All names: 2MASS J23153033-4223333, EC23127-4239, UCAC4 239-176272, Gaia DR3 6530179327513052288, Gaia DR2 6530179327513052288, TIC 139327355, EC 23127-4239, GALEX J231530.3-422333
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 23 15 30.46 | 23 15 30.39 (0.05) | ||
| Declination | -42 23 33.50 | -42 23 33.06 (0.05) | ||
| Spectral type | sdB | sdB/DAwk | ||
| 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 (0.1) | 0.19 (0.06) | |
| Distance | [pc] | 2655.34 (733) | 5243.84 (1724) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 8.632 (0.1) | 9.04 (0.07) | |
| Proper motion (declination) | [mas/yr] | -5.357 (0.2) | -5.848 (0.07) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 15.99 (0.06) | |||
| V magnitude | 16.16 (0.1) | |||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 16.65 (0.1) | 16.65 (0.1) | ||
| H magnitude | 16.56 (0.3) | 16.56 (0.3) | ||
| K magnitude | 15.01 | |||
| u magnitude | ||||
| g magnitude | 16.06 (0.01) | |||
| r magnitude | 16.27 (0.01) | |||
| i magnitude | ||||
| z magnitude | ||||
| G magnitude | 16.16 (0.002) | 16.14 (0.003) | ||
| BP magnitude | 15.96 (0.009) | |||
| RP magnitude | 16.36 (0.006) | |||
| Pan g magnitude | ||||
| Pan r magnitude | ||||
| Pan i magnitude | ||||
| Pan z magnitude | ||||
| Pan y magnitude | ||||
| E(B-V) | 0.009 | |||
* 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.