All names: EC 21491-5603, 2MASS J21523481-5548599, Gaia EDR3 6460616357855932672, UCAC4 171-209192, Gaia DR3 6460616357855932672, Gaia DR2 6460616357855932672, TIC 469880418, EC21491-5603
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 21 52 34.83 (0.02) | 21 52 34.87 | 21 52 34.84 (0.02) | ||
| Declination | -55 48 59.94 (0.02) | -55 49 00.48 | -55 49 00.06 (0.02) | ||
| 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] | 0.94 (0.03) | 0.87 (0.04) | 0.94 (0.03) | |
| Distance | [pc] | 1063.38 (36) | 1143.25 (58) | 1063.38 (36) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | -2.55 (0.03) | -2.479 (0.07) | -2.55 (0.03) | |
| Proper motion (declination) | [mas/yr] | 7.329 (0.03) | 7.463 (0.07) | 7.329 (0.03) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 14.84 (0.03) | ||||
| V magnitude | 15.02 (0.04) | ||||
| R magnitude | 15.33 (0.03) | ||||
| I magnitude | |||||
| J magnitude | 15.64 (0.06) | 15.64 (0.06) | |||
| H magnitude | 15.92 (0.2) | 15.92 (0.2) | |||
| K magnitude | 15.55 (0.2) | 15.55 (0.2) | |||
| u magnitude | |||||
| g magnitude | 14.80 (0.01) | ||||
| r magnitude | 15.26 (0.04) | ||||
| i magnitude | 15.41 (0.01) | ||||
| z magnitude | |||||
| G magnitude | 14.99 (0.003) | 15.01 (0.0006) | 14.99 (0.003) | ||
| BP magnitude | 14.87 (0.003) | 14.81 (0.006) | |||
| RP magnitude | 15.23 (0.004) | 15.23 (0.002) | |||
| Pan g magnitude | |||||
| Pan r magnitude | |||||
| Pan i magnitude | |||||
| Pan z magnitude | |||||
| Pan y magnitude | |||||
| E(B-V) | 0.014 | ||||
* 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.