All names: 2MASS J04252074-2815190, Gaia DR2 4892048018790150656, EC 04233-2822, USNO-B1.0 0617-00045855, Gaia EDR3 4892048018790150656, Gaia DR3 4892048018790150656, TIC 178829758, WD 0423-283, GALEX J042520.7-281519, HE 0423-2822
| Parameter | Unit | Gaia EDR3 | Gaia DR2 | Stilism | Koester et al. 2009 | Vincent et al. 2024 | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|
| Right ascension | 04 25 20.78 (0.03) | 04 25 20.77 (0.04) | 04 25 20.78 | 04 25 20.73 (0.03) | 04 25 20.83 | |||
| Declination | -28 15 18.79 (0.03) | -28 15 18.80 (0.04) | -28 15 18.79 | -28 15 19.11 (0.03) | -28 15 13.68 | |||
| Spectral type | DA | DA | DA4.6 | |||||
| Effective temperature | [K] | 10907.0 (21) | 10982.0 (76) | |||||
| log(g) | [cgs] | 8.07 (0.01) | 7.44 (0.01) | |||||
| Mass | [M☉] | 0.337 (0.005) | ||||||
| log(Luminosity) | [L☉] | |||||||
| Cooling age | [Gyr] | |||||||
| log(H/He) | ||||||||
| log(C/He) | ||||||||
| log(Ca/He) | ||||||||
| log(Ca/H) | ||||||||
| Parallax | [mas] | 8.36 (0.04) | 8.37 (0.05) | 8.36 | 8.36 (0.04) | |||
| Distance | [pc] | 119.59 (0.6) | 119.48 (0.8) | 119.59 | 119.59 (0.6) | |||
| Composition | ||||||||
| Proper motion (right ascension) | [mas/yr] | 38.60542807 (0.04) | 38.46226223 (0.08) | 38.605 (0.04) | ||||
| Proper motion (declination) | [mas/yr] | 19.91966448 (0.05) | 20.05566263 (0.1) | 19.92 (0.05) | ||||
| Variability | ||||||||
| Magnetic | ||||||||
| Bd | [MG] | |||||||
| Infrared excess (disk) | ||||||||
| Binarity | ||||||||
| B magnitude | 16.54 | 16.74 | ||||||
| V magnitude | 16.48 | |||||||
| R magnitude | 15.90 | |||||||
| I magnitude | ||||||||
| J magnitude | 16.50 (0.1) | |||||||
| H magnitude | ||||||||
| K magnitude | ||||||||
| u magnitude | ||||||||
| g magnitude | ||||||||
| r magnitude | ||||||||
| i magnitude | ||||||||
| z magnitude | ||||||||
| G magnitude | 16.52 (0.002) | 16.54 | 16.52 | 16.52 (0.003) | ||||
| BP magnitude | 16.54 (0.002) | 16.54 | ||||||
| RP magnitude | 16.48 (0.004) | 16.48 | ||||||
| Pan g magnitude | ||||||||
| Pan r magnitude | ||||||||
| Pan i magnitude | ||||||||
| Pan z magnitude | ||||||||
| Pan y magnitude | ||||||||
| E(B-V) | 0.001 | |||||||
* 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.