All names: Gaia DR2 5131327656235273088, 2MASS J02274139-1859243, HE 0225-1912, PHL 1295, Gaia DR3 5131327656235273088, GALEX J022741.3-185925, EC 02253-1912, TIC 63975017, WD 0225-192, Gaia EDR3 5131327656235273088, USNO-B1.0 0710-00025361
| Parameter | Unit | Gaia EDR3 | Gaia DR2 | Stilism | Koester et al. 2009 | Vincent et al. 2024 | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|
| Right ascension | 02 27 41.36 (0.03) | 02 27 41.36 (0.05) | 02 27 41.36 | 02 27 41.43 (0.03) | 02 27 40.94 | |||
| Declination | -18 59 25.66 (0.03) | -18 59 25.63 (0.05) | -18 59 25.66 | -18 59 24.68 (0.03) | -18 59 17.52 | |||
| Spectral type | DA | DA | DA2.9 | |||||
| Effective temperature | [K] | 17269.0 (37) | 16153.0 (162) | |||||
| log(g) | [cgs] | 7.56 (0.008) | 7.20 (0.01) | |||||
| Mass | [M☉] | 0.292 (0.004) | ||||||
| log(Luminosity) | [L☉] | |||||||
| Cooling age | [Gyr] | |||||||
| log(H/He) | ||||||||
| log(C/He) | ||||||||
| log(Ca/He) | ||||||||
| log(Ca/H) | ||||||||
| Parallax | [mas] | 6.45 (0.04) | 6.41 (0.07) | 6.45 | 6.45 (0.04) | |||
| Distance | [pc] | 155.02 (0.9) | 156.11 (2) | 155.02 | 155.02 (0.9) | |||
| Composition | ||||||||
| Proper motion (right ascension) | [mas/yr] | -56.34668423 (0.04) | -56.38809769 (0.1) | -56.347 (0.04) | ||||
| Proper motion (declination) | [mas/yr] | -61.39828962 (0.04) | -61.44205597 (0.1) | -61.398 (0.04) | ||||
| Variability | ||||||||
| Magnetic | ||||||||
| Bd | [MG] | |||||||
| Infrared excess (disk) | ||||||||
| Binarity | yes | |||||||
| B magnitude | 16.14 | 16.20 | ||||||
| V magnitude | 16.20 | |||||||
| R magnitude | 15.80 | |||||||
| I magnitude | ||||||||
| J magnitude | 16.04 (0.1) | |||||||
| H magnitude | 16.26 (0.2) | |||||||
| K magnitude | ||||||||
| u magnitude | ||||||||
| g magnitude | ||||||||
| r magnitude | ||||||||
| i magnitude | ||||||||
| z magnitude | ||||||||
| G magnitude | 15.98 (0.002) | 16.01 | 15.98 | 15.98 (0.003) | ||||
| BP magnitude | 15.95 (0.002) | 15.93 | ||||||
| RP magnitude | 16.07 (0.003) | 16.06 | ||||||
| Pan g magnitude | ||||||||
| Pan r magnitude | ||||||||
| Pan i magnitude | ||||||||
| Pan z magnitude | ||||||||
| Pan y magnitude | ||||||||
| E(B-V) | 0.004 | |||||||
* 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.