All names: 2MASS J04232812-0038015, TIC 248612545, WD 0420-007, GALEX J042328.1-003803, Gaia DR2 3254497415411415424, Gaia EDR3 3254497415411415424, SDSS J042328.12-003801.5, Gaia DR3 3254497415411415424
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Gaia DR2 | Stilism | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|
| Right ascension | 04 23 28.13 (0.2) | 04 23 28.13 (0.2) | 04 23 28.13 (0.2) | 04 23 28.01 | |||
| Declination | -00 38 01.63 (0.1) | -00 38 01.63 (0.1) | -00 38 01.56 (0.1) | -00 37 59.16 | |||
| Spectral type | DA+dM3 | DA6.3+dM | |||||
| 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] | 1.66 (0.2) | 1.56 (0.3) | 1.66 (0.2) | |||
| Distance | [pc] | 601.57 (67) | 643.06 (108) | 601.58 (67) | |||
| Composition | |||||||
| Proper motion (right ascension) | [mas/yr] | 1.695714152 (0.2) | 1.340147946 (0.6) | 1.696 (0.2) | |||
| Proper motion (declination) | [mas/yr] | -4.393378206 (0.2) | -4.312802342 (0.3) | -4.393 (0.2) | |||
| Variability | |||||||
| Magnetic | |||||||
| Bd | [MG] | ||||||
| Infrared excess (disk) | |||||||
| Binarity | |||||||
| B magnitude | |||||||
| V magnitude | |||||||
| R magnitude | |||||||
| I magnitude | |||||||
| J magnitude | 16.00 (0.07) | ||||||
| H magnitude | 15.31 (0.09) | ||||||
| K magnitude | 15.20 (0.2) | ||||||
| u magnitude | 19.61 | ||||||
| g magnitude | 19.56 | ||||||
| r magnitude | 19.23 | ||||||
| i magnitude | 18.28 | ||||||
| z magnitude | 17.62 | ||||||
| G magnitude | 18.68 (0.04) | 18.70 | 18.68 (0.004) | ||||
| BP magnitude | 19.46 (0.04) | 19.30 | |||||
| RP magnitude | 17.78 (0.02) | 17.77 | |||||
| Pan g magnitude | 19.40 (0.02) | ||||||
| Pan r magnitude | 19.09 (0.01) | ||||||
| Pan i magnitude | 18.22 (0.007) | ||||||
| Pan z magnitude | 17.63 (0.007) | ||||||
| Pan y magnitude | 17.38 (0.008) | ||||||
| E(B-V) | 0.049 | ||||||
* 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.