All names: 2MASS J21340263+1634244, GALEX J213402.6+163422, PG 2131+164, PG2131+164, LAMOST J213402.63+163422.9, Gaia DR3 1772138591918813056, TIC 96965905, SDSS J213402.62+163424.3, Gaia DR2 1772138591918813056
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 21 34 02.68 | 21 34 02.63 (0.03) | ||
| Declination | 16 34 25.64 | 16 34 24.41 (0.03) | ||
| Spectral type | sdOB | sdB | ||
| Effective temperature | [K] | 39021.0 (191) | ||
| log(g) | [cgs] | 5.75 (0.03) | ||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 0.92 (0.05) | 0.93 (0.04) | |
| Distance | [pc] | 1085.78 (61) | 1070.78 (41) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -9.435 (0.09) | -9.344 (0.04) | |
| Proper motion (declination) | [mas/yr] | -11.375 (0.09) | -11.309 (0.04) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 14.98 | |||
| V magnitude | ||||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 14.92 (0.04) | 14.92 (0.04) | ||
| H magnitude | 15.03 (0.07) | 15.03 (0.07) | ||
| K magnitude | 15.05 (0.1) | 15.05 (0.1) | ||
| u magnitude | 13.95 (0.003) | 13.95 (0.02) | ||
| g magnitude | 14.18 (0.003) | 14.21 (0.01) | ||
| r magnitude | 14.61 (0.003) | 14.62 (0.02) | ||
| i magnitude | 14.91 (0.003) | 14.90 (0.008) | ||
| z magnitude | 15.21 (0.005) | 15.21 (0.02) | ||
| G magnitude | 14.44 (0.0008) | 14.43 (0.003) | ||
| BP magnitude | 14.27 (0.009) | |||
| RP magnitude | 14.63 (0.003) | |||
| Pan g magnitude | ||||
| Pan r magnitude | 19.34 (0) | |||
| Pan i magnitude | 20.61 (0.06) | |||
| Pan z magnitude | ||||
| Pan y magnitude | ||||
| 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.