All names: GALEX J094022.2+662030, Gaia EDR3 1068110816933271040, Gaia DR2 1068110816933271040, 2MASS J09402224+6620304, SDSS J094022.26+662030.6, TIC 159505112, Gaia DR3 1068110816933271040
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | Simbad | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|---|
| Right ascension | 09 40 22.26 (0.3) | 09 40 22.24 | 09 40 22.26 (0.4) | 09 40 22.24 (0.3) | 09 40 22.26 | |||
| Declination | 66 20 30.58 (0.4) | 66 20 30.56 | 66 20 30.58 (0.7) | 66 20 30.59 (0.4) | 66 20 30.56 | |||
| Spectral type | DA+M | DA+M | ||||||
| Effective temperature | [K] | 6300.0 (3) | ||||||
| log(g) | [cgs] | 5.00 (0.01) | ||||||
| Mass | [M☉] | |||||||
| log(Luminosity) | [L☉] | |||||||
| Cooling age | [Gyr] | |||||||
| log(H/He) | ||||||||
| log(C/He) | ||||||||
| log(Ca/He) | ||||||||
| log(Ca/H) | ||||||||
| Parallax | [mas] | 1.98 (0.5) | 2.61 (0.8) | 1.98 (0.5) | ||||
| Distance | [pc] | 503.92 (123) | 382.63 (117) | 503.91 (123) | ||||
| Composition | ||||||||
| Proper motion (right ascension) | [mas/yr] | 5.293807686 (0.4) | 7.702225793 (0.8) | 5.294 (0.4) | ||||
| Proper motion (declination) | [mas/yr] | -0.466091691 (0.4) | -1.052698837 (1) | -0.466 (0.4) | ||||
| Variability | ||||||||
| Magnetic | ||||||||
| Bd | [MG] | |||||||
| Infrared excess (disk) | ||||||||
| Binarity | WDMS | |||||||
| B magnitude | ||||||||
| V magnitude | ||||||||
| R magnitude | ||||||||
| I magnitude | ||||||||
| J magnitude | 15.19 (0.05) | |||||||
| H magnitude | 14.59 (0.06) | |||||||
| K magnitude | 14.31 (0.07) | |||||||
| u magnitude | 18.65 (0.02) | 18.67 (0.03) | ||||||
| g magnitude | 18.22 (0.007) | 18.24 (0.02) | 18.24 (0.02) | |||||
| r magnitude | 17.40 (0.005) | 17.41 (0.02) | 17.41 (0.02) | |||||
| i magnitude | 16.83 (0.005) | 16.83 (0.02) | 16.83 (0.02) | |||||
| z magnitude | 16.44 (0.008) | 16.46 (0.02) | 16.46 (0.02) | |||||
| G magnitude | 17.49 (0.008) | 17.39 | 17.49 (0.005) | |||||
| BP magnitude | 17.94 (0.008) | 17.92 | ||||||
| RP magnitude | 16.44 (0.003) | 16.46 | ||||||
| Pan g magnitude | 18.14 (0.01) | |||||||
| Pan r magnitude | 17.39 (0.005) | |||||||
| Pan i magnitude | 16.84 (0.002) | |||||||
| Pan z magnitude | 16.55 (0.003) | |||||||
| Pan y magnitude | 16.37 (0.009) | |||||||
| 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.