All names: Gaia EDR3 671935332673671552, SDSS J074452.37+192526.0, SDSS J074452.32+192526.0, SDSS J074452.38+192526.1, SDSS J074452.37+192526.1, GALEX J074452.4+192524, Gaia DR2 671935332673671552, 2MASS J07445238+1925262, TIC 62742842, Gaia DR3 671935332673671552, WD 0741+195
| 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 44 52.37 (0.4) | 07 44 52.38 | 07 44 52.37 (0.5) | 07 44 52.38 (0.4) | 07 44 52.01 | 07 44 52.38 | |||
| Declination | 19 25 26.13 (0.3) | 19 25 26.13 | 19 25 26.13 (0.4) | 19 25 26.10 (0.3) | 19 25 24.96 | 19 25 26.09 | |||
| Spectral type | DA+dM | DA d | DA+M | ||||||
| Effective temperature | [K] | 6300.0 (1) | |||||||
| log(g) | [cgs] | 6.19 (0.2) | |||||||
| Mass | [M☉] | ||||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | 2.20 (0.4) | 2.07 (0.6) | 2.20 (0.4) | |||||
| Distance | [pc] | 454.10 (80) | 483.72 (139) | 454.09 (80) | |||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | -12.60557449 (0.4) | -15.30644751 (2) | -12.606 (0.4) | |||||
| Proper motion (declination) | [mas/yr] | 1.52026923 (0.3) | 1.666352431 (2) | 1.52 (0.3) | |||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | WDMS | ||||||||
| B magnitude | |||||||||
| V magnitude | |||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | 16.85 (0.1) | ||||||||
| H magnitude | 16.22 (0.2) | ||||||||
| K magnitude | |||||||||
| u magnitude | 20.97 (0.07) | 20.99 (0.08) | 20.97 | 20.96 (0.08) | |||||
| g magnitude | 20.31 (0.02) | 20.32 (0.02) | 20.30 | 20.31 (0.02) | |||||
| r magnitude | 19.87 (0.02) | 19.87 (0.02) | 19.85 | 19.86 (0.02) | |||||
| i magnitude | 18.93 (0.01) | 18.92 (0.01) | 18.90 | 18.92 (0.02) | |||||
| z magnitude | 18.24 (0.02) | 18.25 (0.02) | 18.23 | 18.24 (0.03) | |||||
| G magnitude | 19.46 (0.1) | 19.50 | 19.46 (0.005) | ||||||
| BP magnitude | 20.04 (0.1) | 20.25 | |||||||
| RP magnitude | 18.53 (0.03) | 18.52 | |||||||
| Pan g magnitude | 20.31 (0.02) | ||||||||
| Pan r magnitude | 19.87 (0.007) | ||||||||
| Pan i magnitude | 18.92 (0.007) | ||||||||
| Pan z magnitude | 18.39 (0.02) | ||||||||
| Pan y magnitude | 18.09 (0.006) | ||||||||
| E(B-V) | 0.029 | ||||||||
* 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.