All names: Gaia DR2 1038329200174256128, SDSS J092226.02+590750.7, GALEX J092226.0+590752, SDSS J092226.01+590750.7, GALEX J092225.9+590749, SDSS J092226.01+590750.6, [HHD2009] SDSS J0922+5907, Gaia DR3 1038329200174256128, WD 0918+593, Gaia EDR3 1038329200174256128, SDSS J092226.00+590750.7, SDSS J092226.00+590750.6
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 09 22 26.02 (0.4) | 09 22 26.01 | 09 22 26.02 (0.6) | 09 22 26.01 (0.4) | 09 22 26.01 | 09 22 25.68 | 09 22 26.02 | ||||
| Declination | 59 07 50.60 (0.4) | 59 07 50.70 | 59 07 50.60 (0.6) | 59 07 50.70 (0.4) | 59 07 50.70 | 59 07 46.92 | 59 07 50.72 | ||||
| Spectral type | DA+dM | DA+M: | DA+M | DA | DA | ||||||
| Effective temperature | [K] | 10315.0 (775) | 10443.0 (266) | ||||||||
| log(g) | [cgs] | 8.77 (0.3) | 9.01 (0.2) | ||||||||
| Mass | [M☉] | 1.169 (0.09) | |||||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | ||||||||||
| log(H/He) | |||||||||||
| log(C/He) | |||||||||||
| log(Ca/He) | |||||||||||
| log(Ca/H) | |||||||||||
| Parallax | [mas] | 0.93 (0.5) | 0.92 (0.7) | 0.93 (0.5) | |||||||
| Distance | [pc] | 1079.96 (595) | 1089.74 (875) | 1079.91 (595) | |||||||
| Composition | |||||||||||
| Proper motion (right ascension) | [mas/yr] | 6.639788703 (0.4) | 7.21537824 (1) | 6.64 (0.4) | -1.3 | ||||||
| Proper motion (declination) | [mas/yr] | -6.450294798 (0.5) | -5.746876481 (1) | -6.45 (0.5) | -16.1 | ||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | WDMS | yes | |||||||||
| B magnitude | |||||||||||
| V magnitude | |||||||||||
| R magnitude | |||||||||||
| I magnitude | |||||||||||
| J magnitude | |||||||||||
| H magnitude | |||||||||||
| K magnitude | |||||||||||
| u magnitude | 20.25 (0.05) | 20.25 (0.05) | 20.25 (0.05) | 20.23 | 20.27 (0.05) | ||||||
| g magnitude | 20.12 (0.02) | 20.12 (0.02) | 20.14 (0.02) | 20.13 | 20.15 (0.02) | ||||||
| r magnitude | 20.32 (0.03) | 20.32 (0.03) | 20.36 (0.03) | 20.36 | 20.36 (0.03) | ||||||
| i magnitude | 20.45 (0.05) | 20.45 (0.05) | 20.48 (0.05) | 20.48 | 20.49 (0.05) | ||||||
| z magnitude | 20.10 (0.1) | 20.10 (0.1) | 20.14 (0.1) | 20.13 | 20.15 (0.1) | ||||||
| G magnitude | 20.19 (0.07) | 20.25 | 20.19 (0.005) | ||||||||
| BP magnitude | 20.26 (0.07) | 20.09 | |||||||||
| RP magnitude | 20.23 (0.08) | 20.15 | |||||||||
| Pan g magnitude | 20.14 (0.01) | ||||||||||
| Pan r magnitude | 20.37 (0.02) | ||||||||||
| Pan i magnitude | 20.48 (0.03) | ||||||||||
| Pan z magnitude | 20.35 (0.05) | ||||||||||
| Pan y magnitude | 20.03 (0.07) | ||||||||||
| E(B-V) | 0.030 | ||||||||||
* 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.