All names: Gaia DR3 668329557308291456, SDSS J075254.18+174153.5, Gaia EDR3 668329557308291456, SDSS J075254.17+174153.4, GALEX J075254.2+174154, Gaia DR2 668329553010138240
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | Simbad | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|---|
| Right ascension | 07 52 54.16 (0.7) | 07 52 54.17 | 07 52 54.16 (0.7) | 07 52 54.17 (0.7) | 07 52 54.18 | |||
| Declination | 17 41 53.41 (0.5) | 17 41 53.46 | 17 41 53.41 (0.4) | 17 41 53.71 (0.5) | 17 41 53.53 | |||
| Spectral type | DA+M | DA+M | ||||||
| Effective temperature | [K] | 9838.0 (77) | ||||||
| log(g) | [cgs] | 8.93 (0.08) | ||||||
| Mass | [M☉] | |||||||
| log(Luminosity) | [L☉] | |||||||
| Cooling age | [Gyr] | |||||||
| log(H/He) | ||||||||
| log(C/He) | ||||||||
| log(Ca/He) | ||||||||
| log(Ca/H) | ||||||||
| Parallax | [mas] | 1.37 (0.8) | 3.49 (0.8) | 1.37 (0.8) | ||||
| Distance | [pc] | 730.15 (452) | 286.30 (63) | 730.14 (452) | ||||
| Composition | ||||||||
| Proper motion (right ascension) | [mas/yr] | -4.359308374 (0.9) | 4.874 (1) | -4.359 (0.9) | ||||
| Proper motion (declination) | [mas/yr] | -19.23014525 (0.5) | -27.084 (0.7) | -19.23 (0.5) | ||||
| 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 | 19.56 (0.03) | 19.56 (0.03) | 19.59 (0.04) | |||||
| g magnitude | 19.51 (0.01) | 19.51 (0.01) | 19.55 (0.02) | |||||
| r magnitude | 19.69 (0.02) | 19.69 (0.02) | 19.74 (0.02) | |||||
| i magnitude | 19.39 (0.02) | 19.39 (0.02) | 19.45 (0.02) | |||||
| z magnitude | 18.95 (0.04) | 18.95 (0.04) | 18.98 (0.04) | |||||
| G magnitude | 19.71 (0.04) | 19.64 | 19.71 (0.01) | |||||
| BP magnitude | 19.68 (0.04) | 19.70 | ||||||
| RP magnitude | 18.98 (0.03) | 19.00 | ||||||
| Pan g magnitude | 19.57 (0.01) | |||||||
| Pan r magnitude | 19.76 (0.007) | |||||||
| Pan i magnitude | 19.44 (0.008) | |||||||
| Pan z magnitude | 19.07 (0.03) | |||||||
| Pan y magnitude | 18.89 (0.02) | |||||||
| E(B-V) | 0.032 | |||||||
* 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.