All names: 2MASS J08161867-1344540, TIC 307388551, WISEA J081618.67-134453.9, GALEXJ08163-1344, Gaia DR3 5726390422998372480, WISE J081618.68-134453.9, Gaia DR2 5726390422998372480, UCAC4 382-047186, UCAC2 26871470, GALEX J081618.6-134453
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 08 16 18.69 | 08 16 18.68 (0.03) | ||
| Declination | -13 44 52.90 | -13 44 54.04 (0.02) | ||
| Spectral type | sdB | sdB | ||
| 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] | 0.74 (0.04) | 0.80 (0.04) | |
| Distance | [pc] | 1346.62 (79) | 1246.11 (57) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -10.297 (0.07) | -10.39 (0.04) | |
| Proper motion (declination) | [mas/yr] | 4.156 (0.06) | 4.063 (0.04) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 14.02 (0.07) | |||
| V magnitude | 14.15 (0.03) | |||
| R magnitude | 14.39 (0.1) | |||
| I magnitude | ||||
| J magnitude | 14.70 (0.04) | 14.70 (0.04) | ||
| H magnitude | 14.84 (0.09) | 14.84 (0.09) | ||
| K magnitude | 14.81 (0.1) | 14.81 (0.1) | ||
| u magnitude | ||||
| g magnitude | 13.97 (0.02) | |||
| r magnitude | 14.37 (0.07) | |||
| i magnitude | 14.69 (0.04) | |||
| z magnitude | ||||
| G magnitude | 14.11 (0.0006) | 14.09 (0.003) | ||
| BP magnitude | 13.90 (0.006) | |||
| RP magnitude | 14.35 (0.001) | |||
| Pan g magnitude | 13.97 (0.003) | |||
| Pan r magnitude | 14.35 (0.004) | |||
| Pan i magnitude | 14.70 (0.002) | |||
| Pan z magnitude | 14.95 (0.004) | |||
| Pan y magnitude | 15.13 (0.004) | |||
| E(B-V) | 0.062 | |||
* 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.