All names: GALEX J232640.3-285446, GD 1656, 2MASS J23264036-2854460, EC 23240-2911, EC23240-2911, UCAC4 306-286118, TIC 303315921, Gaia DR3 2330170494252223104, Gaia DR2 2330170494252223104, Gaia EDR3 2330170494252223104, PHL 523
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 23 26 40.37 (0.03) | 23 26 40.36 | 23 26 40.37 (0.03) | ||
| Declination | -28 54 46.12 (0.03) | -28 54 46.01 | -28 54 46.17 (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] | 0.83 (0.04) | 0.55 (0.2) | 0.83 (0.04) | |
| Distance | [pc] | 1211.24 (64) | 1823.49 (501) | 1211.24 (64) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | 2.866 (0.03) | 3.208 (0.1) | 2.866 (0.03) | |
| Proper motion (declination) | [mas/yr] | 2.983 (0.04) | 3.123 (0.2) | 2.983 (0.04) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 14.57 (0.03) | ||||
| V magnitude | 14.72 (0.04) | ||||
| R magnitude | |||||
| I magnitude | |||||
| J magnitude | 15.41 (0.05) | 15.41 (0.05) | |||
| H magnitude | 15.65 (0.1) | 15.65 (0.1) | |||
| K magnitude | 15.87 (0.2) | 15.87 (0.2) | |||
| u magnitude | |||||
| g magnitude | 14.57 (0.04) | ||||
| r magnitude | 14.98 (0.05) | ||||
| i magnitude | 15.34 (0.2) | ||||
| z magnitude | |||||
| G magnitude | 14.72 (0.003) | 14.73 (0.0009) | 14.72 (0.003) | ||
| BP magnitude | 14.57 (0.003) | 14.51 (0.01) | |||
| RP magnitude | 14.99 (0.004) | 15.00 (0.003) | |||
| Pan g magnitude | 14.56 (0.004) | ||||
| Pan r magnitude | 14.98 (0.005) | ||||
| Pan i magnitude | 15.34 (0.002) | ||||
| Pan z magnitude | 15.62 (0.004) | ||||
| Pan y magnitude | 15.79 (0.01) | ||||
| E(B-V) | 0.010 | ||||
* 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.