All names: UCAC2 41469963, 2MASS J22482505+2714475, UCAC4 587-127286, SDSS J224825.05+271447.4, WISE J224825.05+271447.3, GALEX J224825.0+271447, GALEXJ22484+2714, WISEA J224825.05+271447.3, TIC 44107585, Gaia DR2 1883850072814402048, Gaia DR3 1883850072814402048
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 22 48 25.01 | 22 48 25.05 (0.01) | ||
| Declination | 27 14 47.90 | 27 14 47.51 (0.02) | ||
| Spectral type | sdB+MS | 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] | 0.98 (0.04) | 0.90 (0.02) | |
| Distance | [pc] | 1015.23 (38) | 1112.72 (24) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -1.799 (0.05) | -1.464 (0.02) | |
| Proper motion (declination) | [mas/yr] | -13.31 (0.05) | -13.392 (0.02) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 13.25 (0.04) | |||
| V magnitude | 13.15 (0.04) | |||
| R magnitude | 13.10 (0.05) | |||
| I magnitude | ||||
| J magnitude | 12.53 (0.02) | 12.53 (0.02) | ||
| H magnitude | 12.32 (0.02) | 12.32 (0.02) | ||
| K magnitude | 12.26 (0.02) | 12.26 (0.02) | ||
| u magnitude | 14.09 (0.005) | |||
| g magnitude | 13.25 (0.002) | 13.10 (0.02) | ||
| r magnitude | ||||
| i magnitude | 13.29 (0.002) | 13.16 (0.04) | ||
| z magnitude | 13.58 (0.006) | |||
| G magnitude | 13.01 (0.0002) | 12.99 (0.003) | ||
| BP magnitude | 13.07 (0.002) | |||
| RP magnitude | 12.80 (0.0006) | |||
| Pan g magnitude | 13.40 | |||
| Pan r magnitude | 13.24 | |||
| Pan i magnitude | 13.23 | |||
| Pan z magnitude | 13.26 (0.01) | |||
| Pan y magnitude | 13.26 (0.004) | |||
| E(B-V) | 0.057 | |||
* 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.