All names: GALEX J095940.2+003633, SDSS J095940.23+003634.1, LAMOST J095940.23+003634.1, WD 0957+008, SDSS J095940.23+003634.0, Gaia EDR3 3833641594561831168, 2QZ J095940.1+003634, SDSS J095940.23+003634.2, Gaia DR3 3833641594561831168, Gaia DR2 3833641594561831168
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Stilism | Guo et al. 2015 | Tremblay et al. 2011 | Harris et al. 2003 | Vincent et al. 2024 | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Kleinman et al. 2004 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 09 59 40.26 (0.2) | 09 59 40.24 | 09 59 40.26 | 09 59 40.24 (0.2) | 09 59 40.24 | 09 59 40.18 | 09 59 40.23 | 09 59 40.23 | |||||||
| Declination | 00 36 33.63 (0.2) | 00 36 34.08 | 00 36 33.63 | 00 36 34.04 (0.2) | 00 36 34.03 | 00 36 29.52 | 00 36 34.17 | 00 36 34.16 | |||||||
| Spectral type | DA | DA | DA4 | DA | DA4 | DA | DA3.0 | DA | DA | ||||||
| Effective temperature | [K] | 10910.0 (140) | 11446.0 (571) | 10751.0 (78) | 10692.0 (84) | 16563.0 (484) | |||||||||
| log(g) | [cgs] | 8.26 (0.09) | 7.17 (0.09) | 8.27 (0.07) | 8.22 (0.08) | 7.64 (0.07) | |||||||||
| Mass | [M☉] | 0.77 (0.06) | 0.263 (0.03) | 0.73 (0.05) | |||||||||||
| log(Luminosity) | [L☉] | ||||||||||||||
| Cooling age | [Gyr] | 0.7413 | |||||||||||||
| 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] | 2.59 (0.2) | 2.59 | 2.59 (0.2) | |||||||||||
| Distance | [pc] | 385.52 (31) | 385.52 | 385.52 (31) | |||||||||||
| Composition | H | ||||||||||||||
| Proper motion (right ascension) | [mas/yr] | 20.79844378 (0.2) | 20.798 (0.2) | 24.9 | 25.0 | ||||||||||
| Proper motion (declination) | [mas/yr] | -25.40696377 (0.3) | -25.407 (0.3) | -29.1 | -28.0 | ||||||||||
| Variability | |||||||||||||||
| Magnetic | |||||||||||||||
| Bd | [MG] | ||||||||||||||
| Infrared excess (disk) | |||||||||||||||
| Binarity | |||||||||||||||
| B magnitude | 18.55 | ||||||||||||||
| V magnitude | |||||||||||||||
| R magnitude | |||||||||||||||
| I magnitude | |||||||||||||||
| J magnitude | 18.71 (0.06) | ||||||||||||||
| H magnitude | 18.80 (0.2) | ||||||||||||||
| K magnitude | |||||||||||||||
| u magnitude | 18.94 (0.02) | 18.91 | 18.94 (0.02) | 18.93 (0.03) | 18.91 | 18.94 (0.02) | 18.91 (0.1) | ||||||||
| g magnitude | 18.53 (0.008) | 18.50 | 18.54 (0.008) | 18.55 (0.02) | 18.50 | 18.56 (0.02) | 18.50 (0.05) | ||||||||
| r magnitude | 18.72 (0.01) | 18.81 | 18.75 (0.01) | 18.74 (0.01) | 18.82 | 18.75 (0.01) | 18.82 (0.03) | ||||||||
| i magnitude | 18.93 (0.01) | 18.95 | 18.93 (0.01) | 18.91 (0.02) | 18.95 | 18.93 (0.02) | 18.95 (0.03) | ||||||||
| z magnitude | 19.07 (0.05) | 19.10 | 19.07 (0.05) | 19.05 (0.05) | 19.11 | 19.07 (0.05) | 19.11 (0.07) | ||||||||
| G magnitude | 18.62 (0.03) | 18.62 | 18.62 (0.004) | ||||||||||||
| BP magnitude | 18.68 (0.03) | ||||||||||||||
| RP magnitude | 18.67 (0.04) | ||||||||||||||
| Pan g magnitude | 18.55 (0.01) | ||||||||||||||
| Pan r magnitude | 18.73 (0.01) | ||||||||||||||
| Pan i magnitude | 18.94 (0.008) | ||||||||||||||
| Pan z magnitude | 19.13 (0.02) | ||||||||||||||
| Pan y magnitude | 19.11 (0.06) | ||||||||||||||
| E(B-V) | 0.028 | ||||||||||||||
* 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.