All names: Gaia DR3 727088244671611008, SDSS J101755.70+254807.9, SDSS J101755.70+254807.8, GALEX J101755.7+254808, Gaia DR2 727088244671611008, Gaia EDR3 727088244671611008
| Parameter | Unit | Gaia EDR3 | SDSS DR12 | Gaia DR2 | Stilism | Simbad | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|
| Right ascension | 10 17 55.72 (0.4) | 10 17 55.70 | 10 17 55.72 (0.7) | 10 17 55.70 (0.4) | 10 17 55.70 | |||
| Declination | 25 48 07.75 (0.3) | 25 48 07.83 | 25 48 07.75 (0.4) | 25 48 07.85 (0.3) | 25 48 07.87 | |||
| Spectral type | DA | DA | DA | |||||
| Effective temperature | [K] | 18202.0 (559) | ||||||
| log(g) | [cgs] | 7.98 (0.1) | ||||||
| Mass | [M☉] | 0.608 (0.06) | ||||||
| log(Luminosity) | [L☉] | |||||||
| Cooling age | [Gyr] | |||||||
| log(H/He) | ||||||||
| log(C/He) | ||||||||
| log(Ca/He) | ||||||||
| log(Ca/H) | ||||||||
| Parallax | [mas] | 1.38 (0.5) | 0.72 (0.8) | 1.38 (0.5) | ||||
| Distance | [pc] | 726.70 (243) | 1379.74 (1449) | 726.69 (243) | ||||
| Composition | ||||||||
| Proper motion (right ascension) | [mas/yr] | 16.25911391 (0.4) | 17.02376004 (0.9) | 16.259 (0.4) | ||||
| Proper motion (declination) | [mas/yr] | -6.687908964 (0.3) | -7.549855216 (0.8) | -6.688 (0.3) | ||||
| Variability | ||||||||
| Magnetic | ||||||||
| Bd | [MG] | |||||||
| Infrared excess (disk) | ||||||||
| Binarity | ||||||||
| B magnitude | ||||||||
| V magnitude | ||||||||
| R magnitude | ||||||||
| I magnitude | ||||||||
| J magnitude | ||||||||
| H magnitude | ||||||||
| K magnitude | ||||||||
| u magnitude | 19.69 (0.03) | 19.68 (0.03) | 19.70 (0.04) | |||||
| g magnitude | 19.50 (0.01) | 19.49 (0.01) | 19.51 (0.03) | |||||
| r magnitude | 19.88 (0.02) | 19.88 (0.02) | 19.88 (0.02) | |||||
| i magnitude | 20.14 (0.03) | 20.12 (0.03) | 20.12 (0.03) | |||||
| z magnitude | 21.26 (0.3) | 21.15 (0.2) | 21.15 (0.2) | |||||
| G magnitude | 19.70 (0.03) | 19.75 | 19.70 (0.005) | |||||
| BP magnitude | 19.70 (0.03) | 19.71 | ||||||
| RP magnitude | 19.91 (0.06) | 19.75 | ||||||
| Pan g magnitude | ||||||||
| Pan r magnitude | ||||||||
| Pan i magnitude | ||||||||
| Pan z magnitude | ||||||||
| Pan y magnitude | ||||||||
| E(B-V) | 0.020 | |||||||
* 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.