All names: 2MASS J04250749-2337523, EC 04230-2344, GALEX J042507.5-233752, TIC 139682931, Gaia DR2 4896518942306335488, Gaia DR3 4896518942306335488, EC04230-2344, UCAC4 332-005293
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 04 25 07.46 | 04 25 07.49 (0.01) | ||
| Declination | -23 37 52.50 | -23 37 52.45 (0.02) | ||
| 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] | 0.09 (0.04) | 0.09 (0.03) | |
| Distance | [pc] | 11560.69 (5359) | 11750.88 (3977) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 1.248 (0.05) | 1.22 (0.02) | |
| Proper motion (declination) | [mas/yr] | 2.869 (0.06) | 2.795 (0.03) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 14.92 (0.05) | |||
| V magnitude | 14.97 (0.04) | |||
| R magnitude | 15.30 (0.2) | |||
| I magnitude | ||||
| J magnitude | 15.16 (0.04) | 15.16 (0.04) | ||
| H magnitude | 15.14 (0.06) | 15.14 (0.06) | ||
| K magnitude | 15.27 (0.2) | 15.27 (0.2) | ||
| u magnitude | ||||
| g magnitude | 14.85 (0.04) | |||
| r magnitude | 15.12 (0.03) | |||
| i magnitude | 15.48 (0.1) | |||
| z magnitude | ||||
| G magnitude | 14.98 (0.0004) | 14.96 (0.003) | ||
| BP magnitude | 14.90 (0.004) | |||
| RP magnitude | 15.03 (0.002) | |||
| Pan g magnitude | 14.86 (0.005) | |||
| Pan r magnitude | 15.13 (0.002) | |||
| Pan i magnitude | 15.36 (0.003) | |||
| Pan z magnitude | 15.56 (0.004) | |||
| Pan y magnitude | 15.62 (0.008) | |||
| E(B-V) | 0.018 | |||
* 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.