All names: SDSS J074939.30+162235.4, GALEX J074939.2+162236, Gaia DR2 667799691483692160, SDSS J074939.31+162235.47, SDSS J074939.31+162235.4, Gaia DR3 667799691483692160, Gaia EDR3 667799691483692160
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR10 | Gaia DR2 | Stilism | Kepler et al. 2015 | Simbad | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 07 49 39.32 (0.6) | 07 49 39.31 | 07 49 39.32 (0.7) | 07 49 39.30 (0.6) | |||||
| Declination | 16 22 35.31 (0.4) | 16 22 35.48 | 16 22 35.32 (0.5) | 16 22 35.66 (0.4) | |||||
| Spectral type | DA | DA | DA+MS | ||||||
| Effective temperature | [K] | 12190.0 (597) | |||||||
| log(g) | [cgs] | 7.68 (0.07) | |||||||
| Mass | [M☉] | 0.469 (0.03) | |||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | 0.21 (0.7) | 0.10 (0.9) | 0.21 (0.7) | |||||
| Distance | [pc] | 4728.37 (14882) | 10199.57 (92463) | 4728.13 (14880) | |||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | 13.90812607 (0.7) | 14.97642743 (1) | 13.908 (0.7) | |||||
| Proper motion (declination) | [mas/yr] | -22.0478339 (0.4) | -21.98539159 (0.9) | -22.048 (0.4) | |||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | WDMS | ||||||||
| B magnitude | |||||||||
| V magnitude | |||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | |||||||||
| H magnitude | |||||||||
| K magnitude | |||||||||
| u magnitude | 20.77 (0.06) | 20.77 (0.07) | 20.77 (0.06) | ||||||
| g magnitude | 20.17 (0.02) | 20.18 (0.02) | 20.17 (0.02) | ||||||
| r magnitude | 20.32 (0.03) | 20.31 (0.03) | 20.32 (0.03) | ||||||
| i magnitude | 20.28 (0.03) | 20.29 (0.03) | 20.28 (0.03) | ||||||
| z magnitude | 19.96 (0.09) | 19.88 (0.08) | 19.96 (0.09) | ||||||
| G magnitude | 20.14 (0.07) | 20.20 | 20.14 (0.007) | ||||||
| BP magnitude | 20.12 (0.07) | 20.28 | |||||||
| RP magnitude | 20.03 (0.08) | 20.06 | |||||||
| Pan g magnitude | 20.16 (0.03) | ||||||||
| Pan r magnitude | 20.27 (0.02) | ||||||||
| Pan i magnitude | 20.33 (0.02) | ||||||||
| Pan z magnitude | 20.16 (0.03) | ||||||||
| Pan y magnitude | 19.77 (0.06) | ||||||||
| 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.