All names: Gaia DR3 2000888378318426496, Gaia EDR3 2000888305295470208, 2MASS J22172073+5052590, GSC 03618-03918, Gaia DR2 2000888378318426496, KPD2215+5037, SBC9 3347, TIC 430960919, UCAC4 705-100729, KPD 2215+5037
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 22 17 10.51 (0.1) | 22 17 20.62 | 22 17 20.74 (0.02) | ||
| Declination | 50 51 53.54 (0.1) | 50 52 58.09 | 50 52 58.93 (0.02) | ||
| Spectral type | sdB+WD | sdB | |||
| Effective temperature | [K] | 29600.0 | |||
| log(g) | [cgs] | 5.64 | |||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 0.37 (0.2) | 1.58 (0.05) | 1.59 (0.02) | |
| Distance | [pc] | 2671.65 (1287) | 634.08 (21) | 629.68 (9) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | -4.548 (0.2) | 4.684 (0.08) | 4.619 (0.03) | |
| Proper motion (declination) | [mas/yr] | -3.728 (0.2) | 10.756 (0.08) | 10.652 (0.02) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 13.59 (0.01) | ||||
| V magnitude | 13.64 (0.01) | ||||
| R magnitude | 14.00 (0.09) | ||||
| I magnitude | |||||
| J magnitude | 14.22 (0.04) | 14.22 (0.04) | |||
| H magnitude | 14.31 (0.04) | 14.31 (0.04) | |||
| K magnitude | 14.33 (0.07) | 14.33 (0.07) | |||
| u magnitude | |||||
| g magnitude | |||||
| r magnitude | |||||
| i magnitude | |||||
| z magnitude | |||||
| G magnitude | 18.75 (0.003) | 13.74 (0.002) | 13.73 (0.003) | ||
| BP magnitude | 18.74 (0.02) | 13.60 (0.007) | |||
| RP magnitude | 18.86 (0.04) | 13.86 (0.01) | |||
| Pan g magnitude | 13.45 | ||||
| Pan r magnitude | 14.00 (0.001) | ||||
| Pan i magnitude | 14.20 (0.01) | ||||
| Pan z magnitude | 14.51 (0.008) | ||||
| Pan y magnitude | 14.64 (0.01) | ||||
| E(B-V) | 0.116 | ||||
* 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.