All names: Gaia DR3 4947023428379802752, GALEX J023254.6-431025, SBC9 3417, 2MASS J02325468-4310277, Gaia EDR3 4947022599449514880, HE0230-4323, Gaia DR2 4947023428379802752, TIC 142200764, HE 0230-4323
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 02 33 00.08 (0.3) | 02 32 54.67 | 02 32 54.68 (0.04) | ||
| Declination | -43 11 08.26 (0.3) | -43 10 27.80 | -43 10 27.79 (0.05) | ||
| Spectral type | sdB+dM | sdB | |||
| Effective temperature | [K] | 31552.0 (500) | |||
| log(g) | [cgs] | 5.60 (0.05) | |||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 0.85 (0.4) | 1.07 (0.07) | 1.15 (0.06) | |
| Distance | [pc] | 1182.45 (542) | 931.19 (59) | 868.58 (44) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | 2.202 (0.3) | -6.687 (0.09) | -6.354 (0.05) | |
| Proper motion (declination) | [mas/yr] | -3.612 (0.4) | -6.425 (0.1) | -6.866 (0.06) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | |||||
| V magnitude | 13.78 | ||||
| R magnitude | |||||
| I magnitude | |||||
| J magnitude | 13.95 (0.03) | 13.95 (0.03) | |||
| H magnitude | 13.80 (0.04) | 13.80 (0.04) | |||
| K magnitude | 13.86 (0.07) | 13.86 (0.07) | |||
| u magnitude | |||||
| g magnitude | |||||
| r magnitude | |||||
| i magnitude | |||||
| z magnitude | |||||
| G magnitude | 20.06 (0.005) | 13.72 (0.002) | 13.72 (0.003) | ||
| BP magnitude | 20.25 (0.05) | 13.52 (0.008) | |||
| RP magnitude | 19.62 (0.06) | 13.90 (0.009) | |||
| Pan g magnitude | |||||
| Pan r magnitude | |||||
| Pan i magnitude | |||||
| Pan z magnitude | |||||
| Pan y magnitude | |||||
| E(B-V) | 0.010 | ||||
* 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.