All names: SDSS J201943.33-114550.6, GALEX J201943.2-114550, 2MASS J20194336-1145505, TIC 151754804, SDSSJ201943.33-114550.6, Gaia DR3 6880252804618881280, Gaia DR2 6880252804618881280
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 20 19 43.34 | 20 19 43.34 (0.06) | ||
| Declination | -11 45 50.66 | -11 45 50.55 (0.05) | ||
| Spectral type | sd | sdB | ||
| Effective temperature | [K] | |||
| log(g) | [cgs] | |||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 0.36 (0.1) | 0.35 (0.07) | |
| Distance | [pc] | 2815.32 (771) | 2842.52 (575) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -5.464 (0.2) | -5.532 (0.07) | |
| Proper motion (declination) | [mas/yr] | -7.243 (0.1) | -7.177 (0.06) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | ||||
| V magnitude | ||||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 16.67 (0.2) | 16.67 (0.2) | ||
| H magnitude | 15.88 (0.2) | 15.88 (0.2) | ||
| K magnitude | 15.45 (0.2) | 15.45 (0.2) | ||
| u magnitude | 17.09 (0.01) | 17.07 (0.01) | ||
| g magnitude | 17.03 (0.005) | 17.02 (0.005) | ||
| r magnitude | 17.09 (0.005) | 17.08 (0.005) | ||
| i magnitude | 17.14 (0.006) | 17.12 (0.006) | ||
| z magnitude | 17.09 (0.01) | 17.06 (0.01) | ||
| G magnitude | 17.02 (0.001) | 16.99 (0.003) | ||
| BP magnitude | 17.03 (0.007) | |||
| RP magnitude | 16.82 (0.005) | |||
| Pan g magnitude | 17.07 (0.005) | |||
| Pan r magnitude | 17.11 (0.003) | |||
| Pan i magnitude | 17.17 (0.004) | |||
| Pan z magnitude | 17.25 (0.01) | |||
| Pan y magnitude | 17.24 (0.009) | |||
| E(B-V) | 0.096 | |||
* 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.