All names: SDSS J094029.39+523324.8, 2MASS J09402939+5233247, LAMOST J094029.40+523324.7, SDSS J094029.37+523325.1, Gaia EDR3 1020386720888285440, TIC 357133920, Gaia DR2 1020386720888285440, UCAC4 713-049630, WISE J094029.40+523324.8, GALEX J094029.3+523325
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | Simbad | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|---|
| Right ascension | 09 40 29.40 (0.07) | 09 40 29.38 | 09 40 29.40 (0.1) | 09 40 29.40 (70) | 09 40 29.39 | |||
| Declination | 52 33 24.65 (0.07) | 52 33 24.80 | 52 33 24.66 (0.1) | 52 33 24.74 (60) | 52 33 24.78 | |||
| Spectral type | DA+M | DA+M | ||||||
| Effective temperature | [K] | 6300.0 (3) | ||||||
| log(g) | [cgs] | 5.00 (0.003) | ||||||
| Mass | [M☉] | |||||||
| log(Luminosity) | [L☉] | |||||||
| Cooling age | [Gyr] | |||||||
| log(H/He) | ||||||||
| log(C/He) | ||||||||
| log(Ca/He) | ||||||||
| log(Ca/H) | ||||||||
| Parallax | [mas] | 2.90 (0.1) | 3.25 (0.2) | |||||
| Distance | [pc] | 344.41 (12) | 307.55 (15) | |||||
| Composition | ||||||||
| Proper motion (right ascension) | [mas/yr] | 4.582487771 (0.09) | 4.854653633 (0.2) | |||||
| Proper motion (declination) | [mas/yr] | -8.371245436 (0.09) | -8.721210586 (0.2) | |||||
| Variability | ||||||||
| Magnetic | ||||||||
| Bd | [MG] | |||||||
| Infrared excess (disk) | ||||||||
| Binarity | WDMS | |||||||
| B magnitude | ||||||||
| V magnitude | ||||||||
| R magnitude | ||||||||
| I magnitude | ||||||||
| J magnitude | 14.18 (0.03) | |||||||
| H magnitude | 13.54 (0.04) | |||||||
| K magnitude | 13.33 (0.03) | |||||||
| u magnitude | 18.62 (0.02) | 18.62 (0.02) | 18.65 (0.04) | |||||
| g magnitude | 17.74 (0.005) | 17.74 (0.005) | 17.81 (0.03) | |||||
| r magnitude | 16.80 (0.004) | 16.80 (0.004) | 16.84 (0.01) | |||||
| i magnitude | 15.94 (0.004) | 15.94 (0.004) | 15.95 (0.02) | |||||
| z magnitude | 15.43 (0.005) | 15.43 (0.005) | 15.40 (0.02) | |||||
| G magnitude | 16.67 (0.009) | 16.63 | ||||||
| BP magnitude | 17.44 (0.009) | 17.43 | ||||||
| RP magnitude | 15.53 (0.003) | 15.55 | ||||||
| Pan g magnitude | 17.65 (0.004) | |||||||
| Pan r magnitude | 16.84 (0.006) | |||||||
| Pan i magnitude | 15.95 (0.002) | |||||||
| Pan z magnitude | 15.53 (0.004) | |||||||
| Pan y magnitude | 15.33 (0.006) | |||||||
| E(B-V) | 0.021 | |||||||
* 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.