All names: 2MASS J22494878-0100474, Gaia DR2 2650199227716306304, Gaia EDR3 2650199227716306304, SDSS J224948.74-010047.2, SDSS J224948.74-010047.3, Gaia DR3 2650199227716306304, WD 2247-012.1, TIC 176144579, GALEX J224948.7-010047
| 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 | 22 49 48.76 (0.5) | 22 49 48.74 | 22 49 48.76 (0.7) | 22 49 48.74 | 22 49 48.75 (0.5) | 22 49 48.19 | |||
| Declination | -01 00 47.10 (0.4) | -01 00 47.18 | -01 00 47.11 (0.6) | -01 00 47.20 | -01 00 47.23 (0.4) | -01 00 42.12 | |||
| Spectral type | WD+M | D+M | WD M | ||||||
| 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] | 0.50 (0.5) | 0.76 (0.7) | 0.50 (0.5) | |||||
| Distance | [pc] | 2012.06 (2088) | 1320.27 (1276) | 193.00 (68) | 2012.07 (2088) | ||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | 10.30930367 (0.7) | 8.368324588 (1) | 10.309 (0.7) | |||||
| Proper motion (declination) | [mas/yr] | 7.710495073 (0.5) | 7.854396086 (1) | 7.71 (0.5) | |||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | WDMS | ||||||||
| B magnitude | |||||||||
| V magnitude | |||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | 17.03 (0.02) | ||||||||
| H magnitude | 16.48 (0.03) | ||||||||
| K magnitude | 16.21 (0.03) | ||||||||
| u magnitude | 20.30 (0.05) | 20.31 | 20.30 (0.08) | 20.30 | |||||
| g magnitude | 20.04 (0.02) | 20.05 | 20.03 (0.02) | 20.04 | |||||
| r magnitude | 19.58 (0.02) | 19.60 | 19.59 (0.02) | 19.59 | |||||
| i magnitude | 18.85 (0.01) | 18.85 | 18.85 (0.01) | 18.85 | |||||
| z magnitude | 18.34 (0.03) | 18.35 | 18.36 (0.03) | 18.35 | |||||
| G magnitude | 19.46 (0.1) | 19.45 | 19.46 (0.008) | ||||||
| BP magnitude | 19.89 (0.1) | 19.90 | |||||||
| RP magnitude | 18.44 (0.04) | 18.42 | |||||||
| Pan g magnitude | 20.06 (0.02) | ||||||||
| Pan r magnitude | 19.62 (0.01) | ||||||||
| Pan i magnitude | 18.88 (0.004) | ||||||||
| Pan z magnitude | 18.44 (0.01) | ||||||||
| Pan y magnitude | 18.23 (0.02) | ||||||||
| E(B-V) | 0.053 | ||||||||
* 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.