All names: WIRED J074758.75+222942.3, Gaia DR2 674876285759938176, SDSS J074758.76+222942.4, Gaia EDR3 674876285759938176, SDSS J074758.75+222942.3, WISE J074758.74+222942.3, [SGR2010] J0747+2229, 2MASS J07475875+2229422, SDSS J074758.76+222942.3, TIC 62944639, WD 0745+226, WISEA J074758.75+222942.2
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | Simbad | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 07 47 58.76 (0.2) | 07 47 58.76 | 07 47 58.76 (0.2) | 07 47 58.76 | 07 47 58.54 | 07 47 58.76 | |||
| Declination | 22 29 42.05 (0.1) | 22 29 42.38 | 22 29 42.06 (0.2) | 22 29 42.38 | 22 29 36.96 | 22 29 42.36 | |||
| Spectral type | DA+M3 | DA3.9+M3 | DA+M | ||||||
| Effective temperature | [K] | 6300.0 (4) | |||||||
| log(g) | [cgs] | 5.00 (0.005) | |||||||
| Mass | [M☉] | ||||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | 2.53 (0.2) | 2.55 (0.2) | ||||||
| Distance | [pc] | 395.73 (28) | 392.40 (36) | ||||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | 3.56165774 (0.2) | 3.95307629 (0.4) | ||||||
| Proper motion (declination) | [mas/yr] | -7.226110686 (0.2) | -7.376763766 (0.3) | ||||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | yes | WDMS | |||||||
| B magnitude | |||||||||
| V magnitude | |||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | 15.67 (0.05) | ||||||||
| H magnitude | 15.09 (0.07) | ||||||||
| K magnitude | 14.80 (0.09) | ||||||||
| u magnitude | 19.72 (0.04) | 19.72 (0.04) | 19.72 | 19.75 (0.04) | |||||
| g magnitude | 19.04 (0.01) | 19.04 (0.01) | 19.04 | 19.12 (0.02) | |||||
| r magnitude | 18.54 (0.009) | 18.54 (0.009) | 18.54 | 18.68 (0.02) | |||||
| i magnitude | 17.59 (0.007) | 17.59 (0.007) | 17.59 | 17.67 (0.02) | |||||
| z magnitude | 16.96 (0.01) | 16.96 (0.01) | 16.96 | 17.04 (0.02) | |||||
| G magnitude | 18.50 (0.03) | 18.50 | |||||||
| BP magnitude | 18.88 (0.03) | 18.82 | |||||||
| RP magnitude | 17.18 (0.02) | 17.21 | |||||||
| Pan g magnitude | 19.08 (0.008) | ||||||||
| Pan r magnitude | 18.71 (0.01) | ||||||||
| Pan i magnitude | 17.67 (0.007) | ||||||||
| Pan z magnitude | 17.15 (0.007) | ||||||||
| Pan y magnitude | 16.91 (0.009) | ||||||||
| E(B-V) | 0.023 | ||||||||
* 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.