All names: GSC 09482-00059, EC21337-8049, Gaia DR3 6348665870622571648, JL 83, 2MASS J21401818-8035321, EC 21337-8049, TIC 354947623, GALEX J214017.7-803531, Gaia DR2 6348665870622571648
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 21 40 18.05 | 21 40 18.26 (0.02) | ||
| Declination | -80 35 32.24 | -80 35 32.16 (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] | 0.75 (0.04) | 0.77 (0.03) | |
| Distance | [pc] | 1335.11 (71) | 1292.32 (51) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 9.219 (0.07) | 9.268 (0.03) | |
| Proper motion (declination) | [mas/yr] | -11.124 (0.06) | -11.175 (0.03) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 15.45 | |||
| V magnitude | 15.42 | |||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 15.68 (0.07) | 15.68 (0.07) | ||
| H magnitude | 15.73 (0.2) | 15.73 (0.2) | ||
| K magnitude | 15.23 | |||
| u magnitude | ||||
| g magnitude | ||||
| r magnitude | ||||
| i magnitude | ||||
| z magnitude | ||||
| G magnitude | 15.40 (0.0006) | 15.38 (0.003) | ||
| BP magnitude | 15.30 (0.006) | |||
| RP magnitude | 15.47 (0.003) | |||
| Pan g magnitude | ||||
| Pan r magnitude | ||||
| Pan i magnitude | ||||
| Pan z magnitude | ||||
| Pan y magnitude | ||||
| E(B-V) | 0.130 | |||
* 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.