All names: 2MASS J02245476+0109394, UCAC4 456-003075, TIC 420049852, Gaia DR3 2501511789255397248, Gaia DR2 2501511789255397248, LAMOST J022454.75+010939.7, GALEX J022454.8+010938, WISE J022454.77+010939.3, GALEXJ022454.87+010938.81
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 02 24 54.87 | 02 24 54.77 (0.03) | ||
| Declination | 01 09 38.81 | 01 09 39.55 (0.02) | ||
| Spectral type | sdB+F4V | sdB+F4V | ||
| Effective temperature | [K] | 28000.0 (1020) | ||
| log(g) | [cgs] | 5.45 (0.2) | ||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 1.64 (0.05) | 1.60 (0.03) | |
| Distance | [pc] | 611.32 (18) | 625.43 (10) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 15.419 (0.09) | 15.907 (0.03) | |
| Proper motion (declination) | [mas/yr] | -20.464 (0.08) | -20.364 (0.02) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 12.36 (0.03) | |||
| V magnitude | 12.18 (0.02) | |||
| R magnitude | 12.25 (0.09) | |||
| I magnitude | ||||
| J magnitude | 11.64 (0.02) | 11.64 (0.02) | ||
| H magnitude | 11.46 (0.03) | 11.46 (0.03) | ||
| K magnitude | 11.43 (0.02) | 11.43 (0.02) | ||
| u magnitude | 14.16 (0.005) | |||
| g magnitude | 12.21 (0.03) | |||
| r magnitude | 14.70 (0.01) | 12.21 (0.03) | ||
| i magnitude | 12.20 (0.001) | 12.19 (0.1) | ||
| z magnitude | 13.46 (0.006) | |||
| G magnitude | 12.13 (0.0003) | 12.12 (0.003) | ||
| BP magnitude | 12.20 (0.004) | |||
| RP magnitude | 11.92 (0.002) | |||
| Pan g magnitude | 12.41 | |||
| Pan r magnitude | 12.28 | |||
| Pan i magnitude | 12.30 | |||
| Pan z magnitude | 12.37 | |||
| Pan y magnitude | 12.37 (0.006) | |||
| E(B-V) | 0.030 | |||
* 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.