All names: UCAC4 178-231791, EC23257-5443, Gaia DR2 6499440216512468096, 2MASS J23283215-5427115, GALEX J232832.0-542711, TIC 231712886, EC 23257-5443, Gaia DR3 6499440216512468096
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 23 28 32.00 | 23 28 32.15 (0.01) | ||
| Declination | -54 27 11.74 | -54 27 11.55 (0.02) | ||
| Spectral type | sdB+F | sdB+F | ||
| 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] | 1.96 (0.03) | 2.00 (0.03) | |
| Distance | [pc] | 510.73 (7) | 500.78 (7) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 10.87 (0.03) | 10.799 (0.02) | |
| Proper motion (declination) | [mas/yr] | -8.753 (0.04) | -8.739 (0.03) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 14.78 (0.3) | |||
| V magnitude | 14.29 (0.2) | |||
| R magnitude | 14.21 (0.2) | |||
| I magnitude | ||||
| J magnitude | 12.69 (0.02) | 12.69 (0.02) | ||
| H magnitude | 12.27 (0.02) | 12.27 (0.02) | ||
| K magnitude | 12.13 (0.02) | 12.13 (0.02) | ||
| u magnitude | ||||
| g magnitude | 14.52 (0.2) | |||
| r magnitude | 14.15 (0.1) | |||
| i magnitude | 13.93 (0.05) | |||
| z magnitude | ||||
| G magnitude | 14.53 (0.02) | 14.50 (0.02) | ||
| BP magnitude | 15.03 (0.08) | |||
| RP magnitude | 13.88 (0.04) | |||
| Pan g magnitude | ||||
| Pan r magnitude | ||||
| Pan i magnitude | ||||
| Pan z magnitude | ||||
| Pan y magnitude | ||||
| E(B-V) | 0.012 | |||
* 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.