All names: SDSS J074725.12+651301.4, GALEX J074725.2+651300, FBS B 764, SDSS J074725.16+651301.1, Gaia DR3 1094760745409246080, TIC 335501964, 2MASS J07472516+6513014, SDSS J074725.15+651301.1, WD 0742+653, HS 0742+6520, Gaia EDR3 1094760745409246080, Gaia DR2 1094760745409246080, FBS 0742+653
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | Reindl et al. 2014 | Vincent et al. 2024 | Simbad | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 07 47 25.17 (0.03) | 07 47 25.16 | 07 47 25.17 (0.03) | 07 47 25.17 | 07 47 25.16 (0.03) | 07 47 24.84 | 07 47 25.16 | |||||
| Declination | 65 13 01.05 (0.03) | 65 13 01.13 | 65 13 01.06 (0.05) | 65 13 01.05 | 65 13 01.16 (0.03) | 65 12 54.72 | 65 13 01.13 | |||||
| Spectral type | DO | DO | DOZ.6 | DO | DO | |||||||
| Effective temperature | [K] | 80000.0 | 120271.0 (38041) | 100000.0 (397) | ||||||||
| log(g) | [cgs] | 7.50 (0.5) | 8.04 (0.4) | 7.83 (0.06) | ||||||||
| Mass | [M☉] | 0.53 | 0.771 (0.2) | |||||||||
| log(Luminosity) | [L☉] | |||||||||||
| Cooling age | [Gyr] | |||||||||||
| log(H/He) | ||||||||||||
| log(C/He) | <0.002 | |||||||||||
| log(Ca/He) | ||||||||||||
| log(Ca/H) | ||||||||||||
| Parallax | [mas] | 3.01 (0.05) | 3.18 (0.06) | 3.01 | 3.01 (0.05) | |||||||
| Distance | [pc] | 331.91 (5) | 314.21 (6) | 331.91 | 331.91 (5) | |||||||
| Composition | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | 7.017445134 (0.03) | 7.26488663 (0.06) | 7.017 (0.03) | ||||||||
| Proper motion (declination) | [mas/yr] | -6.460136166 (0.04) | -6.419363983 (0.09) | -6.46 (0.04) | ||||||||
| Variability | ||||||||||||
| Magnetic | ||||||||||||
| Bd | [MG] | |||||||||||
| Infrared excess (disk) | ||||||||||||
| Binarity | ||||||||||||
| B magnitude | 17.00 | |||||||||||
| V magnitude | ||||||||||||
| R magnitude | ||||||||||||
| I magnitude | ||||||||||||
| J magnitude | 16.75 (0.1) | |||||||||||
| H magnitude | ||||||||||||
| K magnitude | ||||||||||||
| u magnitude | 14.95 (0.004) | 14.95 (0.004) | 14.98 (0.01) | |||||||||
| g magnitude | 15.41 (0.004) | 15.41 | 15.41 (0.004) | 15.46 (0.01) | ||||||||
| r magnitude | 16.03 (0.004) | 16.03 (0.004) | 16.04 (0.01) | |||||||||
| i magnitude | 16.42 (0.005) | 16.42 (0.005) | 16.42 (0.01) | |||||||||
| z magnitude | 16.77 (0.01) | 16.77 (0.01) | 16.76 (0.02) | |||||||||
| G magnitude | 15.73 (0.002) | 15.75 | 15.73 | 15.73 (0.003) | ||||||||
| BP magnitude | 15.54 (0.002) | 15.47 | ||||||||||
| RP magnitude | 16.13 (0.004) | 16.12 | ||||||||||
| Pan g magnitude | 15.55 (0.001) | |||||||||||
| Pan r magnitude | 16.03 (0.003) | |||||||||||
| Pan i magnitude | 16.46 (0.002) | |||||||||||
| Pan z magnitude | 16.76 (0.003) | |||||||||||
| Pan y magnitude | 16.98 (0.004) | |||||||||||
| E(B-V) | 0.031 | |||||||||||
* 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.