All names: SDSS J074147.05+220655.0, WIRED J074147.05+220655.0, SDSS J074147.05+220655.1, GALEX J074146.9+220657, SDSS J074147.04+220655.1, WD 0738+222, Gaia EDR3 674791589005218432, Gaia DR2 674791589005218432, Gaia DR3 674791589005218432, SDSS J074147.00+220655.0, [HHD2009] SDSS J0741+2206
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 07 41 47.05 (0.4) | 07 41 47.05 | 07 41 47.05 (0.5) | 07 41 47.05 (0.4) | 07 41 47.05 | 07 41 46.39 | 07 41 47.05 | |||
| Declination | 22 06 55.15 (0.3) | 22 06 55.09 | 22 06 55.15 (0.4) | 22 06 55.14 (0.3) | 22 06 55.12 | 22 06 49.32 | 22 06 55.09 | |||
| Spectral type | DA+M | DA+M | DA: dM | DA+M | ||||||
| Effective temperature | [K] | 6309.0 (15) | 6308.0 (13) | |||||||
| log(g) | [cgs] | 7.28 (0.4) | 6.90 (0.4) | |||||||
| Mass | [M☉] | |||||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | |||||||||
| log(H/He) | ||||||||||
| log(C/He) | ||||||||||
| log(Ca/He) | ||||||||||
| log(Ca/H) | ||||||||||
| Parallax | [mas] | 0.55 (0.5) | 0.75 (0.6) | 0.55 (0.5) | ||||||
| Distance | [pc] | 1832.34 (1628) | 1325.82 (1137) | 1832.51 (1628) | ||||||
| Composition | ||||||||||
| Proper motion (right ascension) | [mas/yr] | 0.059695602 (0.5) | -0.272049238 (1) | 0.06 (0.5) | 1.7 | |||||
| Proper motion (declination) | [mas/yr] | 0.923802841 (0.4) | 0.776488012 (1) | 0.924 (0.4) | -4.1 | |||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | WDMS | WDMS | ||||||||
| B magnitude | ||||||||||
| V magnitude | ||||||||||
| R magnitude | ||||||||||
| I magnitude | ||||||||||
| J magnitude | 17.53 (0.02) | |||||||||
| H magnitude | ||||||||||
| K magnitude | ||||||||||
| u magnitude | 20.16 (0.05) | 20.20 (0.05) | 20.21 (0.05) | 20.21 | 20.20 (0.05) | |||||
| g magnitude | 20.04 (0.02) | 20.16 (0.02) | 20.15 (0.02) | 20.15 | 20.15 (0.02) | |||||
| r magnitude | 19.97 (0.02) | 20.04 (0.03) | 20.03 (0.03) | 20.03 | 20.03 (0.03) | |||||
| i magnitude | 19.32 (0.02) | 19.35 (0.02) | 19.35 (0.02) | 19.35 | 19.35 (0.02) | |||||
| z magnitude | 18.78 (0.05) | 18.77 (0.04) | 18.77 (0.04) | 18.77 | 18.78 (0.04) | |||||
| G magnitude | 19.68 (0.07) | 19.70 | 19.68 (0.007) | |||||||
| BP magnitude | 20.21 (0.07) | 19.76 | ||||||||
| RP magnitude | 18.98 (0.05) | 18.88 | ||||||||
| Pan g magnitude | 20.16 (0.02) | |||||||||
| Pan r magnitude | 20.05 (0.009) | |||||||||
| Pan i magnitude | 19.40 (0.01) | |||||||||
| Pan z magnitude | 18.94 (0.006) | |||||||||
| Pan y magnitude | 18.72 (0.02) | |||||||||
| E(B-V) | 0.039 | |||||||||
* 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.