All names: SDSS J143826.44+013417.3, 2QZ J143826.4+013417, GALEX J143826.5+013418, Gaia DR3 3655109459154291712, Gaia EDR3 3655109459154291712, Gaia DR2 3655109459154291712, SDSS J143826.45+013417.33, SDSS J143826.45+013417.3, USNO-A2.0 0900-07744904
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | SDSS DR10 | Gaia DR2 | Stilism | sdss-wdms.org (29/04/2016) | Kepler et al. 2015 | Simbad | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 14 38 26.44 (0.5) | 14 38 26.45 | 14 38 26.45 | 14 38 26.44 (0.7) | 14 38 26.45 | 14 38 26.45 (0.5) | |||||
| Declination | 01 34 17.30 (0.4) | 01 34 17.33 | 01 34 17.33 | 01 34 17.30 (0.4) | 01 34 17.33 | 01 34 17.31 (0.4) | |||||
| Spectral type | WD+MS | DA | DA+dM | DA+MS | |||||||
| Effective temperature | [K] | 10793.0 (172) | 10426.0 (74) | ||||||||
| log(g) | [cgs] | 7.39 (0.2) | 7.29 (0.09) | ||||||||
| Mass | [M☉] | 0.32 (0.08) | 0.326 (0.03) | ||||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | ||||||||||
| log(H/He) | |||||||||||
| log(C/He) | |||||||||||
| log(Ca/He) | |||||||||||
| log(Ca/H) | |||||||||||
| Parallax | [mas] | 3.05 (0.4) | 3.09 (0.5) | 3.05 (0.4) | |||||||
| Distance | [pc] | 328.20 (46) | 323.12 (48) | 569.00 (81) | 328.20 (46) | ||||||
| Composition | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -10.79919463 (0.6) | -9.025171376 (1) | -10.799 (0.6) | |||||||
| Proper motion (declination) | [mas/yr] | -1.049728988 (0.5) | -2.505636816 (0.8) | -1.05 (0.5) | |||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | WDMS | WDMS | |||||||||
| B magnitude | 19.20 (0.3) | ||||||||||
| V magnitude | |||||||||||
| R magnitude | 19.10 (0.3) | ||||||||||
| I magnitude | |||||||||||
| J magnitude | |||||||||||
| H magnitude | |||||||||||
| K magnitude | |||||||||||
| u magnitude | 20.13 (0.05) | 20.13 (0.05) | 20.14 | 20.14 (0.05) | 20.13 (0.05) | ||||||
| g magnitude | 19.55 (0.01) | 19.55 (0.01) | 19.55 | 19.55 (0.02) | 19.55 (0.01) | ||||||
| r magnitude | 19.64 (0.02) | 19.64 (0.02) | 19.65 | 19.65 (0.02) | 19.64 (0.02) | ||||||
| i magnitude | 19.46 (0.02) | 19.46 (0.02) | 19.48 | 19.48 (0.03) | 19.46 (0.02) | ||||||
| z magnitude | 18.88 (0.05) | 18.88 (0.05) | 18.89 | 18.89 (0.05) | 18.88 (0.05) | ||||||
| G magnitude | 19.55 (0.05) | 19.54 | 19.55 (0.009) | ||||||||
| BP magnitude | 19.58 (0.05) | 19.78 | |||||||||
| RP magnitude | 19.06 (0.06) | 19.02 | |||||||||
| Pan g magnitude | 19.56 (0.01) | ||||||||||
| Pan r magnitude | 19.66 (0.01) | ||||||||||
| Pan i magnitude | 19.48 (0.02) | ||||||||||
| Pan z magnitude | 19.06 (0.01) | ||||||||||
| Pan y magnitude | 18.70 (0.02) | ||||||||||
| E(B-V) | 0.035 | ||||||||||
* 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.