All names: EC 04525-3444, Gaia EDR3 4873054711334208256, TIC 1354950, HE0452-3444, Gaia DR2 4873054711334208256, WD 0452-347, Gaia DR3 4873054711334208256, HE 0452-3444, USNO-B1.0 0553-00044319, SCR J0454-3439, UCAC4 277-005583, 2MASS J04542370-3439481, GALEX J045423.8-343948
| Parameter | Unit | Gaia EDR3 | Gaia DR2 | Stilism | Koester et al. 2014 | Koester et al. 2009 | Vincent et al. 2024 | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 04 54 23.93 (0.03) | 04 54 23.92 (0.04) | 04 54 23.93 | 04 54 23.71 (0.03) | 04 54 23.40 | ||||
| Declination | -34 39 50.55 (0.03) | -34 39 50.48 (0.04) | -34 39 50.55 | -34 39 48.35 (0.03) | -34 39 43.20 | ||||
| Spectral type | DA | DA | DA2.5 | ||||||
| Effective temperature | [K] | 21810.0 (296) | 21206.0 (40) | 21264.0 (291) | |||||
| log(g) | [cgs] | 7.89 (0.09) | 7.84 (0.007) | 7.88 (0.01) | |||||
| Mass | [M☉] | 0.567 (0.05) | 0.56 (0.009) | ||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | 7.89 (0.03) | 7.86 (0.05) | 7.89 | 7.89 (0.03) | ||||
| Distance | [pc] | 126.78 (0.5) | 127.29 (0.8) | 126.78 | 126.78 (0.5) | ||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | 172.2892799 (0.03) | 172.130544 (0.08) | 172.289 (0.03) | |||||
| Proper motion (declination) | [mas/yr] | -137.6921505 (0.04) | -137.5575517 (0.1) | -137.692 (0.04) | |||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | 15.86 | 15.91 | |||||||
| V magnitude | 16.13 (0.05) | 16.04 | |||||||
| R magnitude | 15.79 (0.2) | ||||||||
| I magnitude | 16.34 | ||||||||
| J magnitude | 16.56 (0.1) | ||||||||
| H magnitude | |||||||||
| K magnitude | |||||||||
| u magnitude | |||||||||
| g magnitude | |||||||||
| r magnitude | |||||||||
| i magnitude | |||||||||
| z magnitude | |||||||||
| G magnitude | 16.00 (0.002) | 16.02 | 16.00 | 16.00 (0.003) | |||||
| BP magnitude | 15.92 (0.002) | 15.89 | |||||||
| RP magnitude | 16.20 (0.003) | 16.21 | |||||||
| 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.