All names: GALEXJ17523+1910, UCAC4 546-065665, WISEA J175219.66+191043.8, GALEX J175219.7+191042, TIC 298804185, Gaia DR3 4551747280210370176, WISE J175219.67+191043.7, 2MASS J17521970+1910432, Gaia DR2 4551747280210370176
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 17 52 19.71 | 17 52 19.71 (0.02) | ||
| Declination | 19 10 42.20 | 19 10 43.51 (0.02) | ||
| Spectral type | He-sdOB | sdOBHe | ||
| 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] | 0.57 (0.04) | 0.55 (0.03) | |
| Distance | [pc] | 1745.51 (122) | 1834.53 (110) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -1.389 (0.06) | -1.451 (0.03) | |
| Proper motion (declination) | [mas/yr] | -6.653 (0.07) | -6.752 (0.04) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 14.79 (0.1) | |||
| V magnitude | 15.02 (0.03) | |||
| R magnitude | 15.39 (0.1) | |||
| I magnitude | ||||
| J magnitude | 15.49 (0.05) | 15.49 (0.05) | ||
| H magnitude | 15.48 (0.1) | 15.48 (0.1) | ||
| K magnitude | 15.43 (0.2) | 15.43 (0.2) | ||
| u magnitude | ||||
| g magnitude | 14.79 (0.05) | |||
| r magnitude | 15.23 (0.01) | |||
| i magnitude | ||||
| z magnitude | ||||
| G magnitude | 14.97 (0.0005) | 14.96 (0.003) | ||
| BP magnitude | 14.78 (0.006) | |||
| RP magnitude | 15.19 (0.002) | |||
| Pan g magnitude | 14.81 (0.005) | |||
| Pan r magnitude | 15.19 (0.004) | |||
| Pan i magnitude | 15.54 (0.002) | |||
| Pan z magnitude | 15.80 (0.003) | |||
| Pan y magnitude | 15.98 (0.003) | |||
| E(B-V) | 0.080 | |||
* 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.