All names: 2MASS J13082822-2009591, Gaia DR3 3505965143547709440, Gaia DR2 3505965143547709440, TIC 415825930, GALEX J130828.2-200958, EC 13057-1954, EC13057-1954
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 13 08 28.30 | 13 08 28.24 (0.04) | ||
| Declination | -20 09 59.52 | -20 09 58.93 (0.03) | ||
| 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] | 0.52 (0.06) | 0.46 (0.05) | |
| Distance | [pc] | 1913.14 (230) | 2196.84 (241) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -6.154 (0.1) | -6.139 (0.07) | |
| Proper motion (declination) | [mas/yr] | 0.779 (0.09) | 0.602 (0.04) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 15.43 | |||
| V magnitude | 15.64 | |||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 16.26 (0.1) | 16.26 (0.1) | ||
| H magnitude | 16.14 (0.2) | 16.14 (0.2) | ||
| K magnitude | 16.28 | |||
| u magnitude | ||||
| g magnitude | ||||
| r magnitude | ||||
| i magnitude | ||||
| z magnitude | ||||
| G magnitude | 15.67 (0.001) | 15.65 (0.003) | ||
| BP magnitude | 15.48 (0.008) | |||
| RP magnitude | 15.91 (0.004) | |||
| Pan g magnitude | 15.51 (0.005) | |||
| Pan r magnitude | 15.89 (0.004) | |||
| Pan i magnitude | 16.23 (0.004) | |||
| Pan z magnitude | 16.50 (0.003) | |||
| Pan y magnitude | 16.68 (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.