All names: Gaia DR3 1873589052344459136, 2MASS J22275839+2006227, TYC 1703-394-1, GALEX J222758.5+200623, Gaia DR1 1873589048048631808, GALEXJ222758.59+200623.32, GSC 01703-00394, Gaia DR2 1873589052344459136, TIC 411303804, GALEX J222758.4+200624, Gaia EDR3 1873588773171010176
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 22 28 01.11 (0.6) | 22 27 58.59 | 22 27 58.41 (0.03) | ||
| Declination | 20 04 56.35 (0.5) | 20 06 23.32 | 20 06 22.66 (0.02) | ||
| Spectral type | sdB+F5V | sdB+F5V | |||
| Effective temperature | [K] | 30540.0 (1520) | |||
| log(g) | [cgs] | 5.76 (0.4) | |||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 1.37 (0.8) | 2.75 (0.05) | 2.83 (0.03) | |
| Distance | [pc] | 727.33 (411) | 363.44 (7) | 352.81 (4) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | 4.465 (0.7) | 20.306 (0.09) | 20.358 (0.04) | |
| Proper motion (declination) | [mas/yr] | -6.768 (0.7) | 3.001 (0.07) | 2.523 (0.03) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 10.87 (0.06) | ||||
| V magnitude | 10.56 (0.06) | ||||
| R magnitude | |||||
| I magnitude | |||||
| J magnitude | 10.04 (0.02) | 10.04 (0.02) | |||
| H magnitude | 9.94 (0.02) | 9.94 (0.02) | |||
| K magnitude | 9.90 (0.02) | 9.90 (0.02) | |||
| u magnitude | 11.85 (0.001) | ||||
| g magnitude | |||||
| r magnitude | |||||
| i magnitude | |||||
| z magnitude | 13.25 (0.01) | ||||
| G magnitude | 20.36 (0.007) | 10.64 (0.0005) | 10.64 (0.003) | ||
| BP magnitude | 20.76 (0.2) | 10.78 (0.003) | |||
| RP magnitude | 19.81 (0.08) | 10.40 (0.002) | |||
| Pan g magnitude | 11.28 (0.05) | ||||
| Pan r magnitude | 14.16 (0.003) | ||||
| Pan i magnitude | 12.61 (0.04) | ||||
| Pan z magnitude | 13.57 (0.2) | ||||
| Pan y magnitude | |||||
| E(B-V) | 0.044 | ||||
* 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.