All names: [SGR2010] J1312+0020, LBQS 1309+0036, GALEX J131208.1+002058, LAMOST J131208.11+002058.0, SDSS J131208.10+002057.9, 2QZ J131208.1+002058, 2MASS J13120812+0020579, Gaia DR2 3687768287393354880, SDSS J131208.11+002058.0, WD 1309+006, SDSS J131208.12+002058.0, TIC 366786986, Gaia EDR3 3687768287393354880, SDSS J131208.12+002057.9, LAMOST J131208.10+002057.9, Gaia DR3 3687768287393354880
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | sdss-wdms.org (29/04/2016) | Guo et al. 2015 | Simbad | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 13 12 08.06 (0.2) | 13 12 08.12 | 13 12 08.06 (0.2) | 13 12 08.11 | 13 12 08.12 (0.2) | 13 12 07.58 | 13 12 08.11 | ||||
| Declination | 00 20 57.73 (0.1) | 00 20 57.98 | 00 20 57.73 (0.1) | 00 20 57.95 | 00 20 57.95 (0.1) | 00 20 53.16 | 00 20 57.95 | ||||
| Spectral type | DA+M | DA+M | DA+M4 | DA2.8+M4 | DA+M | ||||||
| Effective temperature | [K] | 17505.0 (270) | 8238.0 (26) | ||||||||
| log(g) | [cgs] | 7.81 (0.06) | 5.83 (0.07) | ||||||||
| Mass | [M☉] | 0.52 (0.03) | |||||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | ||||||||||
| log(H/He) | |||||||||||
| log(C/He) | |||||||||||
| log(Ca/He) | |||||||||||
| log(Ca/H) | |||||||||||
| Parallax | [mas] | 2.44 (0.2) | 2.44 (0.3) | 2.44 (0.2) | |||||||
| Distance | [pc] | 409.93 (31) | 410.39 (44) | 418.00 (16) | 409.94 (31) | ||||||
| Composition | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -50.95460679 (0.2) | -50.88366196 (0.5) | -50.955 (0.2) | |||||||
| Proper motion (declination) | [mas/yr] | -13.63251951 (0.2) | -13.60240417 (0.2) | -13.633 (0.2) | |||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | WDMS | yes | WDMS | ||||||||
| B magnitude | |||||||||||
| V magnitude | |||||||||||
| R magnitude | |||||||||||
| I magnitude | |||||||||||
| J magnitude | 15.62 (0.08) | ||||||||||
| H magnitude | 15.03 (0.08) | ||||||||||
| K magnitude | 14.79 (0.1) | ||||||||||
| u magnitude | 18.79 (0.02) | 18.75 | 18.75 (0.02) | 18.76 | 18.75 (0.03) | ||||||
| g magnitude | 18.47 (0.007) | 18.49 | 18.45 (0.007) | 18.46 | 18.49 (0.02) | ||||||
| r magnitude | 18.35 (0.008) | 18.35 | 18.34 (0.008) | 18.34 | 18.35 (0.01) | ||||||
| i magnitude | 17.56 (0.007) | 17.56 | 17.56 (0.006) | 17.56 | 17.56 (0.01) | ||||||
| z magnitude | 16.93 (0.01) | 16.92 | 16.91 (0.01) | 16.92 | 16.92 (0.03) | ||||||
| G magnitude | 17.96 (0.02) | 17.96 | 17.96 (0.003) | ||||||||
| BP magnitude | 18.50 (0.02) | 18.51 | |||||||||
| RP magnitude | 17.10 (0.005) | 17.13 | |||||||||
| Pan g magnitude | 18.48 (0.007) | ||||||||||
| Pan r magnitude | 18.35 (0.005) | ||||||||||
| Pan i magnitude | 17.57 (0.004) | ||||||||||
| Pan z magnitude | 17.06 (0.003) | ||||||||||
| Pan y magnitude | 16.78 (0.006) | ||||||||||
| E(B-V) | 0.023 | ||||||||||
* 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.