All names: Gaia DR2 3895188308410658176, SDSS_J121048.45+054924.3, Gaia DR2 3895188304115889152, Gaia EDR3 3895188308410658176, WD 1208+061, WISE J121048.43+054923.4, 2MASS J12104851+0549239, SDSS J121048.47+054923.2
| Parameter | Unit | Gaia EDR3 | Gaia DR2 | SDSS DR12 | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|
| Right ascension | 12 10 48.38 (0.4) | 12 10 48.39 (0.5) | 12 10 48.46 | 12 10 48.48 (0.9) | 12 10 48.46 | 12 10 48.46 | |
| Declination | 05 49 24.38 (0.2) | 05 49 24.38 (0.2) | 05 49 24.30 | 05 49 23.24 (0.3) | 05 49 24.37 | 05 49 18.84 | |
| Spectral type | dM | DA+M | DA | ||||
| Effective temperature | [K] | 14819.0 (453) | |||||
| log(g) | [cgs] | 6.03 (0.2) | |||||
| Mass | [M☉] | ||||||
| log(Luminosity) | [L☉] | ||||||
| Cooling age | [Gyr] | ||||||
| log(H/He) | |||||||
| log(C/He) | |||||||
| log(Ca/He) | |||||||
| log(Ca/H) | |||||||
| Parallax | [mas] | 4.21 (0.4) | 1.38 (0.6) | 3.05 (0.7) | |||
| Distance | [pc] | 237.79 (25) | 726.96 (291) | 327.45 (80) | |||
| Composition | |||||||
| Proper motion (right ascension) | [mas/yr] | -70.62722914 (0.5) | -70.72301797 (0.9) | -72.16 (2) | -247.6 | ||
| Proper motion (declination) | [mas/yr] | 5.137471769 (0.2) | 6.192715653 (0.5) | 7.397 (0.6) | -188.0 | ||
| Variability | |||||||
| Magnetic | |||||||
| Bd | [MG] | ||||||
| Infrared excess (disk) | |||||||
| Binarity | WDMS | ||||||
| B magnitude | |||||||
| V magnitude | |||||||
| R magnitude | |||||||
| I magnitude | |||||||
| J magnitude | 16.35 (0.1) | ||||||
| H magnitude | 15.86 (0.2) | ||||||
| K magnitude | 15.46 (0.2) | ||||||
| u magnitude | 19.88 (0.03) | 23.39 (0.5) | 19.85 (0.04) | 19.85 | |||
| g magnitude | 19.39 (0.01) | 22.30 (0.1) | 19.39 (0.02) | 19.39 | |||
| r magnitude | 19.47 (0.01) | 19.56 (0.03) | |||||
| i magnitude | 19.79 (0.02) | 18.92 (0.01) | 19.39 (0.08) | ||||
| z magnitude | 20.61 (0.1) | 18.03 (0.02) | 19.59 (0.3) | ||||
| G magnitude | 19.40 (0.03) | 19.43 | 19.72 (0.007) | ||||
| BP magnitude | 19.30 (0.03) | 19.31 | |||||
| RP magnitude | 18.24 (0.03) | 18.16 | |||||
| Pan g magnitude | |||||||
| Pan r magnitude | |||||||
| Pan i magnitude | |||||||
| Pan z magnitude | |||||||
| Pan y magnitude |
* 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 (LANL). Please send database updates, corrections, suggestions or bug reports to patrick.dufour@umontreal.ca.