All names: USNO-B1.0 0635-00030830, MCT 0221-2642, 2EUVE J0223-26.4, HE 0221-2642, GALEX J022329.3-262919, 2MASS J02232944-2629200, Gaia DR2 5118624311204821504, EC 02212-2642, TIC 139483877, EUVE J0223-26.4, Gaia DR3 5118624311204821504, WD 0221-267, Gaia EDR3 5118624311204821504
| Parameter | Unit | Gaia EDR3 | Bergeron et al. 2021 | Gaia DR2 | Stilism | Koester et al. 2009 | Vincent et al. 2024 | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 02 23 29.45 (0.04) | 02 23 29.45 (0.05) | 02 23 29.45 | 02 23 29.44 (0.04) | 02 23 29.28 | ||||
| Declination | -26 29 20.78 (0.04) | -26 29 20.76 (0.06) | -26 29 20.78 | -26 29 20.19 (0.04) | -26 29 12.84 | ||||
| Spectral type | DA | DA | DA | DA1.6 | |||||
| Effective temperature | [K] | 33056.0 (567) | 32008.0 (44) | 34485.0 (994) | |||||
| log(g) | [cgs] | 7.78 (0.08) | 7.72 (0.01) | 7.95 (0.03) | |||||
| Mass | [M☉] | 0.546 (0.04) | 0.627 (0.02) | ||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | 0.0064 | |||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| log(C/H) | |||||||||
| log(N/H) | |||||||||
| log(O/H) | |||||||||
| log(Na/H) | |||||||||
| log(Mg/H) | |||||||||
| log(Al/H) | |||||||||
| log(Si/H) | |||||||||
| log(P/H) | |||||||||
| log(S/H) | |||||||||
| log(Sc/H) | |||||||||
| log(Ti/H) | |||||||||
| log(Cr/H) | |||||||||
| log(Mn/H) | |||||||||
| log(Fe/H) | |||||||||
| log(Ni/H) | |||||||||
| Parallax | [mas] | 5.59 (0.05) | 5.61 (0.07) | 5.59 | 5.59 (0.05) | ||||
| Distance | [pc] | 178.96 (2) | 178.00 | 178.30 (2) | 178.96 | 178.96 (2) | |||
| Composition | H | ||||||||
| Proper motion (right ascension) | [mas/yr] | 4.859927123 (0.05) | 5.098930349 (0.1) | 4.86 (0.05) | |||||
| Proper motion (declination) | [mas/yr] | -36.78151766 (0.05) | -36.65799081 (0.1) | -36.782 (0.05) | |||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | 15.63 | 16.70 | |||||||
| V magnitude | |||||||||
| R magnitude | 15.50 | ||||||||
| I magnitude | |||||||||
| J magnitude | 16.47 (0.1) | ||||||||
| H magnitude | |||||||||
| K magnitude | |||||||||
| u magnitude | |||||||||
| g magnitude | |||||||||
| r magnitude | |||||||||
| i magnitude | |||||||||
| z magnitude | |||||||||
| G magnitude | 15.84 (0.003) | 15.86 | 15.84 | 15.84 (0.003) | |||||
| BP magnitude | 15.69 (0.003) | 15.65 | |||||||
| RP magnitude | 16.14 (0.004) | 16.14 | |||||||
| 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.