All names: SDSS J134617.31+440129.7, SDSS J134617.31+440129.70, Gaia EDR3 1502370837063725824
| Parameter | Unit | Gaia EDR3 | SDSS DR12 | Kepler et al. 2016 | Simbad |
|---|---|---|---|---|---|
| Right ascension | 13 46 17.61 (0.3) | 13 46 17.32 | 13 46 17.31 | ||
| Declination | 44 03 09.23 (0.3) | 44 01 29.68 | 44 01 29.70 | ||
| Spectral type | DA: | DA | |||
| Effective temperature | [K] | 16248.0 (1000) | |||
| log(g) | [cgs] | 8.03 (0.5) | |||
| Mass | [M☉] | 0.63 (0.2) | |||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 2.44 (0.4) | |||
| Distance | [pc] | 409.45 (68) | |||
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | 19.894 (0.3) | |||
| Proper motion (declination) | [mas/yr] | -17.498 (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 | 22.81 (0.5) | 22.73 (0.4) | 22.73 (0.4) | ||
| g magnitude | 21.79 (0.07) | 21.82 (0.07) | 21.82 (0.07) | ||
| r magnitude | 21.66 (0.09) | 21.82 (0.1) | 21.82 (0.1) | ||
| i magnitude | 21.93 (0.2) | 22.02 (0.2) | 22.02 (0.2) | ||
| z magnitude | 22.50 (0.7) | 22.51 (0.7) | |||
| G magnitude | 20.15 (0.005) | ||||
| BP magnitude | 20.33 (0.06) | ||||
| RP magnitude | 19.89 (0.07) | ||||
| Pan g magnitude | |||||
| Pan r magnitude | |||||
| Pan i magnitude | |||||
| Pan z magnitude | |||||
| 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.