All names: Gaia DR2 2542249523994745088, GALEX J002251.5-002720, Gaia DR3 2542249523994745088, Gaia EDR3 2542249523994745088, TIC 269852769, SDSS J002251.64-002720.8, 2MASS J00225164-0027208, SDSS J002251.64-002720.9, WD 0020-007, [SGR2010] J0022-0027
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | sdss-wdms.org (29/04/2016) | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 00 22 51.64 (0.3) | 00 22 51.64 | 00 22 51.64 (0.3) | 00 22 51.64 | 00 22 51.63 (0.3) | 00 22 51.70 | |||
| Declination | -00 27 21.22 (0.2) | -00 27 20.90 | -00 27 21.21 (0.2) | -00 27 20.92 | -00 27 21.01 (0.2) | -00 27 16.20 | |||
| Spectral type | WD+M | D+M4.5 | WD M4. | ||||||
| Effective temperature | [K] | ||||||||
| log(g) | [cgs] | ||||||||
| Mass | [M☉] | ||||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | 2.72 (0.4) | 4.34 (0.4) | 2.72 (0.4) | |||||
| Distance | [pc] | 368.08 (48) | 230.59 (24) | 368.08 (48) | |||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | 6.121846866 (0.4) | 12.33400601 (1) | 6.122 (0.4) | |||||
| Proper motion (declination) | [mas/yr] | -12.65870982 (0.3) | -14.48343607 (0.6) | -12.659 (0.3) | |||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | WDMS | ||||||||
| B magnitude | |||||||||
| V magnitude | |||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | 15.76 (0.009) | ||||||||
| H magnitude | 15.22 (0.01) | ||||||||
| K magnitude | 14.94 (0.01) | ||||||||
| u magnitude | 21.40 (0.1) | 21.33 | 21.34 (0.2) | 21.33 | |||||
| g magnitude | 20.37 (0.02) | 20.37 | 20.36 (0.02) | 20.37 | |||||
| r magnitude | 19.53 (0.02) | 19.60 | 19.56 (0.02) | 19.59 | |||||
| i magnitude | 18.18 (0.009) | 18.24 | 18.19 (0.009) | 18.23 | |||||
| z magnitude | 17.28 (0.01) | 17.30 | 17.28 (0.01) | 17.29 | |||||
| G magnitude | 19.11 (0.06) | 19.07 | 19.11 (0.004) | ||||||
| BP magnitude | 20.18 (0.06) | 20.19 | |||||||
| RP magnitude | 17.68 (0.01) | 17.66 | |||||||
| Pan g magnitude | 20.34 (0.02) | ||||||||
| Pan r magnitude | 19.62 (0.01) | ||||||||
| Pan i magnitude | 18.22 (0.008) | ||||||||
| Pan z magnitude | 17.48 (0.01) | ||||||||
| Pan y magnitude | 17.11 (0.005) | ||||||||
| E(B-V) | 0.027 | ||||||||
* 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.