All names: UCAC2 2862763, TIC 355002205, GALEXJ08390-6534, 2MASS J08390322-6534380, WISE J083903.15-653437.7, GALEX J083903.2-653438, Gaia DR3 5273260000196736768, Gaia DR2 5273260000196736768, UCAC4 123-016705, WISEA J083903.14-653437.6
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 08 39 03.26 | 08 39 03.25 (0.02) | ||
| Declination | -65 34 38.35 | -65 34 38.03 (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] | 1.01 (0.03) | 1.06 (0.02) | |
| Distance | [pc] | 985.32 (28) | 944.47 (18) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -14.162 (0.06) | -14.178 (0.03) | |
| Proper motion (declination) | [mas/yr] | 15.629 (0.06) | 15.469 (0.02) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 14.13 (0.08) | |||
| V magnitude | 14.17 (0.02) | |||
| R magnitude | 14.49 (0.1) | |||
| I magnitude | ||||
| J magnitude | 14.48 (0.04) | 14.48 (0.04) | ||
| H magnitude | 14.63 (0.06) | 14.63 (0.06) | ||
| K magnitude | 14.37 (0.1) | 14.37 (0.1) | ||
| u magnitude | ||||
| g magnitude | 14.07 (0.04) | |||
| r magnitude | 14.35 (0.04) | |||
| i magnitude | 14.65 (0.08) | |||
| z magnitude | ||||
| G magnitude | 14.23 (0.0006) | 14.22 (0.003) | ||
| BP magnitude | 14.08 (0.006) | |||
| RP magnitude | 14.34 (0.006) | |||
| Pan g magnitude | ||||
| Pan r magnitude | ||||
| Pan i magnitude | ||||
| Pan z magnitude | ||||
| Pan y magnitude | ||||
| E(B-V) | 0.090 | |||
* 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.