All names: 2MASS J20261019-2553283, BPS CS 22955-0079, Gaia DR2 6848145828137560832, TIC 164664164, BPSCS22955-79, EC 20231-2603, Gaia DR3 6848145828137560832, GALEX J202610.1-255328
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 20 26 10.18 | 20 26 10.20 (0.06) | ||
| Declination | -25 53 28.43 | -25 53 28.35 (0.04) | ||
| Spectral type | sdB | 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] | 0.22 (0.09) | 0.33 (0.06) | |
| Distance | [pc] | 4587.16 (1816) | 2992.22 (560) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -0.087 (0.1) | 0.013 (0.06) | |
| Proper motion (declination) | [mas/yr] | -1.162 (0.09) | -1.048 (0.05) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 15.81 | |||
| V magnitude | 16.00 | |||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 16.64 (0.1) | 16.64 (0.1) | ||
| H magnitude | 16.63 | |||
| K magnitude | 17.20 | |||
| u magnitude | ||||
| g magnitude | ||||
| r magnitude | ||||
| i magnitude | ||||
| z magnitude | ||||
| G magnitude | 16.11 (0.002) | 16.08 (0.003) | ||
| BP magnitude | 15.86 (0.01) | |||
| RP magnitude | 16.36 (0.008) | |||
| Pan g magnitude | 15.92 (0.002) | |||
| Pan r magnitude | 16.35 (0.002) | |||
| Pan i magnitude | 16.70 (0.003) | |||
| Pan z magnitude | 16.97 (0.005) | |||
| Pan y magnitude | 17.19 (0.007) | |||
| E(B-V) | 0.065 | |||
* 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.