All names: SDSS J100044.64+440204.8, GALEX J100044.6+440204, Gaia EDR3 808294565726845056, SDSS J100044.70+440205.2, Gaia DR2 808294565726845056, Gaia DR3 808294565726845056
| Parameter | Unit | Gaia EDR3 | Stilism | Simbad | Vincent et al. 2023 |
|---|---|---|---|---|---|
| Right ascension | 10 00 44.63 (0.3) | 10 00 44.72 (0.3) | |||
| Declination | 44 02 04.78 (0.2) | 44 02 05.35 (0.2) | |||
| Spectral type | DA | DA | |||
| Effective temperature | [K] | ||||
| log(g) | [cgs] | ||||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 4.60 (0.4) | 4.60 (0.4) | ||
| Distance | [pc] | 217.61 (17) | 217.61 (17) | ||
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | -61.81 (0.3) | -61.81 (0.3) | ||
| Proper motion (declination) | [mas/yr] | -35.314 (0.3) | -35.314 (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 | 20.01 (0.04) | ||||
| g magnitude | 19.67 (0.01) | ||||
| r magnitude | 19.65 (0.02) | ||||
| i magnitude | 19.70 (0.03) | ||||
| z magnitude | 19.67 (0.08) | ||||
| G magnitude | 19.59 (0.004) | 19.59 (0.004) | |||
| BP magnitude | 19.73 (0.05) | ||||
| RP magnitude | 19.35 (0.08) | ||||
| Pan g magnitude | |||||
| Pan r magnitude | |||||
| Pan i magnitude | |||||
| Pan z magnitude | |||||
| Pan y magnitude | |||||
| E(B-V) | 0.013 | ||||
* 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.