All names: TIC 383942426, 2MASS J15581706-7937198, DENIS J155817.0-793720, GALEX J155816.9-793719, Gaia DR2 5778358294628396928, WISE J155817.10-793719.9, GALEXJ15582-7937, Gaia DR3 5778358294628396928, UCAC4 052-017415, WISEA J155817.07-793719.9, UCAC2 353487
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 15 58 16.91 | 15 58 17.08 (0.02) | ||
| Declination | -79 37 19.65 | -79 37 19.93 (0.02) | ||
| Spectral type | He-sdO | sdOHe | ||
| 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] | 0.21 (0.03) | 0.23 (0.02) | |
| Distance | [pc] | 4714.76 (694) | 4409.17 (453) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -4.26 (0.05) | -4.27 (0.02) | |
| Proper motion (declination) | [mas/yr] | -3.957 (0.05) | -3.849 (0.03) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 14.31 (0.01) | |||
| V magnitude | 14.38 (0.06) | |||
| R magnitude | 14.72 (0.1) | |||
| I magnitude | 14.44 (0.03) | |||
| J magnitude | 14.64 (0.03) | 14.64 (0.03) | ||
| H magnitude | 14.71 (0.05) | 14.71 (0.05) | ||
| K magnitude | 14.77 (0.1) | 14.77 (0.1) | ||
| u magnitude | ||||
| g magnitude | 14.28 (0.01) | |||
| r magnitude | 14.51 (0.01) | |||
| i magnitude | 14.78 (0.01) | |||
| z magnitude | ||||
| G magnitude | 14.34 (0.0005) | 14.32 (0.003) | ||
| BP magnitude | 14.23 (0.009) | |||
| RP magnitude | 14.42 (0.002) | |||
| Pan g magnitude | ||||
| Pan r magnitude | ||||
| Pan i magnitude | ||||
| Pan z magnitude | ||||
| Pan y magnitude | ||||
| E(B-V) | 0.166 | |||
* 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.