All names: Gaia DR2 1729438366364077312, 2SLAQ J210054.22+003449.6, Gaia EDR3 1729438366364077312, SDSS J210054.22+003449.6, Gaia DR3 1729438366364077312
| Parameter | Unit | Gaia EDR3 | Stilism | Simbad | Vincent et al. 2023 |
|---|---|---|---|---|---|
| Right ascension | 21 00 54.24 (0.6) | 21 00 54.22 (0.6) | |||
| Declination | 00 34 49.51 (0.3) | 00 34 49.68 (0.3) | |||
| Spectral type | D | 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] | 5.17 (0.6) | 5.17 (0.6) | ||
| Distance | [pc] | 193.41 (22) | 193.41 (22) | ||
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | 25.239 (0.7) | 25.239 (0.7) | ||
| Proper motion (declination) | [mas/yr] | -10.137 (0.4) | -10.137 (0.4) | ||
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | |||||
| V magnitude | |||||
| R magnitude | |||||
| I magnitude | |||||
| J magnitude | |||||
| H magnitude | |||||
| K magnitude | |||||
| u magnitude | 20.86 (0.07) | ||||
| g magnitude | 20.29 (0.02) | ||||
| r magnitude | 20.08 (0.02) | ||||
| i magnitude | 19.98 (0.03) | ||||
| z magnitude | 19.91 (0.1) | ||||
| G magnitude | 20.02 (0.005) | 20.02 (0.006) | |||
| BP magnitude | 20.22 (0.06) | ||||
| RP magnitude | 19.71 (0.08) | ||||
| Pan g magnitude | |||||
| Pan r magnitude | |||||
| Pan i magnitude | |||||
| Pan z magnitude | |||||
| Pan y magnitude | |||||
| E(B-V) | 0.025 | ||||
* 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.