All names: 2MASS J12510844+3440504, WD 1248+349, Gaia DR3 1516603980724897536, SDSS J125108.43+344050.5, [SGR2010] J1251+3440, TIC 376645098, GALEX J125108.4+344050, Gaia EDR3 1516603980724897536, Gaia DR2 1516603980724897536, SDSS J125108.43+344050.4
| 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 51 08.40 (0.09) | 12 51 08.43 | 12 51 08.40 (0.09) | 12 51 08.43 | 12 51 08.45 (0.09) | 12 51 07.73 | 12 51 08.43 | |||
| Declination | 34 40 50.33 (0.1) | 34 40 50.45 | 34 40 50.33 (0.09) | 34 40 50.41 | 34 40 50.48 (0.1) | 34 40 47.64 | 34 40 50.47 | |||
| Spectral type | DA+M | DA+M | DA2.9 M | DA+M | ||||||
| Effective temperature | [K] | 16910.0 (1092) | 6300.0 (3) | |||||||
| log(g) | [cgs] | 8.30 (0.2) | 10.00 (0.003) | |||||||
| Mass | [M☉] | 0.8 (0.2) | ||||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | |||||||||
| log(H/He) | ||||||||||
| log(C/He) | ||||||||||
| log(Ca/He) | ||||||||||
| log(Ca/H) | ||||||||||
| Parallax | [mas] | 2.31 (0.1) | 2.36 (0.1) | 2.31 (0.1) | ||||||
| Distance | [pc] | 433.49 (24) | 423.95 (23) | 433.48 (24) | ||||||
| Composition | ||||||||||
| Proper motion (right ascension) | [mas/yr] | -33.77473725 (0.1) | -33.45895643 (0.2) | -33.775 (0.1) | ||||||
| Proper motion (declination) | [mas/yr] | -9.815527659 (0.2) | -8.951565791 (0.2) | -9.816 (0.2) | ||||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | WDMS | WDMS | ||||||||
| B magnitude | ||||||||||
| V magnitude | ||||||||||
| R magnitude | ||||||||||
| I magnitude | ||||||||||
| J magnitude | 14.76 (0.03) | |||||||||
| H magnitude | 14.19 (0.06) | |||||||||
| K magnitude | 13.97 (0.06) | |||||||||
| u magnitude | 19.80 (0.03) | 19.77 | 19.80 (0.04) | 19.77 | 19.80 (0.03) | |||||
| g magnitude | 18.83 (0.009) | 18.81 | 18.83 (0.009) | 18.81 | 18.83 (0.03) | |||||
| r magnitude | 18.02 (0.007) | 18.01 | 18.02 (0.007) | 18.01 | 18.03 (0.02) | |||||
| i magnitude | 16.85 (0.005) | 16.84 | 16.85 (0.005) | 16.85 | 16.85 (0.01) | |||||
| z magnitude | 16.18 (0.007) | 16.17 | 16.18 (0.007) | 16.17 | 16.17 (0.02) | |||||
| G magnitude | 17.43 (0.02) | 17.45 | 17.43 (0.003) | |||||||
| BP magnitude | 18.54 (0.02) | 18.55 | ||||||||
| RP magnitude | 16.34 (0.005) | 16.36 | ||||||||
| Pan g magnitude | 18.71 (0.005) | |||||||||
| Pan r magnitude | 17.99 (0.007) | |||||||||
| Pan i magnitude | 16.82 (0.004) | |||||||||
| Pan z magnitude | 16.29 (0.006) | |||||||||
| Pan y magnitude | 15.98 (0.004) | |||||||||
| E(B-V) | 0.013 | |||||||||
* 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.