All names: SDSS J141804.88+163718.34, Gaia DR2 1232592495114661120, Gaia EDR3 1232592495114661120, Gaia DR3 1232592495114661120, GALEX J141804.8+163718, SDSS J141804.88+163718.3
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR10 | Gaia DR2 | Stilism | Kepler et al. 2015 | Simbad | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 14 18 04.88 (0.6) | 14 18 04.88 | 14 18 04.88 (0.9) | 14 18 04.89 (0.6) | |||||
| Declination | 16 37 18.34 (0.4) | 16 37 18.34 | 16 37 18.33 (0.7) | 16 37 18.26 (0.4) | |||||
| Spectral type | DA | DA | DA+MS | ||||||
| Effective temperature | [K] | 9642.0 (107) | |||||||
| log(g) | [cgs] | 7.73 (0.1) | |||||||
| Mass | [M☉] | 0.48 (0.06) | |||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | 2.22 (0.6) | 1.11 (0.9) | 2.22 (0.6) | |||||
| Distance | [pc] | 451.34 (124) | 897.21 (747) | 451.35 (124) | |||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | -8.329941097 (0.8) | -10.43265685 (2) | -8.33 (0.8) | |||||
| Proper motion (declination) | [mas/yr] | 4.622945035 (0.6) | 5.529276461 (2) | 4.623 (0.6) | |||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | WDMS | ||||||||
| B magnitude | |||||||||
| V magnitude | |||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | |||||||||
| H magnitude | |||||||||
| K magnitude | |||||||||
| u magnitude | 21.09 (0.09) | 21.07 (0.09) | 21.09 (0.09) | ||||||
| g magnitude | 20.63 (0.03) | 20.61 (0.04) | 20.63 (0.03) | ||||||
| r magnitude | 20.74 (0.04) | 20.72 (0.06) | 20.74 (0.04) | ||||||
| i magnitude | 20.41 (0.04) | 20.40 (0.1) | 20.41 (0.04) | ||||||
| z magnitude | 20.32 (0.2) | 20.28 (0.3) | 20.32 (0.1) | ||||||
| G magnitude | 20.34 (0.1) | 20.38 | 20.34 (0.007) | ||||||
| BP magnitude | 20.59 (0.1) | 20.52 | |||||||
| RP magnitude | 20.13 (0.08) | 20.00 | |||||||
| Pan g magnitude | 20.49 (0.02) | ||||||||
| Pan r magnitude | 20.52 (0.03) | ||||||||
| Pan i magnitude | 20.31 (0.02) | ||||||||
| Pan z magnitude | 19.90 (0.02) | ||||||||
| Pan y magnitude | 19.49 (0.09) | ||||||||
| E(B-V) | 0.023 | ||||||||
* 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.