All names: [HHD2009] SDSS J1424+4432, Gaia DR3 1492916651972489856, Gaia EDR3 1492916651972489856, WD 1422+447, SDSS J142417.73+443225.0, TIC 158017997, SDSS J142417.74+443225.0, 2MASS J14241773+4432250, SDSS J142417.73+443224.9, Gaia DR2 1492916651972489856, GALEX J142417.7+443225
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|
| Right ascension | 14 24 17.74 (0.04) | 14 24 17.74 | 14 24 17.74 (0.04) | 14 24 17.74 (0.04) | 14 24 17.14 | |||
| Declination | 44 32 24.94 (0.04) | 44 32 25.02 | 44 32 24.95 (0.04) | 44 32 25.06 (0.04) | 44 32 21.84 | |||
| Spectral type | D+K | WD K | ||||||
| Effective temperature | [K] | |||||||
| log(g) | [cgs] | |||||||
| Mass | [M☉] | |||||||
| log(Luminosity) | [L☉] | |||||||
| Cooling age | [Gyr] | |||||||
| log(H/He) | ||||||||
| log(C/He) | ||||||||
| log(Ca/He) | ||||||||
| log(Ca/H) | ||||||||
| Parallax | [mas] | 0.96 (0.05) | 0.90 (0.06) | 0.96 (0.05) | ||||
| Distance | [pc] | 1036.77 (52) | 1107.62 (70) | 1036.81 (52) | ||||
| Composition | ||||||||
| Proper motion (right ascension) | [mas/yr] | -0.053866555 (0.04) | -0.117514629 (0.08) | -0.054 (0.04) | ||||
| Proper motion (declination) | [mas/yr] | -7.438891799 (0.05) | -7.388069326 (0.08) | -7.439 (0.05) | ||||
| Variability | ||||||||
| Magnetic | ||||||||
| Bd | [MG] | |||||||
| Infrared excess (disk) | ||||||||
| Binarity | yes | |||||||
| B magnitude | ||||||||
| V magnitude | ||||||||
| R magnitude | ||||||||
| I magnitude | ||||||||
| J magnitude | 15.39 (0.05) | |||||||
| H magnitude | 14.76 (0.07) | |||||||
| K magnitude | 14.68 (0.1) | |||||||
| u magnitude | 17.92 (0.01) | 17.91 (0.01) | 17.90 | |||||
| g magnitude | 17.47 (0.005) | 17.47 (0.005) | 17.46 | |||||
| r magnitude | 16.92 (0.004) | 16.93 (0.004) | 16.93 | |||||
| i magnitude | 16.61 (0.004) | 16.61 (0.005) | 16.60 | |||||
| z magnitude | 16.41 (0.008) | 16.42 (0.008) | 16.41 | |||||
| G magnitude | 16.95 (0.007) | 16.97 | 16.95 (0.003) | |||||
| BP magnitude | 17.39 (0.007) | 17.38 | ||||||
| RP magnitude | 16.32 (0.004) | 16.33 | ||||||
| Pan g magnitude | 17.44 (0.01) | |||||||
| Pan r magnitude | 16.99 (0.006) | |||||||
| Pan i magnitude | 16.67 (0.009) | |||||||
| Pan z magnitude | 16.53 (0.006) | |||||||
| Pan y magnitude | 16.41 (0.01) | |||||||
| 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.