All names: Gaia DR3 2089529322115136128, WISEA J195728.41+533203.4, Gaia DR2 2089529322115136128, GALEX J195728.4+533202, GALEX J195728.4+533201, WISE J195728.41+533203.4, TIC 364689006, 2MASS J19572841+5332032, UCAC4 718-068449, O11J195728+533203
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 19 57 28.00 | 19 57 28.42 (0.02) | ||
| Declination | 53 32 03.00 | 53 32 03.30 (0.02) | ||
| Spectral type | sd | |||
| 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] | 1.07 (0.03) | 1.09 (0.02) | |
| Distance | [pc] | 932.05 (23) | 920.22 (17) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 0.855 (0.05) | 0.956 (0.02) | |
| Proper motion (declination) | [mas/yr] | -0.107 (0.06) | -0.062 (0.03) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 15.31 (0.04) | |||
| V magnitude | 15.50 (0.01) | |||
| R magnitude | 15.12 (0.4) | |||
| I magnitude | ||||
| J magnitude | 14.47 (0.04) | 14.47 (0.04) | ||
| H magnitude | 14.19 (0.06) | 14.19 (0.06) | ||
| K magnitude | 15.31 (0.04) | 14.02 (0.06) | ||
| u magnitude | ||||
| g magnitude | 15.30 (0.01) | |||
| r magnitude | 15.57 (0.01) | |||
| i magnitude | ||||
| z magnitude | ||||
| G magnitude | 14.92 (0.02) | 14.95 (0.02) | ||
| BP magnitude | 14.98 (0.07) | |||
| RP magnitude | 14.66 (0.09) | |||
| Pan g magnitude | 15.29 (0.006) | |||
| Pan r magnitude | 14.59 (0.007) | |||
| Pan i magnitude | 14.59 (0.006) | |||
| Pan z magnitude | 15.27 (0.04) | |||
| Pan y magnitude | 14.86 (0.006) | |||
| E(B-V) | 0.069 | |||
* 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.