All names: SDSS J163815.23+634134.6, SDSS J163815.22+634134.6, Gaia DR3 1628823500415158016, SDSS J163815.23+634134.7, GALEX J163815.2+634134, Gaia DR2 1628823500415158016, SDSS J163815.22+634134.7, Gaia EDR3 1628823500415158016
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | Simbad | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 16 38 15.20 (0.3) | 16 38 15.22 | 16 38 15.21 (0.5) | 16 38 15.25 (0.3) | 16 38 15.23 | ||||
| Declination | 63 41 35.01 (0.3) | 63 41 34.72 | 63 41 34.99 (0.5) | 63 41 34.57 (0.3) | 63 41 34.69 | ||||
| Spectral type | DA | DA | DA | ||||||
| Effective temperature | [K] | 14758.0 (678) | |||||||
| log(g) | [cgs] | 7.80 (0.09) | |||||||
| Mass | [M☉] | 0.513 (0.04) | |||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | 1.60 (0.3) | 0.63 (0.5) | 1.60 (0.3) | |||||
| Distance | [pc] | 625.92 (136) | 1592.85 (1324) | 625.94 (136) | |||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | -16.85142925 (0.4) | -17.14178799 (0.9) | -16.851 (0.4) | |||||
| Proper motion (declination) | [mas/yr] | 27.58421028 (0.4) | 28.71890606 (1) | 27.584 (0.4) | |||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | |||||||||
| V magnitude | |||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | |||||||||
| H magnitude | |||||||||
| K magnitude | |||||||||
| u magnitude | 20.08 (0.05) | 20.08 (0.05) | 20.06 (0.05) | ||||||
| g magnitude | 19.65 (0.01) | 19.65 (0.01) | 19.66 (0.02) | ||||||
| r magnitude | 19.92 (0.02) | 19.92 (0.02) | 19.91 (0.02) | ||||||
| i magnitude | 20.10 (0.03) | 20.10 (0.03) | 20.10 (0.04) | ||||||
| z magnitude | 20.26 (0.1) | 20.26 (0.1) | 20.28 (0.1) | ||||||
| G magnitude | 19.80 (0.04) | 19.84 | 19.80 (0.005) | ||||||
| BP magnitude | 19.83 (0.04) | 19.72 | |||||||
| RP magnitude | 19.81 (0.06) | 19.86 | |||||||
| Pan g magnitude | 19.65 (0.01) | ||||||||
| Pan r magnitude | 19.91 (0.02) | ||||||||
| Pan i magnitude | 20.23 (0.02) | ||||||||
| Pan z magnitude | 20.36 (0.06) | ||||||||
| Pan y magnitude | 20.30 (0.1) | ||||||||
| E(B-V) | 0.022 | ||||||||
* 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.