All names: Gaia EDR3 1248622416868673664, Gaia DR3 1248622416868673664, SDSS J134642.72+204002.9, SDSS J134642.71+204002.9, GALEX J134642.7+204004, SDSS J134642.72+204002.96
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR10 | Kepler et al. 2015 | Vincent et al. 2024 | Simbad |
|---|---|---|---|---|---|---|---|
| Right ascension | 13 46 41.30 (0.04) | 13 46 42.72 | 13 46 41.30 | 13 46 42.72 | |||
| Declination | 20 41 32.16 (0.03) | 20 40 02.95 | 20 41 32.16 | 20 40 02.95 | |||
| Spectral type | DA | DA | DA | ||||
| Effective temperature | [K] | 9748.0 (316) | 15889.0 (204) | ||||
| log(g) | [cgs] | 8.06 (0.4) | 8.07 (0.01) | ||||
| Mass | [M☉] | 0.633 (0.2) | 0.654 (0.01) | ||||
| log(Luminosity) | [L☉] | ||||||
| Cooling age | [Gyr] | ||||||
| log(H/He) | |||||||
| log(C/He) | |||||||
| log(Ca/He) | |||||||
| log(Ca/H) | |||||||
| Parallax | [mas] | 9.58 (0.06) | 9.58 | ||||
| Distance | [pc] | 104.35 (0.6) | 104.35 | ||||
| Composition | |||||||
| Proper motion (right ascension) | [mas/yr] | -81.632 (0.05) | |||||
| Proper motion (declination) | [mas/yr] | 32.579 (0.04) | |||||
| Variability | |||||||
| Magnetic | |||||||
| Bd | [MG] | ||||||
| Infrared excess (disk) | |||||||
| Binarity | |||||||
| B magnitude | |||||||
| V magnitude | |||||||
| R magnitude | |||||||
| I magnitude | |||||||
| J magnitude | |||||||
| H magnitude | |||||||
| K magnitude | |||||||
| u magnitude | 22.15 (0.2) | 22.08 (0.2) | 22.08 (0.2) | ||||
| g magnitude | 21.37 (0.04) | 21.36 (0.05) | 21.36 (0.04) | ||||
| r magnitude | 21.48 (0.06) | 21.48 (0.06) | 21.48 (0.06) | ||||
| i magnitude | 21.44 (0.09) | 21.44 (0.08) | 21.44 (0.09) | ||||
| z magnitude | 22.00 (0.5) | 21.99 (0.5) | 21.99 (0.5) | ||||
| G magnitude | 16.41 (0.003) | 16.41 | |||||
| BP magnitude | 16.37 (0.004) | ||||||
| RP magnitude | 16.52 (0.006) | ||||||
| Pan g magnitude | 21.43 (0.07) | ||||||
| Pan r magnitude | 21.39 (0.04) | ||||||
| Pan i magnitude | 21.48 (0.04) | ||||||
| Pan z magnitude | 21.78 (0.2) | ||||||
| Pan y magnitude | |||||||
| E(B-V) | |||||||
* 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.