All names: EC21311-7500, EC 21311-7500, UCAC4 077-045884, Gaia DR2 6370371123508183168, GALEX J213610.1-744702, Gaia DR3 6370371123508183168, TIC 352479571, 2MASS J21361014-7447029
| Parameter | Unit | Geier 2020 | Simbad |
|---|---|---|---|
| Right ascension | 21 36 10.28 | 21 36 10.26 (0.03) | |
| Declination | -74 47 02.98 | -74 47 03.29 (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] | -0.06 (0.05) | |
| Distance | [pc] | ||
| Composition | |||
| Proper motion (right ascension) | [mas/yr] | 0.234 (0.07) | 0.217 (0.04) |
| Proper motion (declination) | [mas/yr] | -1.899 (0.09) | -1.941 (0.04) |
| Variability | |||
| Magnetic | |||
| Bd | [MG] | ||
| Infrared excess (disk) | |||
| Binarity | |||
| B magnitude | 16.14 (0.1) | ||
| V magnitude | 16.16 (0.01) | ||
| R magnitude | 16.19 (0.4) | ||
| I magnitude | |||
| J magnitude | 16.16 (0.1) | 16.16 (0.1) | |
| H magnitude | 15.94 | ||
| K magnitude | 15.50 (0.2) | 15.50 (0.2) | |
| u magnitude | |||
| g magnitude | |||
| r magnitude | |||
| i magnitude | |||
| z magnitude | |||
| G magnitude | 16.12 (0.0009) | 16.10 (0.003) | |
| BP magnitude | 16.04 (0.005) | ||
| RP magnitude | 16.16 (0.006) | ||
| Pan g magnitude | |||
| Pan r magnitude | |||
| Pan i magnitude | |||
| Pan z magnitude | |||
| Pan y magnitude | |||
| E(B-V) | |||
* 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.