All names: SDSSJ192021.64+363537.1, SDSS J192021.65+363537.1, SDSS J192021.64+363537.1, 2MASS J19202167+3635371, TIC 122220183, Gaia DR2 2050891658883180672, Gaia DR3 2050891658883180672
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 19 20 21.65 | 19 20 21.64 (0.03) | ||
| Declination | 36 35 37.14 | 36 35 37.09 (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] | 0.08 (0.05) | 0.07 (0.03) | |
| Distance | [pc] | 12515.64 (7127) | 14184.40 (6217) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -0.702 (0.08) | -0.69 (0.03) | |
| Proper motion (declination) | [mas/yr] | -2.49 (0.09) | -2.631 (0.04) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | ||||
| V magnitude | ||||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 16.39 (0.1) | 16.39 (0.1) | ||
| H magnitude | 15.60 | |||
| K magnitude | 15.58 (0.2) | |||
| u magnitude | 16.30 (0.006) | 16.30 (0.006) | ||
| g magnitude | 15.78 (0.003) | 15.78 (0.003) | ||
| r magnitude | 16.06 (0.004) | 16.06 (0.004) | ||
| i magnitude | 16.27 (0.004) | 16.27 (0.004) | ||
| z magnitude | 16.43 (0.009) | 16.43 (0.009) | ||
| G magnitude | 15.95 (0.0008) | 15.93 (0.003) | ||
| BP magnitude | 15.90 (0.006) | |||
| RP magnitude | 15.96 (0.004) | |||
| Pan g magnitude | 15.87 (0.003) | |||
| Pan r magnitude | 16.07 (0.002) | |||
| Pan i magnitude | 16.31 (0.004) | |||
| Pan z magnitude | 16.47 (0.005) | |||
| Pan y magnitude | 16.55 (0.01) | |||
| E(B-V) | 0.088 | |||
* 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.