All names: 2MASS J22413825-1439387, PHL 374, TIC 240767378, Gaia EDR3 2596881950380337536, Gaia DR2 2596881950380337536, GALEX J224138.2-143937, HE2238-1455, Gaia DR3 2596881950380337536, EC 22389-1455, HE 2238-1455
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 22 41 38.24 (0.06) | 22 41 38.26 | 22 41 38.23 (0.06) | ||
| Declination | -14 39 38.93 (0.05) | -14 39 39.49 | -14 39 38.89 (0.05) | ||
| Spectral type | sdB | sdB | |||
| Effective temperature | [K] | 30393.0 (500) | |||
| log(g) | [cgs] | 5.47 (0.05) | |||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 0.47 (0.06) | 0.40 (0.08) | 0.47 (0.06) | |
| Distance | [pc] | 2136.75 (291) | 2479.54 (522) | 2136.75 (291) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | 7.05 (0.07) | 7.006 (0.1) | 7.05 (0.07) | |
| Proper motion (declination) | [mas/yr] | -2.842 (0.06) | -2.813 (0.1) | -2.842 (0.06) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 16.00 | ||||
| V magnitude | 16.80 | ||||
| R magnitude | |||||
| I magnitude | |||||
| J magnitude | 16.57 (0.1) | 16.57 (0.1) | |||
| H magnitude | 16.73 | ||||
| K magnitude | 15.72 (0.2) | 15.72 (0.2) | |||
| u magnitude | |||||
| g magnitude | |||||
| r magnitude | |||||
| i magnitude | |||||
| z magnitude | |||||
| G magnitude | 16.09 (0.003) | 16.12 (0.002) | 16.09 (0.003) | ||
| BP magnitude | 15.96 (0.005) | 15.92 (0.01) | |||
| RP magnitude | 16.37 (0.008) | 16.36 (0.007) | |||
| Pan g magnitude | |||||
| Pan r magnitude | |||||
| Pan i magnitude | |||||
| Pan z magnitude | |||||
| Pan y magnitude | 19.82 (0.02) | ||||
| E(B-V) | 0.042 | ||||
* 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.