All names: Gaia DR2 3496979934525510016, TIC 9279365, 2MASS J12433095-2525563, GALEX J124330.9-252555, EC 12408-2509, Gaia DR3 3496979934525510016, EC12408-2509
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 12 43 30.94 | 12 43 30.96 (0.04) | ||
| Declination | -25 25 56.31 | -25 25 56.05 (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] | 0.83 (0.08) | 0.65 (0.05) | |
| Distance | [pc] | 1199.62 (114) | 1527.18 (125) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -8.15 (0.1) | -8.148 (0.06) | |
| Proper motion (declination) | [mas/yr] | 0.151 (0.1) | -0.236 (0.04) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 15.54 | |||
| V magnitude | 15.66 | |||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 15.75 (0.08) | 15.75 (0.08) | ||
| H magnitude | 15.64 (0.1) | 15.64 (0.1) | ||
| K magnitude | 15.65 (0.3) | 15.65 (0.3) | ||
| u magnitude | ||||
| g magnitude | ||||
| r magnitude | ||||
| i magnitude | ||||
| z magnitude | ||||
| G magnitude | 15.66 (0.0007) | 15.64 (0.003) | ||
| BP magnitude | 15.53 (0.006) | |||
| RP magnitude | 15.77 (0.004) | |||
| Pan g magnitude | 15.53 (0.005) | |||
| Pan r magnitude | 15.87 (0.004) | |||
| Pan i magnitude | 16.12 (0.002) | |||
| Pan z magnitude | 16.30 (0.005) | |||
| Pan y magnitude | 16.41 (0.006) | |||
| E(B-V) | 0.059 | |||
* 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.