All names: GALEX J173831.4+511322, Gaia DR2 1368297175151177472, SDSS J173831.40+511323.1, 2MASS J17383141+5113229, SDSSJ173831.39+511323.4, SDSS J173831.39+511323.4, Gaia DR3 1368297175151177472, TIC 313591768
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 17 38 31.40 | 17 38 31.40 (0.05) | ||
| Declination | 51 13 23.11 | 51 13 23.13 (0.05) | ||
| 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] | 0.25 (0.07) | 0.26 (0.06) | |
| Distance | [pc] | 3974.56 (1163) | 3780.72 (793) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -0.341 (0.1) | -0.408 (0.06) | |
| Proper motion (declination) | [mas/yr] | -2.623 (0.1) | -2.464 (0.07) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | ||||
| V magnitude | ||||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 16.75 (0.1) | 16.75 (0.1) | ||
| H magnitude | 17.59 | |||
| K magnitude | 17.37 | |||
| u magnitude | 16.77 (0.007) | 16.78 (0.02) | ||
| g magnitude | 16.84 (0.004) | 16.87 (0.02) | ||
| r magnitude | 17.20 (0.005) | 17.21 (0.01) | ||
| i magnitude | 17.38 (0.006) | 17.36 (0.02) | ||
| z magnitude | 17.53 (0.01) | 17.51 (0.02) | ||
| G magnitude | 17.03 (0.001) | 17.00 (0.003) | ||
| BP magnitude | 16.91 (0.007) | |||
| RP magnitude | 17.04 (0.01) | |||
| Pan g magnitude | 16.93 (0.003) | |||
| Pan r magnitude | 17.20 (0.003) | |||
| Pan i magnitude | 17.39 (0.005) | |||
| Pan z magnitude | 17.52 (0.007) | |||
| Pan y magnitude | 17.61 (0.02) | |||
| E(B-V) | 0.030 | |||
* 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.