All names: SDSS J224957.85-005446.7, TIC 176145622, WD 2247-011, Gaia DR2 2650206134023773184, SDSS J224957.86-005446.7, GALEX J224957.9-005445, SDSS J224957.87-005446.7, 2MASS J22495791-0054463, Gaia DR3 2650206134023773184, Gaia EDR3 2650206134023773184
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|
| Right ascension | 22 49 57.91 (0.5) | 22 49 57.87 | 22 49 57.91 (0.6) | 22 49 57.87 (0.5) | 22 49 57.14 | |||
| Declination | -00 54 47.17 (0.5) | -00 54 46.73 | -00 54 47.16 (0.6) | -00 54 46.71 (0.5) | -00 54 41.76 | |||
| Spectral type | DA | DA: dMe | ||||||
| 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] | 2.83 (0.6) | 2.71 (0.8) | 2.83 (0.6) | ||||
| Distance | [pc] | 353.34 (70) | 369.26 (104) | 353.34 (70) | ||||
| Composition | ||||||||
| Proper motion (right ascension) | [mas/yr] | 38.08812703 (0.8) | 37.60021642 (1) | 38.088 (0.8) | ||||
| Proper motion (declination) | [mas/yr] | -29.12610677 (0.5) | -30.51451731 (1) | -29.126 (0.5) | ||||
| Variability | ||||||||
| Magnetic | ||||||||
| Bd | [MG] | |||||||
| Infrared excess (disk) | ||||||||
| Binarity | ||||||||
| B magnitude | ||||||||
| V magnitude | ||||||||
| R magnitude | ||||||||
| I magnitude | ||||||||
| J magnitude | 16.96 (0.2) | |||||||
| H magnitude | ||||||||
| K magnitude | ||||||||
| u magnitude | 21.71 (0.1) | 21.68 (0.2) | 21.61 | |||||
| g magnitude | 20.82 (0.03) | 20.82 (0.04) | 20.81 | |||||
| r magnitude | 20.37 (0.03) | 20.37 (0.03) | 20.37 | |||||
| i magnitude | 19.39 (0.02) | 19.40 (0.02) | 19.41 | |||||
| z magnitude | 18.60 (0.03) | 18.60 (0.03) | 18.60 | |||||
| G magnitude | 20.00 (0.1) | 20.02 | 20.00 (0.008) | |||||
| BP magnitude | 20.55 (0.1) | 20.34 | ||||||
| RP magnitude | 18.86 (0.05) | 18.78 | ||||||
| Pan g magnitude | 20.74 (0.03) | |||||||
| Pan r magnitude | 20.34 (0.01) | |||||||
| Pan i magnitude | 19.41 (0.009) | |||||||
| Pan z magnitude | 18.75 (0.008) | |||||||
| Pan y magnitude | 18.47 (0.02) | |||||||
| E(B-V) | 0.052 | |||||||
* 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.