All names: Gaia DR2 74703607425569024, GALEX J022338.4+132735, TIC 408642707, PG0220+132, PG 0220+132, UCAC2 36404369, 2MASS J02233842+1327349, Gaia DR3 74703607425569024
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 02 23 38.41 | 02 23 38.42 (0.03) | ||
| Declination | 13 27 35.02 | 13 27 34.69 (0.03) | ||
| 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] | 1.02 (0.07) | 0.94 (0.04) | |
| Distance | [pc] | 980.20 (65) | 1067.01 (46) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 2.807 (0.1) | 2.782 (0.04) | |
| Proper motion (declination) | [mas/yr] | -3.116 (0.1) | -3.313 (0.04) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 14.63 (0.009) | |||
| V magnitude | 14.76 (0.006) | |||
| R magnitude | 14.81 (0.007) | |||
| I magnitude | 14.93 (0.03) | |||
| J magnitude | 15.16 (0.06) | 15.16 (0.06) | ||
| H magnitude | 15.09 (0.09) | 15.09 (0.09) | ||
| K magnitude | 14.84 | |||
| u magnitude | ||||
| g magnitude | ||||
| r magnitude | ||||
| i magnitude | ||||
| z magnitude | ||||
| G magnitude | 14.79 (0.001) | 14.77 (0.003) | ||
| BP magnitude | 14.66 (0.01) | |||
| RP magnitude | 14.92 (0.003) | |||
| Pan g magnitude | 14.65 (0.003) | |||
| Pan r magnitude | 14.96 (0.005) | |||
| Pan i magnitude | 15.26 (0.003) | |||
| Pan z magnitude | 15.49 (0.002) | |||
| Pan y magnitude | 15.62 (0.005) | |||
| E(B-V) | 0.130 | |||
* 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.