All names: SDSS J173812.43+263408.5, UCAC4 583-058274, 2MASS J17381243+2634085, Gaia DR2 4594148468665436672, TIC 311521201, GALEXJ17382+2634, Gaia DR3 4594148468665436672, GALEX J173812.4+263408
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 17 38 12.48 | 17 38 12.43 (0.02) | ||
| Declination | 26 34 08.97 | 26 34 08.57 (0.02) | ||
| Spectral type | sdB | sdB | ||
| Effective temperature | [K] | 22880.0 (800) | ||
| log(g) | [cgs] | 5.56 (0.1) | ||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 1.26 (0.03) | 1.27 (0.02) | |
| Distance | [pc] | 794.16 (21) | 788.39 (14) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 1.793 (0.05) | 1.77 (0.02) | |
| Proper motion (declination) | [mas/yr] | -7.531 (0.05) | -7.407 (0.03) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 14.30 (0.05) | |||
| V magnitude | 14.52 (0.07) | |||
| R magnitude | 14.91 (0.1) | |||
| I magnitude | ||||
| J magnitude | 15.02 (0.04) | 15.02 (0.04) | ||
| H magnitude | 15.26 (0.09) | 15.26 (0.09) | ||
| K magnitude | 14.94 (0.1) | 14.94 (0.1) | ||
| u magnitude | 14.32 (0.004) | 14.32 (0.004) | ||
| g magnitude | 14.32 (0.003) | 14.31 (0.04) | ||
| r magnitude | 14.88 (0.008) | 14.74 (0.04) | ||
| i magnitude | 15.07 (0.004) | 15.07 (0.004) | ||
| z magnitude | 15.31 (0.006) | 15.31 (0.006) | ||
| G magnitude | 14.51 (0.0004) | 14.50 (0.003) | ||
| BP magnitude | 14.34 (0.006) | |||
| RP magnitude | 14.71 (0.002) | |||
| Pan g magnitude | 14.32 (0.002) | |||
| Pan r magnitude | 14.72 (0.003) | |||
| Pan i magnitude | 15.06 (0.003) | |||
| Pan z magnitude | 15.31 (0.002) | |||
| Pan y magnitude | 15.47 (0.006) | |||
| E(B-V) | 0.041 | |||
* 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.