All names: Gaia EDR3 3961999612780955008, SDSS J124919.23+280459.1, [SGR2010] J1249+2804, LAMOST J124919.22+280459.1, Gaia DR2 3961999612780955008, WIRED J124919.22+280459.1, TIC 156513619, 2MASS J12491923+2804587, WD 1246+283, SDSS J124919.22+280459.1, Gaia DR3 3961999612780955008
| 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 | 12 49 19.21 (0.7) | 12 49 19.23 | 12 49 19.22 (0.8) | 12 49 19.23 | 12 49 19.22 (0.7) | 12 49 19.30 | 12 49 19.23 | ||||
| Declination | 28 04 59.19 (0.6) | 28 04 59.11 | 28 04 59.19 (0.5) | 28 04 59.12 | 28 04 58.99 (0.6) | 28 04 51.96 | 28 04 59.11 | ||||
| Spectral type | DA+M | DA+M | DA+M4 | DA3.6+M4 | DA+M | ||||||
| Effective temperature | [K] | 13904.0 (2396) | 6300.0 (3) | ||||||||
| log(g) | [cgs] | 8.23 (0.4) | 10.00 (0.003) | ||||||||
| Mass | [M☉] | 0.75 (0.3) | |||||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | ||||||||||
| log(H/He) | |||||||||||
| log(C/He) | |||||||||||
| log(Ca/He) | |||||||||||
| log(Ca/H) | |||||||||||
| Parallax | [mas] | 2.72 (1) | 1.36 (1) | 2.72 (1) | |||||||
| Distance | [pc] | 367.91 (130) | 733.08 (549) | 411.00 (119) | 367.92 (130) | ||||||
| Composition | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -7.638083897 (0.8) | -2.788 (1) | -7.638 (0.8) | |||||||
| Proper motion (declination) | [mas/yr] | 12.58761958 (0.9) | 18.506 (0.9) | 12.588 (0.9) | |||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | WDMS | yes | WDMS | ||||||||
| B magnitude | |||||||||||
| V magnitude | |||||||||||
| R magnitude | |||||||||||
| I magnitude | |||||||||||
| J magnitude | 15.91 (0.1) | ||||||||||
| H magnitude | 15.25 (0.1) | ||||||||||
| K magnitude | 15.07 (0.01) | ||||||||||
| u magnitude | 20.09 (0.04) | 20.10 | 20.09 (0.04) | 20.11 | 20.10 (0.04) | ||||||
| g magnitude | 19.43 (0.01) | 19.46 | 19.43 (0.01) | 19.43 | 19.46 (0.02) | ||||||
| r magnitude | 18.97 (0.01) | 18.98 | 18.97 (0.01) | 18.97 | 18.98 (0.02) | ||||||
| i magnitude | 17.95 (0.008) | 17.97 | 17.95 (0.008) | 17.95 | 17.97 (0.02) | ||||||
| z magnitude | 17.29 (0.01) | 17.30 | 17.29 (0.01) | 17.29 | 17.30 (0.02) | ||||||
| G magnitude | 18.75 (0.04) | 18.64 | 18.75 (0.01) | ||||||||
| BP magnitude | 19.36 (0.04) | 19.31 | |||||||||
| RP magnitude | 17.51 (0.01) | 17.50 | |||||||||
| Pan g magnitude | 19.36 (0.02) | ||||||||||
| Pan r magnitude | 19.00 (0.02) | ||||||||||
| Pan i magnitude | 17.98 (0.005) | ||||||||||
| Pan z magnitude | 17.39 (0.004) | ||||||||||
| Pan y magnitude | 17.10 (0.009) | ||||||||||
| E(B-V) | 0.014 | ||||||||||
* 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.