All names: Gaia DR2 2730145371006786816, GALEX J223314.9+121934, 2MASS J22331490+1219338, TIC 210030485, SDSSJ223314.90+121934.0, Gaia DR3 2730145371006786816, SDSS J223314.90+121934.0, PG 2230+121, [BGK2006] J223314.90+121934.1
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 22 33 14.91 | 22 33 14.91 (0.06) | ||
| Declination | 12 19 34.07 | 12 19 34.05 (0.07) | ||
| 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] | 0.22 (0.1) | 0.24 (0.07) | |
| Distance | [pc] | 4566.21 (2050) | 4133.94 (1135) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 2.812 (0.2) | 3.031 (0.07) | |
| Proper motion (declination) | [mas/yr] | -3.921 (0.2) | -3.39 (0.08) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 16.24 | |||
| V magnitude | ||||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 16.09 (0.09) | 16.09 (0.09) | ||
| H magnitude | 15.85 (0.1) | 15.85 (0.1) | ||
| K magnitude | 16.89 | |||
| u magnitude | 16.09 (0.005) | 16.09 (0.005) | ||
| g magnitude | 15.76 (0.004) | 15.76 (0.004) | ||
| r magnitude | 16.09 (0.004) | 16.09 (0.004) | ||
| i magnitude | 16.33 (0.005) | 16.33 (0.005) | ||
| z magnitude | 16.54 (0.008) | 16.54 (0.008) | ||
| G magnitude | 15.96 (0.002) | 15.94 (0.003) | ||
| BP magnitude | 15.89 (0.008) | |||
| RP magnitude | 16.03 (0.004) | |||
| Pan g magnitude | 15.84 (0.003) | |||
| Pan r magnitude | 16.10 (0.004) | |||
| Pan i magnitude | 16.36 (0.003) | |||
| Pan z magnitude | 16.55 (0.005) | |||
| Pan y magnitude | 16.64 (0.006) | |||
| E(B-V) | 0.059 | |||
* 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.