All names: SDSS J211509.67+105225.1, 2MASS J21150967+1052249, Gaia DR2 1744785663197396864, SDSSJ211509.67+105225.1, Gaia DR3 1744785663197396864, UCAC4 505-139566, GALEX J211509.6+105225
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 21 15 09.67 | 21 15 09.67 (0.03) | ||
| Declination | 10 52 25.10 | 10 52 25.11 (0.03) | ||
| 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] | 0.16 (0.06) | 0.10 (0.04) | |
| Distance | [pc] | 6422.61 (2446) | 9551.10 (3403) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 1.089 (0.1) | 1.108 (0.04) | |
| Proper motion (declination) | [mas/yr] | -3.257 (0.09) | -3.514 (0.03) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 15.42 (0.05) | |||
| V magnitude | 15.48 (0.01) | |||
| R magnitude | 15.75 (0.1) | |||
| I magnitude | ||||
| J magnitude | 15.47 (0.05) | 15.47 (0.05) | ||
| H magnitude | 15.51 (0.1) | 15.51 (0.1) | ||
| K magnitude | 15.02 | |||
| u magnitude | 16.00 (0.006) | 16.00 (0.006) | ||
| g magnitude | 15.32 (0.003) | 15.37 (0.01) | ||
| r magnitude | 15.56 (0.005) | 15.63 (0.06) | ||
| i magnitude | 15.78 (0.005) | 15.76 (0.01) | ||
| z magnitude | 15.96 (0.008) | 15.96 (0.008) | ||
| G magnitude | 15.49 (0.0007) | 15.47 (0.003) | ||
| BP magnitude | 15.45 (0.004) | |||
| RP magnitude | 15.49 (0.004) | |||
| Pan g magnitude | 15.38 (0.002) | |||
| Pan r magnitude | 15.59 (0.003) | |||
| Pan i magnitude | 15.84 (0.002) | |||
| Pan z magnitude | 15.99 (0.005) | |||
| Pan y magnitude | 16.05 (0.005) | |||
| E(B-V) | 0.054 | |||
* 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.