All names: SDSS J081738.67+365136.8, GALEX J081738.6+365136, Gaia EDR3 907643550194447360, Gaia DR3 907643550194447360, SDSS J081738.68+365136.9, SDSS J081738.68+365136.90
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR10 | Stilism | Kepler et al. 2015 | Simbad | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|
| Right ascension | 08 17 38.70 (1) | 08 17 38.68 | 08 17 38.68 (1) | |||||
| Declination | 36 51 36.63 (0.7) | 36 51 36.90 | 36 51 36.90 (0.7) | |||||
| Spectral type | DA | DA | DA | |||||
| Effective temperature | [K] | 9030.0 (160) | ||||||
| log(g) | [cgs] | 7.27 (0.3) | ||||||
| Mass | [M☉] | 0.312 (0.08) | ||||||
| log(Luminosity) | [L☉] | |||||||
| Cooling age | [Gyr] | |||||||
| log(H/He) | ||||||||
| log(C/He) | ||||||||
| log(Ca/He) | ||||||||
| log(Ca/H) | ||||||||
| Parallax | [mas] | 1.97 (1) | 1.97 (1) | |||||
| Distance | [pc] | 507.27 (262) | 507.28 (262) | |||||
| Composition | ||||||||
| Proper motion (right ascension) | [mas/yr] | 15.62961013 (1) | 15.63 (1) | |||||
| Proper motion (declination) | [mas/yr] | -17.03591295 (0.7) | -17.036 (0.7) | |||||
| Variability | ||||||||
| Magnetic | ||||||||
| Bd | [MG] | |||||||
| Infrared excess (disk) | ||||||||
| Binarity | ||||||||
| B magnitude | ||||||||
| V magnitude | ||||||||
| R magnitude | ||||||||
| I magnitude | ||||||||
| J magnitude | ||||||||
| H magnitude | ||||||||
| K magnitude | ||||||||
| u magnitude | 21.17 (0.07) | 21.19 (0.07) | 21.17 (0.07) | |||||
| g magnitude | 20.65 (0.02) | 20.68 (0.03) | 20.65 (0.02) | |||||
| r magnitude | 20.62 (0.03) | 20.63 (0.03) | 20.62 (0.03) | |||||
| i magnitude | 20.72 (0.04) | 20.74 (0.04) | 20.72 (0.04) | |||||
| z magnitude | 20.73 (0.1) | 20.69 (1) | 20.73 (0.1) | |||||
| G magnitude | 20.61 (0.1) | 20.61 (0.01) | ||||||
| BP magnitude | 20.76 (0.1) | |||||||
| RP magnitude | 20.22 (0.08) | |||||||
| Pan g magnitude | 20.64 (0.03) | |||||||
| Pan r magnitude | 20.65 (0.02) | |||||||
| Pan i magnitude | 20.74 (0.02) | |||||||
| Pan z magnitude | 20.74 (0.1) | |||||||
| Pan y magnitude | 20.24 (0.2) | |||||||
| E(B-V) | 0.034 | |||||||
* 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.