All names: Gaia DR2 2831693378730071040, GALEX J225916.6+184718, SDSS J225916.64+184717.4, Gaia DR3 2831693378730071040, Gaia EDR3 2831693378730071040
| Parameter | Unit | Gaia EDR3 | Stilism | Simbad | Vincent et al. 2023 |
|---|---|---|---|---|---|
| Right ascension | 22 59 16.64 (0.4) | 22 59 16.64 (0.4) | |||
| Declination | 18 47 17.28 (0.4) | 18 47 17.64 (0.4) | |||
| 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] | 1.64 (0.5) | 1.64 (0.5) | ||
| Distance | [pc] | 609.68 (194) | 609.68 (194) | ||
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | 4.72 (0.6) | 4.72 (0.6) | ||
| Proper motion (declination) | [mas/yr] | -22.454 (0.5) | -22.454 (0.5) | ||
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | |||||
| V magnitude | |||||
| R magnitude | |||||
| I magnitude | |||||
| J magnitude | |||||
| H magnitude | |||||
| K magnitude | |||||
| u magnitude | 20.82 (0.1) | ||||
| g magnitude | 20.15 (0.02) | ||||
| r magnitude | 20.13 (0.03) | ||||
| i magnitude | 20.19 (0.04) | ||||
| z magnitude | 20.13 (0.2) | ||||
| G magnitude | 20.04 (0.005) | 20.04 (0.005) | |||
| BP magnitude | 20.15 (0.06) | ||||
| RP magnitude | 19.88 (0.06) | ||||
| Pan g magnitude | |||||
| Pan r magnitude | |||||
| Pan i magnitude | |||||
| Pan z magnitude | |||||
| Pan y magnitude | |||||
| E(B-V) | 0.057 | ||||
* 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.