All names: FBS 1722+356, Gaia DR2 1336626880880309248, PG1722+353, TIC 39201720, 2MASS J17243546+3534177, Gaia DR3 1336626880880309248, PG 1722+353, FBS B 599, Gaia EDR3 1336626880880309248, SDSS J172435.46+353417.9
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 17 24 35.46 (0.02) | 17 24 35.48 | 17 24 35.47 (0.02) | ||
| Declination | 35 34 18.01 (0.02) | 35 34 17.51 | 35 34 17.86 (0.02) | ||
| 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] | 0.85 (0.03) | 0.83 (0.04) | 0.85 (0.03) | |
| Distance | [pc] | 1178.41 (37) | 1208.75 (57) | 1178.41 (37) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | -4.425 (0.03) | -4.402 (0.07) | -4.425 (0.03) | |
| Proper motion (declination) | [mas/yr] | 9.095 (0.03) | 9.099 (0.07) | 9.095 (0.03) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 14.71 | ||||
| V magnitude | |||||
| R magnitude | |||||
| I magnitude | |||||
| J magnitude | 15.54 (0.05) | 15.54 (0.05) | |||
| H magnitude | 15.84 (0.1) | 15.84 (0.1) | |||
| K magnitude | 15.42 (0.2) | 15.42 (0.2) | |||
| u magnitude | 14.78 (0.004) | 14.77 (0.02) | |||
| g magnitude | 14.81 (0.003) | 14.83 (0.01) | |||
| r magnitude | 15.29 (0.003) | 15.29 (0.009) | |||
| i magnitude | 15.62 (0.004) | 15.62 (0.02) | |||
| z magnitude | 15.94 (0.006) | 15.92 (0.02) | |||
| G magnitude | 15.05 (0.003) | 15.07 (0.0007) | 15.05 (0.003) | ||
| BP magnitude | 14.94 (0.003) | 14.88 (0.006) | |||
| RP magnitude | 15.29 (0.004) | 15.28 (0.003) | |||
| Pan g magnitude | 14.89 (0.003) | ||||
| Pan r magnitude | 15.28 (0.002) | ||||
| Pan i magnitude | 15.61 (0.002) | ||||
| Pan z magnitude | 15.89 (0.004) | ||||
| Pan y magnitude | 16.04 (0.005) | ||||
| E(B-V) | 0.027 | ||||
* 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.