All names: 2MASS J09162896+2439121, SDSS J091628.96+243912.2, UCAC4 574-044111, TIC 149368979, Gaia DR2 687691269876173056, Gaia DR3 687691269876173056, LAMOST J091628.95+243912.1, SDSSJ091628.96+243912.2, GALEX J091628.9+243911
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 09 16 28.96 | 09 16 28.96 (0.04) | ||
| Declination | 24 39 12.20 | 24 39 12.26 (0.04) | ||
| Spectral type | sdB+MS | sdB2He4+F/K | ||
| 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] | 0.37 (0.08) | 0.41 (0.04) | |
| Distance | [pc] | 2683.12 (567) | 2430.72 (252) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -0.665 (0.2) | -0.451 (0.05) | |
| Proper motion (declination) | [mas/yr] | -1.069 (0.2) | -1.108 (0.05) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 15.51 (0.05) | |||
| V magnitude | 15.49 (0.01) | |||
| R magnitude | 15.43 (0.3) | |||
| I magnitude | ||||
| J magnitude | 15.02 (0.04) | 15.02 (0.04) | ||
| H magnitude | 14.79 (0.07) | 14.79 (0.07) | ||
| K magnitude | 14.92 (0.1) | 14.92 (0.1) | ||
| u magnitude | 15.46 (0.004) | 15.46 (0.004) | ||
| g magnitude | 15.30 (0.003) | 15.43 (0.06) | ||
| r magnitude | 15.47 (0.003) | 15.58 (0.08) | ||
| i magnitude | 15.56 (0.004) | 15.75 (0.01) | ||
| z magnitude | 15.68 (0.006) | 15.68 (0.006) | ||
| G magnitude | 15.37 (0.0009) | 15.35 (0.003) | ||
| BP magnitude | 15.36 (0.006) | |||
| RP magnitude | 15.25 (0.003) | |||
| Pan g magnitude | 15.35 (0.004) | |||
| Pan r magnitude | 15.48 (0.003) | |||
| Pan i magnitude | 15.59 (0.002) | |||
| Pan z magnitude | 15.69 (0.003) | |||
| Pan y magnitude | 15.75 (0.008) | |||
| E(B-V) | 0.035 | |||
* 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.