All names: Gaia DR3 1235705182466908416, SDSS J143732.94+172557.04, SDSS J143732.93+172556.9, Gaia EDR3 1235705182466908416, LAMOST J143732.93+172557.0, GALEX J143733.0+172557, Gaia DR2 1235705182466702336, SDSS J143732.94+172557.0
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR10 | Genest-Beaulieu & Bergeron 2019 (spectroscopic) | Genest-Beaulieu & Bergeron 2019 (photometric) | Gaia DR2 | Stilism | Koester & Kepler 2015 | Kepler et al. 2015 | Vincent et al. 2024 | Simbad | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 14 37 32.93 (0.04) | 14 37 32.94 | 14 37 32.93 (0.06) | 14 37 32.93 | 14 37 32.94 (0.04) | ||||||||
| Declination | 17 25 56.96 (0.04) | 17 25 56.99 | 17 25 56.96 (0.07) | 17 25 56.96 | 17 25 56.89 (0.04) | ||||||||
| Spectral type | DBA | DB | DBA | DB | |||||||||
| Effective temperature | [K] | 17789.0 | 17472.0 | 17667.0 (47) | 17700.0 (46) | 16162.0 (465) | |||||||
| log(g) | [cgs] | 8.18 | 8.04 | 8.03 (0.02) | 7.98 (0.02) | 7.92 (0.03) | |||||||
| Mass | [M☉] | 0.701 | 0.616 | 0.585 (0.01) | 0.546 (0.03) | ||||||||
| log(Luminosity) | [L☉] | ||||||||||||
| Cooling age | [Gyr] | ||||||||||||
| log(H/He) | -5.333 | -5.05 (0.2) | |||||||||||
| log(C/He) | |||||||||||||
| log(Ca/He) | <-6.06 | ||||||||||||
| log(Ca/H) | |||||||||||||
| Parallax | [mas] | 7.31 (0.06) | 7.31 (0.07) | 7.31 | 7.31 (0.06) | ||||||||
| Distance | [pc] | 136.74 (1) | 136.87 (1) | 138.00 | 136.74 | 136.74 (1) | |||||||
| Composition | |||||||||||||
| Proper motion (right ascension) | [mas/yr] | -17.3296086 (0.06) | -17.36615885 (0.1) | -17.33 (0.06) | |||||||||
| Proper motion (declination) | [mas/yr] | 4.040797018 (0.06) | 4.553341699 (0.2) | 4.041 (0.06) | |||||||||
| Variability | |||||||||||||
| Magnetic | |||||||||||||
| Bd | [MG] | ||||||||||||
| Infrared excess (disk) | |||||||||||||
| Binarity | |||||||||||||
| B magnitude | |||||||||||||
| V magnitude | |||||||||||||
| R magnitude | |||||||||||||
| I magnitude | |||||||||||||
| J magnitude | |||||||||||||
| H magnitude | |||||||||||||
| K magnitude | |||||||||||||
| u magnitude | 16.44 (0.007) | 16.40 (0.03) | 16.44 (0.007) | ||||||||||
| g magnitude | 16.51 (0.004) | 16.53 (0.02) | 16.51 (0.004) | ||||||||||
| r magnitude | 16.85 (0.005) | 16.83 (0.02) | 16.85 (0.005) | ||||||||||
| i magnitude | 17.10 (0.006) | 17.10 (0.01) | 17.10 (0.006) | ||||||||||
| z magnitude | 17.38 (0.01) | 17.37 (0.02) | 17.38 (0.01) | ||||||||||
| G magnitude | 16.67 (0.005) | 16.69 | 16.67 | 16.67 (0.003) | |||||||||
| BP magnitude | 16.60 (0.005) | 16.56 | |||||||||||
| RP magnitude | 16.79 (0.006) | 16.78 | |||||||||||
| Pan g magnitude | 16.55 (0.003) | ||||||||||||
| Pan r magnitude | 16.83 (0.002) | ||||||||||||
| Pan i magnitude | 17.11 (0.004) | ||||||||||||
| Pan z magnitude | 17.36 (0.006) | ||||||||||||
| Pan y magnitude | 17.51 (0.03) | ||||||||||||
| E(B-V) | 0.015 | ||||||||||||
* 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.