All names: SDSS J095737.68+300136.5, Gaia DR2 744035189189593728, Gaia EDR3 744035189189593728, [HHD2009] SDSS J0957+3001, SDSS J095737.60+300136.6, GALEX J095737.5+300136, TIC 4989339, SDSS J095737.59+300136.5, 2MASS J09573758+3001364, Gaia DR3 744035189189593728, WD 0954+302, WIRED J095737.59+300136.5, LAMOST J095737.59+300136.5
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | sdss-wdms.org (29/04/2016) | Simbad | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 09 57 37.60 (0.1) | 09 57 37.59 | 09 57 37.60 (0.2) | 09 57 37.59 | 09 57 37.60 (0.1) | 09 57 37.70 | 09 57 37.60 | |||
| Declination | 30 01 36.47 (0.1) | 30 01 36.55 | 30 01 36.47 (0.2) | 30 01 36.52 | 30 01 36.61 (0.1) | 30 01 34.68 | 30 01 36.57 | |||
| Spectral type | DA+M | DA+M | DA dM | DA+M | ||||||
| Effective temperature | [K] | 28064.0 (848) | 8432.0 (66) | |||||||
| log(g) | [cgs] | 7.51 (0.1) | 8.34 (0.08) | |||||||
| Mass | [M☉] | 0.42 (0.06) | ||||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | |||||||||
| log(H/He) | ||||||||||
| log(C/He) | ||||||||||
| log(Ca/He) | ||||||||||
| log(Ca/H) | ||||||||||
| Parallax | [mas] | 1.35 (0.2) | 1.41 (0.3) | 1.35 (0.2) | ||||||
| Distance | [pc] | 739.13 (90) | 708.82 (126) | 298.00 (35) | 739.15 (90) | |||||
| Composition | ||||||||||
| Proper motion (right ascension) | [mas/yr] | 2.97489874 (0.2) | 3.218840407 (0.3) | 2.975 (0.2) | ||||||
| Proper motion (declination) | [mas/yr] | -9.170243467 (0.1) | -9.201019441 (0.3) | -9.17 (0.1) | ||||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | WDMS | WDMS | ||||||||
| B magnitude | ||||||||||
| V magnitude | ||||||||||
| R magnitude | ||||||||||
| I magnitude | ||||||||||
| J magnitude | 16.66 (0.1) | |||||||||
| H magnitude | 15.90 (0.1) | |||||||||
| K magnitude | 16.09 (0.2) | |||||||||
| u magnitude | 18.48 (0.02) | 18.49 | 18.48 (0.02) | 18.48 | 18.49 (0.02) | |||||
| g magnitude | 18.59 (0.008) | 18.59 | 18.58 (0.008) | 18.58 | 18.59 (0.02) | |||||
| r magnitude | 18.78 (0.01) | 18.78 | 18.79 (0.01) | 18.78 | 18.78 (0.02) | |||||
| i magnitude | 18.38 (0.01) | 18.38 | 18.38 (0.01) | 18.38 | 18.38 (0.02) | |||||
| z magnitude | 17.93 (0.02) | 17.92 | 17.93 (0.02) | 17.91 | 17.92 (0.03) | |||||
| G magnitude | 18.46 (0.02) | 18.47 | 18.46 (0.003) | |||||||
| BP magnitude | 18.69 (0.02) | 18.64 | ||||||||
| RP magnitude | 17.97 (0.01) | 17.96 | ||||||||
| Pan g magnitude | 18.63 (0.008) | |||||||||
| Pan r magnitude | 18.77 (0.004) | |||||||||
| Pan i magnitude | 18.37 (0.005) | |||||||||
| Pan z magnitude | 18.02 (0.005) | |||||||||
| Pan y magnitude | 17.80 (0.02) | |||||||||
| E(B-V) | 0.019 | |||||||||
* 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.