All names: UCAC4 139-191934, GALEX J234709.4-621828, Gaia EDR3 6487737869443089536, GALEXJ23471-6218, 2MASS J23470960-6218274, Gaia DR2 6487737869443089536, Gaia DR3 6487737869443089536, TIC 350273432, EC 23444-6235
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 23 47 09.64 (0.03) | 23 47 09.48 | 23 47 09.61 (0.03) | ||
| Declination | -62 18 27.48 (0.03) | -62 18 28.64 | -62 18 27.44 (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] | 0.88 (0.03) | 0.91 (0.05) | 0.88 (0.03) | |
| Distance | [pc] | 1132.25 (42) | 1093.61 (56) | 1132.25 (42) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | 12.045 (0.03) | 12.124 (0.07) | 12.045 (0.03) | |
| Proper motion (declination) | [mas/yr] | -2.457 (0.03) | -2.474 (0.07) | -2.457 (0.03) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 14.57 (0.02) | ||||
| V magnitude | 14.77 (0.03) | ||||
| R magnitude | 15.34 (0.2) | ||||
| I magnitude | |||||
| J magnitude | 15.38 (0.05) | 15.38 (0.05) | |||
| H magnitude | 15.36 (0.1) | 15.36 (0.1) | |||
| K magnitude | 15.42 (0.2) | 15.42 (0.2) | |||
| u magnitude | |||||
| g magnitude | 14.58 (0.02) | ||||
| r magnitude | 15.09 (0.04) | ||||
| i magnitude | 15.49 (0.01) | ||||
| z magnitude | |||||
| G magnitude | 14.78 (0.003) | 14.80 (0.0006) | 14.78 (0.003) | ||
| BP magnitude | 14.64 (0.003) | 14.59 (0.007) | |||
| RP magnitude | 15.05 (0.004) | 15.05 (0.002) | |||
| Pan g magnitude | |||||
| Pan r magnitude | |||||
| Pan i magnitude | |||||
| Pan z magnitude | |||||
| Pan y magnitude | |||||
| E(B-V) | 0.011 | ||||
* 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.