All names: GALEX J205321.2+155705, 2MASS J20532122+1557041, TIC 408570021, SDSS J205321.21+155704.6, Gaia DR3 1764304189318773120, Gaia DR2 1764304189318773120, SDSSJ205321.21+155704.6
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 20 53 21.22 | 20 53 21.22 (0.06) | ||
| Declination | 15 57 04.68 | 15 57 04.64 (0.05) | ||
| Spectral type | sd | sd+F/K | ||
| 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] | 0.04 (0.1) | 0.08 (0.08) | |
| Distance | [pc] | 22779.04 (56818) | 12315.27 (12088) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -1.945 (0.2) | -2.308 (0.07) | |
| Proper motion (declination) | [mas/yr] | -1.403 (0.2) | -1.433 (0.07) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | ||||
| V magnitude | ||||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 16.63 (0.1) | 16.63 (0.1) | ||
| H magnitude | 16.25 (0.3) | 16.25 (0.3) | ||
| K magnitude | 17.08 | |||
| u magnitude | 17.72 (0.01) | 17.73 (0.02) | ||
| g magnitude | 17.35 (0.005) | 17.34 (0.007) | ||
| r magnitude | 17.33 (0.006) | 17.33 (0.007) | ||
| i magnitude | 17.37 (0.007) | 17.38 (0.02) | ||
| z magnitude | 17.39 (0.02) | 17.38 (0.02) | ||
| G magnitude | 17.30 (0.001) | 17.27 (0.003) | ||
| BP magnitude | 17.39 (0.008) | |||
| RP magnitude | 17.05 (0.005) | |||
| Pan g magnitude | 17.37 (0.005) | |||
| Pan r magnitude | 17.37 (0.004) | |||
| Pan i magnitude | 17.39 (0.004) | |||
| Pan z magnitude | 17.44 (0.008) | |||
| Pan y magnitude | 17.47 (0.009) | |||
| E(B-V) | 0.067 | |||
* 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.