All names: Gaia DR2 1745058135922732544, SDSSJ211151.85+111937.6, 2MASS J21115186+1119379, Gaia EDR3 1745058135922732544, SDSS J211151.85+111937.6, TIC 321788414, GALEX J211151.8+111938, Gaia DR3 1745058135922732544
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 21 11 51.86 (0.05) | 21 11 51.85 | 21 11 51.86 (0.05) | ||
| Declination | 11 19 37.61 (0.03) | 11 19 37.60 | 11 19 37.71 (0.03) | ||
| Spectral type | sdOB | sdB0He11 | |||
| Effective temperature | [K] | 37001.0 (916) | |||
| log(g) | [cgs] | 5.88 (0.1) | |||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 0.54 (0.07) | 0.49 (0.1) | 0.54 (0.07) | |
| Distance | [pc] | 1848.09 (227) | 2042.07 (452) | 1848.09 (227) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | -1.612 (0.06) | -1.576 (0.1) | -1.612 (0.06) | |
| Proper motion (declination) | [mas/yr] | -6.667 (0.04) | -6.798 (0.1) | -6.667 (0.04) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | |||||
| V magnitude | |||||
| R magnitude | |||||
| I magnitude | |||||
| J magnitude | 16.51 (0.1) | 16.51 (0.1) | |||
| H magnitude | 15.86 | ||||
| K magnitude | 16.55 | ||||
| u magnitude | 16.10 (0.006) | 16.10 (0.006) | |||
| g magnitude | 16.32 (0.004) | 16.32 (0.004) | |||
| r magnitude | 16.72 (0.004) | 16.72 (0.004) | |||
| i magnitude | 16.98 (0.005) | 16.98 (0.005) | |||
| z magnitude | 17.17 (0.01) | 17.17 (0.01) | |||
| G magnitude | 16.49 (0.003) | 16.51 (0.001) | 16.49 (0.003) | ||
| BP magnitude | 16.38 (0.005) | 16.33 (0.007) | |||
| RP magnitude | 16.64 (0.006) | 16.65 (0.005) | |||
| Pan g magnitude | 16.37 (0.008) | ||||
| Pan r magnitude | 16.72 (0.003) | ||||
| Pan i magnitude | 16.99 (0.002) | ||||
| Pan z magnitude | 17.18 (0.005) | ||||
| Pan y magnitude | 17.28 (0.008) | ||||
| E(B-V) | 0.060 | ||||
* 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.