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
Spectra without link are available upon request
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.