All names: SDSS J020442.44+165455.6, SDSS J020442.45+165455.66, Gaia EDR3 80310837554354816, Gaia DR3 80310837554354816, GALEX J020442.4+165455, SDSS J020442.45+165455.6
| Parameter | Unit | Gaia EDR3 | SDSS DR10 | Kepler et al. 2015 | Vincent et al. 2024 | Simbad |
|---|---|---|---|---|---|---|
| Right ascension | 02 04 46.05 (0.2) | 02 04 42.45 | 02 04 46.05 | 02 04 42.45 | ||
| Declination | 16 54 52.84 (0.1) | 16 54 55.65 | 16 54 52.84 | 16 54 55.65 | ||
| Spectral type | DA | DA: | DA | |||
| Effective temperature | [K] | 10616.0 (403) | 6814.0 (194) | |||
| log(g) | [cgs] | 8.40 (0.3) | 7.96 (0.06) | |||
| Mass | [M☉] | 0.8420000000000001 (0.2) | 0.569 (0.05) | |||
| log(Luminosity) | [L☉] | |||||
| Cooling age | [Gyr] | |||||
| log(H/He) | ||||||
| log(C/He) | ||||||
| log(Ca/He) | ||||||
| log(Ca/H) | ||||||
| Parallax | [mas] | 9.20 (0.2) | 9.20 | |||
| Distance | [pc] | 108.64 (2) | 108.64 | |||
| Composition | ||||||
| Proper motion (right ascension) | [mas/yr] | 12.883 (0.2) | ||||
| Proper motion (declination) | [mas/yr] | -87.405 (0.2) | ||||
| Variability | ||||||
| Magnetic | ||||||
| Bd | [MG] | |||||
| Infrared excess (disk) | ||||||
| Binarity | ||||||
| B magnitude | ||||||
| V magnitude | ||||||
| R magnitude | ||||||
| I magnitude | ||||||
| J magnitude | ||||||
| H magnitude | ||||||
| K magnitude | ||||||
| u magnitude | 21.71 (0.2) | 21.70 (0.2) | 21.70 (0.2) | |||
| g magnitude | 21.23 (0.04) | 21.25 (0.04) | 21.23 (0.04) | |||
| r magnitude | 21.28 (0.06) | 21.27 (0.06) | 21.28 (0.06) | |||
| i magnitude | 21.30 (0.1) | 21.32 (0.1) | 21.30 (0.1) | |||
| z magnitude | 20.66 (0.2) | 20.70 (0.2) | 20.70 (0.2) | |||
| G magnitude | 18.68 (0.004) | 18.68 | ||||
| BP magnitude | 18.95 (0.02) | |||||
| RP magnitude | 18.30 (0.05) | |||||
| Pan g magnitude | ||||||
| Pan r magnitude | ||||||
| Pan i magnitude | ||||||
| Pan z magnitude | ||||||
| Pan y magnitude | ||||||
| E(B-V) | ||||||
* 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.