All names: Gaia DR2 1350139638267524608, Gaia DR3 1350139638267524608, 2MASS J17470090+4454277, SDSS J174700.97+445427.9, SDSSJ174700.96+445428.1, TIC 193633529, SDSS J174700.96+445428.1, Gaia EDR3 1350139638267524608, GALEX J174700.9+445425
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 17 47 00.96 (0.03) | 17 47 00.96 | 17 47 00.97 (0.03) | ||
| Declination | 44 54 27.85 (0.04) | 44 54 27.88 | 44 54 27.92 (0.04) | ||
| Spectral type | sd | sd | |||
| 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] | 0.41 (0.04) | 0.36 (0.05) | 0.41 (0.04) | |
| Distance | [pc] | 2463.05 (228) | 2775.46 (400) | 2463.05 (228) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | -2.002 (0.04) | -1.92 (0.09) | -2.002 (0.04) | |
| Proper motion (declination) | [mas/yr] | -4.152 (0.05) | -4.067 (0.1) | -4.152 (0.05) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | |||||
| V magnitude | |||||
| R magnitude | |||||
| I magnitude | |||||
| J magnitude | 16.80 (0.1) | 16.80 (0.1) | |||
| H magnitude | 17.02 | ||||
| K magnitude | 17.25 | ||||
| u magnitude | 15.94 (0.005) | 15.90 (0.02) | |||
| g magnitude | 16.08 (0.004) | 16.07 (0.01) | |||
| r magnitude | 16.56 (0.005) | 16.56 (0.009) | |||
| i magnitude | 16.91 (0.006) | 16.91 (0.02) | |||
| z magnitude | 17.17 (0.01) | 17.17 (0.02) | |||
| G magnitude | 16.32 (0.003) | 16.34 (0.002) | 16.32 (0.003) | ||
| BP magnitude | 16.19 (0.004) | 16.13 (0.01) | |||
| RP magnitude | 16.57 (0.006) | 16.57 (0.007) | |||
| Pan g magnitude | 16.16 (0.009) | ||||
| Pan r magnitude | 16.57 (0.004) | ||||
| Pan i magnitude | 16.91 (0.003) | ||||
| Pan z magnitude | 17.18 (0.004) | ||||
| Pan y magnitude | 17.34 (0.01) | ||||
| 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.