All names: TIC 29840077, 2MASS J21060885-2539377, EC21032-2551, Gaia DR2 6803823552347267968, UCAC4 322-218066, Gaia DR3 6803823552347267968, EC 21032-2551, GALEX J210608.9-253936
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 21 06 08.91 | 21 06 08.85 (0.05) | ||
| Declination | -25 39 36.86 | -25 39 37.71 (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] | 0.30 (0.09) | 0.43 (0.05) | |
| Distance | [pc] | 3348.96 (974) | 2339.18 (274) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -0.112 (0.1) | -0.363 (0.06) | |
| Proper motion (declination) | [mas/yr] | 4.075 (0.08) | 3.771 (0.04) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 15.28 | |||
| V magnitude | 15.55 | |||
| R magnitude | 15.81 (0.1) | |||
| I magnitude | ||||
| J magnitude | 16.01 (0.07) | 16.01 (0.07) | ||
| H magnitude | 16.14 (0.2) | 16.14 (0.2) | ||
| K magnitude | 17.10 | |||
| u magnitude | ||||
| g magnitude | ||||
| r magnitude | ||||
| i magnitude | ||||
| z magnitude | ||||
| G magnitude | 15.43 (0.0009) | 15.42 (0.003) | ||
| BP magnitude | 15.23 (0.01) | |||
| RP magnitude | 15.63 (0.003) | |||
| Pan g magnitude | 15.29 (0.004) | |||
| Pan r magnitude | 15.64 (0.003) | |||
| Pan i magnitude | 15.97 (0.002) | |||
| Pan z magnitude | 16.23 (0.004) | |||
| Pan y magnitude | 16.39 (0.005) | |||
| E(B-V) | 0.052 | |||
* 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.