All names: GALEX J000427.2-034835, SDSS J000427.13-034834.76, SDSS J000427.13-034834.7, Gaia EDR3 2447883075252300672, Gaia DR3 2447883075252300672, Gaia DR2 2447883075252300672
| Parameter | Unit | Gaia EDR3 | SDSS DR12 | Gaia DR2 | Stilism | Kepler et al. 2016 | Simbad | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|
| Right ascension | 00 04 27.15 (0.9) | 00 04 27.13 | 00 04 27.15 (1) | 00 04 27.12 (0.9) | ||||
| Declination | -03 48 34.79 (0.7) | -03 48 34.74 | -03 48 34.78 (0.8) | -03 48 34.75 (0.7) | ||||
| Spectral type | DA | DA | DA+MS | |||||
| Effective temperature | [K] | 8295.0 (123) | ||||||
| log(g) | [cgs] | 7.82 (0.2) | ||||||
| Mass | [M☉] | 0.424 (0.08) | ||||||
| log(Luminosity) | [L☉] | |||||||
| Cooling age | [Gyr] | |||||||
| log(H/He) | ||||||||
| log(C/He) | ||||||||
| log(Ca/He) | ||||||||
| log(Ca/H) | ||||||||
| Parallax | [mas] | 2.39 (1) | 0.84 (1) | 2.39 (1) | ||||
| Distance | [pc] | 418.34 (209) | 1195.09 (2127) | 418.34 (209) | ||||
| Composition | ||||||||
| Proper motion (right ascension) | [mas/yr] | 25.68109589 (1) | 27.6131385 (2) | 25.681 (1) | ||||
| Proper motion (declination) | [mas/yr] | -2.321126654 (0.8) | 1.834071568 (2) | -2.321 (0.8) | ||||
| Variability | ||||||||
| Magnetic | ||||||||
| Bd | [MG] | |||||||
| Infrared excess (disk) | ||||||||
| Binarity | WDMS | |||||||
| B magnitude | ||||||||
| V magnitude | ||||||||
| R magnitude | ||||||||
| I magnitude | ||||||||
| J magnitude | ||||||||
| H magnitude | ||||||||
| K magnitude | ||||||||
| u magnitude | 21.24 (0.09) | 21.21 (0.09) | 21.21 (0.09) | |||||
| g magnitude | 20.67 (0.03) | 20.66 (0.04) | 20.66 (0.04) | |||||
| r magnitude | 20.55 (0.03) | 20.53 (0.04) | 20.53 (0.04) | |||||
| i magnitude | 20.54 (0.04) | 20.50 (0.1) | 20.50 (0.1) | |||||
| z magnitude | 20.88 (0.2) | 20.86 (0.2) | 20.86 (0.2) | |||||
| G magnitude | 20.42 (0.2) | 20.47 | 20.42 (0.009) | |||||
| BP magnitude | 20.52 (0.2) | 20.28 | ||||||
| RP magnitude | 19.85 (0.1) | 19.84 | ||||||
| Pan g magnitude | ||||||||
| Pan r magnitude | ||||||||
| Pan i magnitude | ||||||||
| Pan z magnitude | ||||||||
| Pan y magnitude | ||||||||
| E(B-V) | 0.021 | |||||||
* 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.