All names: GALEX J124702.7+313448, TIC 5111944, Gaia DR3 1513473426306676096, LAMOST J124702.75+313448.7, SDSS J124702.76+313448.8, Gaia DR2 1513473426306676096, Gaia EDR3 1513473426306676096, WIRED J124702.75+313448.7, 2MASS J12470277+3134484, SDSS J124702.75+313448.7, WD 1244+318
| 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 | 12 47 02.74 (0.2) | 12 47 02.76 | 12 47 02.74 (0.2) | 12 47 02.75 | 12 47 02.75 (0.2) | 12 47 02.57 | 12 47 02.76 | |||
| Declination | 31 34 48.61 (0.1) | 31 34 48.76 | 31 34 48.62 (0.1) | 31 34 48.68 | 31 34 48.84 (0.1) | 31 34 44.04 | 31 34 48.77 | |||
| Spectral type | DA+M | DA+M | DA2.0 M | DA+M | ||||||
| Effective temperature | [K] | 25595.0 (1859) | 6300.0 (3) | |||||||
| log(g) | [cgs] | 8.22 (0.2) | 10.00 (0.003) | |||||||
| Mass | [M☉] | 0.77 (0.1) | ||||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | |||||||||
| log(H/He) | ||||||||||
| log(C/He) | ||||||||||
| log(Ca/He) | ||||||||||
| log(Ca/H) | ||||||||||
| Parallax | [mas] | 1.11 (0.2) | 1.06 (0.2) | 1.11 (0.2) | ||||||
| Distance | [pc] | 903.43 (160) | 940.74 (212) | 426.00 (101) | 903.42 (160) | |||||
| Composition | ||||||||||
| Proper motion (right ascension) | [mas/yr] | -9.954550471 (0.2) | -10.03704689 (0.3) | -9.955 (0.2) | ||||||
| Proper motion (declination) | [mas/yr] | -14.16686106 (0.2) | -14.04713192 (0.2) | -14.167 (0.2) | ||||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | WDMS | WDMS | ||||||||
| B magnitude | ||||||||||
| V magnitude | ||||||||||
| R magnitude | ||||||||||
| I magnitude | ||||||||||
| J magnitude | 16.10 (0.09) | |||||||||
| H magnitude | 15.41 (0.1) | |||||||||
| K magnitude | 15.81 (0.08) | |||||||||
| u magnitude | 19.46 (0.03) | 19.44 | 19.46 (0.03) | 19.44 | 19.46 (0.04) | |||||
| g magnitude | 19.27 (0.01) | 19.25 | 19.27 (0.01) | 19.25 | 19.27 (0.03) | |||||
| r magnitude | 19.02 (0.01) | 19.01 | 19.02 (0.01) | 19.01 | 19.03 (0.02) | |||||
| i magnitude | 18.11 (0.009) | 18.11 | 18.12 (0.008) | 18.11 | 18.12 (0.02) | |||||
| z magnitude | 17.47 (0.02) | 17.44 | 17.47 (0.01) | 17.44 | 17.45 (0.02) | |||||
| G magnitude | 18.60 (0.03) | 18.61 | 18.60 (0.003) | |||||||
| BP magnitude | 19.34 (0.03) | 19.29 | ||||||||
| RP magnitude | 17.68 (0.01) | 17.69 | ||||||||
| Pan g magnitude | 19.26 (0.008) | |||||||||
| Pan r magnitude | 19.02 (0.01) | |||||||||
| Pan i magnitude | 18.12 (0.005) | |||||||||
| Pan z magnitude | 17.59 (0.005) | |||||||||
| Pan y magnitude | 17.30 (0.009) | |||||||||
| E(B-V) | 0.012 | |||||||||
* 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.