All names: Gaia EDR3 5184893040946516352, Gaia DR2 5184893040946516352, GALEX J024232.6-050954, SDSS J024232.63-050954.75, Gaia DR3 5184893040946516352, SDSS J024232.63-050954.7, SDSS J024232.62-050954.7
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Genest-Beaulieu & Bergeron 2019 (spectroscopic) | Genest-Beaulieu & Bergeron 2019 (photometric) | Gaia DR2 | Stilism | Kepler et al. 2016 | Koester & Kepler 2015 | Simbad | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 02 42 32.63 (0.2) | 02 42 32.62 | 02 42 32.63 (0.3) | 02 42 32.62 (0.2) | ||||||||
| Declination | -05 09 54.71 (0.2) | -05 09 54.77 | -05 09 54.71 (0.3) | -05 09 54.74 (0.2) | ||||||||
| Spectral type | DB | DB | DB | |||||||||
| Effective temperature | [K] | 14438.0 | 12181.0 | 47261.0 (134) | 14657.0 (63) | |||||||
| log(g) | [cgs] | 7.94 | 7.63 | 7.78 (0.06) | 8.00 (0) | |||||||
| Mass | [M☉] | 0.557 | 0.398 | 0.5429999999999999 (0.02) | ||||||||
| log(Luminosity) | [L☉] | |||||||||||
| Cooling age | [Gyr] | |||||||||||
| log(H/He) | -5.871 | -5.02 (0.3) | ||||||||||
| log(C/He) | ||||||||||||
| log(Ca/He) | <-7.99 | |||||||||||
| log(Ca/H) | ||||||||||||
| Parallax | [mas] | 3.47 (0.3) | 3.45 (0.3) | 3.47 (0.3) | ||||||||
| Distance | [pc] | 288.38 (22) | 290.05 (29) | 275.00 | 288.38 (22) | |||||||
| Composition | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | 12.24763422 (0.2) | 12.23875161 (0.5) | 12.248 (0.2) | ||||||||
| Proper motion (declination) | [mas/yr] | 2.002892728 (0.2) | 1.905689615 (0.5) | 2.003 (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 | 18.58 (0.02) | 18.60 (0.03) | 18.58 (0.02) | |||||||||
| g magnitude | 18.57 (0.008) | 18.61 (0.03) | 18.57 (0.008) | |||||||||
| r magnitude | 18.78 (0.01) | 18.80 (0.02) | 18.77 (0.01) | |||||||||
| i magnitude | 18.86 (0.01) | 18.88 (0.03) | 18.85 (0.01) | |||||||||
| z magnitude | 19.12 (0.05) | 19.10 (0.05) | 19.10 (0.05) | |||||||||
| G magnitude | 18.65 (0.02) | 18.70 | 18.65 (0.004) | |||||||||
| BP magnitude | 18.66 (0.02) | 18.60 | ||||||||||
| RP magnitude | 18.63 (0.06) | 18.71 | ||||||||||
| Pan g magnitude | 18.61 (0.005) | |||||||||||
| Pan r magnitude | 18.79 (0.01) | |||||||||||
| Pan i magnitude | 19.00 (0.01) | |||||||||||
| Pan z magnitude | 19.16 (0.01) | |||||||||||
| Pan y magnitude | 19.27 (0.03) | |||||||||||
| E(B-V) | 0.022 | |||||||||||
* 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.