H magnitude
K magnitude
u magnitude 15.90 (0.005) 15.88 15.89 (0.005) 15.89 (0.01)
g magnitude 15.86 (0.004) 15.91 15.86 (0.004) 15.91 (0.02)
r magnitude 16.25 (0.004) 16.25 16.25 (0.004) 16.25 (0.02)
i magnitude 16.55 (0.005) 16.55 16.55 (0.005) 16.54 (0.02)
z magnitude 16.86 (0.009) 16.87 16.86 (0.009) 16.86 (0.02)
G magnitude 16.07 (0.003) 16.10 16.07 16.07 (0.003)
BP magnitude 15.99 (0.003) 15.96
RP magnitude 16.27 (0.003) 16.27
Pan g magnitude 15.93 (0.005)
Pan r magnitude 16.27 (0.007)
Pan i magnitude 16.58 (0.003)
Pan z magnitude 16.83 (0.004)
Pan y magnitude 17.00 (0.01)
E(B-V) 0.005

* 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.