All names: SDSS J175740.71+441054.3, FBS1756+442, Gaia DR3 1346490462254006656, TIC 193830152, FBS B 389, 2MASS J17574071+4410544, GALEX J175740.6+441053, Gaia DR2 1346490462254006656, Gaia EDR3 1346490462254006656, FBS 1756+441
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 17 57 40.72 (0.02) | 17 57 40.70 | 17 57 40.71 (0.02) | ||
| Declination | 44 10 54.54 (0.03) | 44 10 54.30 | 44 10 54.35 (0.03) | ||
| Spectral type | sd | 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] | 0.91 (0.03) | 0.83 (0.04) | 0.91 (0.03) | |
| Distance | [pc] | 1094.81 (34) | 1209.04 (65) | 1094.81 (34) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | 3.843 (0.03) | 3.929 (0.07) | 3.843 (0.03) | |
| Proper motion (declination) | [mas/yr] | 12.313 (0.04) | 12.52 (0.07) | 12.313 (0.04) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 14.09 | ||||
| V magnitude | 13.50 | ||||
| R magnitude | |||||
| I magnitude | |||||
| J magnitude | 15.59 (0.05) | 15.59 (0.05) | |||
| H magnitude | 15.73 (0.1) | 15.73 (0.1) | |||
| K magnitude | 15.42 | ||||
| u magnitude | 14.79 (0.005) | 14.55 (0.01) | |||
| g magnitude | 14.97 (0.005) | 14.76 (0.01) | |||
| r magnitude | 15.20 (0.01) | ||||
| i magnitude | 15.74 (0.007) | 15.51 (0.01) | |||
| z magnitude | 15.91 (0.008) | 15.81 (0.02) | |||
| G magnitude | 14.99 (0.003) | 15.01 (0.0008) | 15.00 (0.003) | ||
| BP magnitude | 14.87 (0.003) | 14.81 (0.006) | |||
| RP magnitude | 15.22 (0.005) | 15.22 (0.003) | |||
| Pan g magnitude | 14.85 (0.002) | ||||
| Pan r magnitude | 15.23 (0.002) | ||||
| Pan i magnitude | 15.55 (0.002) | ||||
| Pan z magnitude | 15.82 (0.004) | ||||
| Pan y magnitude | 16.01 (0.004) | ||||
| E(B-V) | 0.031 | ||||
* 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.