All names: EC 23138-7613, GSC 09476-02462, Gaia EDR3 6378286851313682816, WISEA J231719.73-755650.4, GALEX J231719.6-755649, EC23138-7613, Gaia DR2 6378286851313682816, Gaia DR3 6378286851313682816, WISE J231719.85-755650.4, DENIS J231719.8-755650, TIC 471015301, JL 132, TIC 2054658456
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 23 17 20.00 (0.04) | 23 17 19.60 | 23 17 19.88 (0.04) | ||
| Declination | -75 56 50.78 (0.04) | -75 56 49.16 | -75 56 50.34 (0.04) | ||
| 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] | 0.46 (0.05) | 0.46 (0.07) | 0.46 (0.05) | |
| Distance | [pc] | 2155.64 (255) | 2193.46 (346) | 2155.64 (255) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | 26.205 (0.06) | 26.06 (0.1) | 26.205 (0.06) | |
| Proper motion (declination) | [mas/yr] | -27.737 (0.06) | -27.7 (0.1) | -27.737 (0.06) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 16.36 | ||||
| V magnitude | 16.49 | ||||
| R magnitude | |||||
| I magnitude | 16.71 (0.1) | ||||
| J magnitude | |||||
| H magnitude | |||||
| K magnitude | |||||
| u magnitude | |||||
| g magnitude | |||||
| r magnitude | |||||
| i magnitude | |||||
| z magnitude | |||||
| G magnitude | 16.46 (0.003) | 16.48 (0.002) | 16.46 (0.003) | ||
| BP magnitude | 16.32 (0.005) | 16.27 (0.01) | |||
| RP magnitude | 16.73 (0.006) | 16.73 (0.006) | |||
| Pan g magnitude | |||||
| Pan r magnitude | |||||
| Pan i magnitude | |||||
| Pan z magnitude | |||||
| Pan y magnitude | |||||
| 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.