All names: EC 23473-2340, UCAC4 334-220373, 2MASS J23495765-2323540, BPS CS 29499-0052, GALEX J234957.6-232353, WISE J234957.66-232354.0, EC23473-2340, TIC 89529774, Gaia DR2 2339276172812455808, Gaia DR3 2339276172812455808
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 23 49 57.60 | 23 49 57.67 (0.02) | ||
| Declination | -23 23 53.81 | -23 23 54.25 (0.02) | ||
| Spectral type | sdB+F4 | F4+sd? | ||
| 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] | 0.38 (0.03) | 0.44 (0.02) | |
| Distance | [pc] | 2634.35 (223) | 2262.96 (120) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 5.036 (0.06) | 4.857 (0.03) | |
| Proper motion (declination) | [mas/yr] | 2.212 (0.05) | 2.14 (0.02) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 14.73 (0.04) | |||
| V magnitude | 14.39 (0.02) | |||
| R magnitude | 14.40 (0.08) | |||
| I magnitude | ||||
| J magnitude | 13.63 (0.03) | 13.63 (0.03) | ||
| H magnitude | 13.40 (0.03) | 13.40 (0.03) | ||
| K magnitude | 13.31 (0.03) | 13.31 (0.03) | ||
| u magnitude | ||||
| g magnitude | 14.52 (0.04) | |||
| r magnitude | 14.30 (0.05) | |||
| i magnitude | 14.44 (0.1) | |||
| z magnitude | ||||
| G magnitude | 14.31 (0.0004) | 14.29 (0.003) | ||
| BP magnitude | 14.45 (0.003) | |||
| RP magnitude | 14.00 (0.002) | |||
| Pan g magnitude | 15.02 (0.002) | |||
| Pan r magnitude | ||||
| Pan i magnitude | ||||
| Pan z magnitude | ||||
| Pan y magnitude | 17.82 (0.06) | |||
| E(B-V) | 0.013 | |||
* 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.