All names: [HHD2009] SDSS J0957+0030, WD 0954+007, 2QZ J095705.6+003046, Gaia DR2 3834305566440840704, SDSS J095705.70+003046.9, Gaia EDR3 3834305566440840704, SDSS J095705.70+003046.8, Gaia DR3 3834305566440840704, SDSS J095705.70+003046.7
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Stilism | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Kleinman et al. 2004 |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 09 57 05.69 (0.8) | 09 57 05.71 (0.8) | 09 57 05.70 | 09 57 05.14 | 09 57 05.70 | 09 57 05.70 | |||
| Declination | 00 30 46.87 (1) | 00 30 46.85 (1) | 00 30 46.88 | 00 30 41.40 | 00 30 46.84 | 00 30 46.84 | |||
| Spectral type | DA+dM | DA+M: | DA3.8 | DA | |||||
| Effective temperature | [K] | 13659.0 (763) | 13842.0 (783) | 13098.0 (759) | |||||
| log(g) | [cgs] | 7.92 (0.2) | 7.98 (0.2) | 7.86 (0.2) | |||||
| Mass | [M☉] | ||||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | 1.15 (0.9) | 1.15 (0.9) | ||||||
| Distance | [pc] | 869.56 (655) | 869.57 (655) | ||||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | -11.75561568 (1) | -11.756 (1) | ||||||
| Proper motion (declination) | [mas/yr] | 1.462557558 (2) | 1.463 (2) | ||||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | WDMS | ||||||||
| B magnitude | |||||||||
| V magnitude | |||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | |||||||||
| H magnitude | |||||||||
| K magnitude | |||||||||
| u magnitude | 20.64 (0.07) | 20.63 (0.07) | 20.71 | 20.65 (0.07) | 20.71 (0.09) | ||||
| g magnitude | 20.28 (0.02) | 20.28 (0.03) | 20.30 | 20.29 (0.03) | 20.30 (0.03) | ||||
| r magnitude | 20.49 (0.03) | 20.50 (0.03) | 20.54 | 20.51 (0.03) | 20.54 (0.05) | ||||
| i magnitude | 20.71 (0.06) | 20.72 (0.06) | 20.74 | 20.74 (0.06) | 20.74 (0.09) | ||||
| z magnitude | 21.21 (0.3) | 21.20 (0.3) | 20.51 | 21.22 (0.3) | 20.51 (0.2) | ||||
| G magnitude | 20.43 (0.1) | 20.43 (0.009) | |||||||
| BP magnitude | 20.58 (0.1) | ||||||||
| RP magnitude | 20.08 (0.1) | ||||||||
| Pan g magnitude | 20.34 (0.02) | ||||||||
| Pan r magnitude | 20.51 (0.07) | ||||||||
| Pan i magnitude | 20.85 (0.09) | ||||||||
| Pan z magnitude | 20.97 (0.03) | ||||||||
| Pan y magnitude | |||||||||
| E(B-V) | 0.029 | ||||||||
* 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.