All names: PSO J022523.676+002743.120, SDSS J022523.68+002743.1, SDSS J022523.67+002743.0, WD 0222+002A, WD 0222+002.1, Gaia DR2 2501260997525137408
| Parameter | Unit | Pan-STARRS DR1 | Gaia DR2 | SDSS DR12 | Simbad | Eisenstein et al. 2006 | Eisenstein et al. 2006 | Eisenstein et al. 2006 | Eisenstein et al. 2006 | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Kleinman et al. 2013 | Kleinman et al. 2013 | Kleinman et al. 2013 | Kleinman et al. 2013 | Kleinman et al. 2004 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 02 25 23.69 (0.6) | 02 25 23.68 | 02 25 23.68 | 02 25 23.68 | 02 25 23.68 | 02 25 23.68 | 02 25 23.68 | 02 25 23.68 | 02 25 22.99 | 02 25 23.68 | 02 25 23.68 | 02 25 23.68 | 02 25 23.68 | 02 25 23.68 | 02 25 23.68 | ||
| Declination | 00 27 42.95 (0.7) | 00 27 43.00 | 00 27 43.08 | 00 27 43.08 | 00 27 43.08 | 00 27 43.08 | 00 27 43.08 | 00 27 43.08 | 00 27 42.48 | 00 27 43.09 | 00 27 43.09 | 00 27 43.09 | 00 27 43.09 | 00 27 43.09 | 00 27 43.09 | ||
| Spectral type | DA | DA | DA | DA | DA | DA | DA3.6 | DA | DA | DA | DA | DA | |||||
| Effective temperature | [K] | 13892.0 (632) | 14396.0 (633) | 12098.0 (758) | 12335.0 (1063) | 13020.0 (817) | 14458.0 (1186) | 13666.0 (641) | 12034.0 (707) | 11661.0 (1025) | 13043.0 (1087) | 13953.0 (637) | |||||
| log(g) | [cgs] | 7.92 (0.1) | 7.58 (0.1) | 8.53 (0.2) | 7.80 (0.3) | 7.46 (0.2) | 7.67 (0.2) | 8.10 (0.2) | 8.67 (0.2) | 8.20 (0.3) | 7.62 (0.2) | 7.93 (0.1) | |||||
| Mass | [M☉] | 0.664 (0.09) | |||||||||||||||
| log(Luminosity) | [L☉] | ||||||||||||||||
| Cooling age | [Gyr] | ||||||||||||||||
| log(H/He) | |||||||||||||||||
| log(C/He) | |||||||||||||||||
| log(Ca/He) | |||||||||||||||||
| log(Ca/H) | |||||||||||||||||
| Parallax | [mas] | 0.44 (0.9) | |||||||||||||||
| Distance | [pc] | 2266.01 (4448) | |||||||||||||||
| Composition | |||||||||||||||||
| Proper motion (right ascension) | [mas/yr] | 13.28113962 (1) | 3.0 | 2.1 | 2.1 | 2.1 | 2.1 | 2.1 | -1.0 | ||||||||
| Proper motion (declination) | [mas/yr] | -4.909523209 (2) | -8.0 | -7.5 | -7.5 | -7.5 | -7.5 | -7.5 | -6.0 | ||||||||
| Variability | |||||||||||||||||
| Magnetic | |||||||||||||||||
| Bd | [MG] | ||||||||||||||||
| Infrared excess (disk) | |||||||||||||||||
| Binarity | |||||||||||||||||
| B magnitude | |||||||||||||||||
| V magnitude | |||||||||||||||||
| R magnitude | |||||||||||||||||
| I magnitude | |||||||||||||||||
| J magnitude | |||||||||||||||||
| H magnitude | |||||||||||||||||
| K magnitude | |||||||||||||||||
| u magnitude | 20.44 (0.04) | 20.36 | 20.41 (0.05) | 20.41 (0.05) | 20.41 (0.05) | 20.41 (0.05) | 20.41 (0.05) | 20.41 | 20.43 (0.05) | 20.43 (0.05) | 20.43 (0.05) | 20.43 (0.05) | 20.43 (0.05) | 20.41 (0.05) | |||
| g magnitude | 20.03 (0.02) | 19.95 | 19.99 (0.03) | 19.99 (0.03) | 19.99 (0.03) | 19.99 (0.03) | 19.99 (0.03) | 19.99 | 20.01 (0.03) | 20.01 (0.03) | 20.01 (0.03) | 20.01 (0.03) | 20.01 (0.03) | 19.99 (0.03) | |||
| r magnitude | 20.12 (0.02) | 20.09 | 20.20 (0.02) | 20.20 (0.02) | 20.20 (0.02) | 20.20 (0.02) | 20.20 (0.02) | 20.20 | 20.20 (0.02) | 20.20 (0.02) | 20.20 (0.02) | 20.20 (0.02) | 20.20 (0.02) | 20.20 (0.02) | |||
| i magnitude | 20.30 (0.03) | 20.25 | 20.36 (0.04) | 20.36 (0.04) | 20.36 (0.04) | 20.36 (0.04) | 20.36 (0.04) | 20.36 | 20.36 (0.04) | 20.36 (0.04) | 20.36 (0.04) | 20.36 (0.04) | 20.36 (0.04) | 20.36 (0.04) | |||
| z magnitude | 20.59 (0.1) | 20.21 | 20.25 (0.1) | 20.25 (0.1) | 20.25 (0.1) | 20.25 (0.1) | 20.25 (0.1) | 20.25 | 20.25 (0.1) | 20.25 (0.1) | 20.25 (0.1) | 20.25 (0.1) | 20.25 (0.1) | 20.25 (0.1) | |||
| G magnitude | 20.19 | ||||||||||||||||
| BP magnitude | 20.24 | ||||||||||||||||
| RP magnitude | 20.22 | ||||||||||||||||
| Pan g magnitude | 20.03 (0.03) | ||||||||||||||||
| Pan r magnitude | 20.20 (0.02) | ||||||||||||||||
| Pan i magnitude | 20.34 (0.02) | ||||||||||||||||
| Pan z magnitude | 20.50 (0.05) | ||||||||||||||||
| Pan y magnitude | 20.40 (0.2) |
* Constant surface field
Spectra without link are available upon request
The Montreal White Dwarf Database is produced and maintained by Prof. Patrick Dufour at Université de Montréal. Please send database updates, corrections, suggestions or bug reports to dufourpa@astro.umontreal.ca.