All names: 2MASS J02571174-7252540, UCAC2 1083350, [DI91] 1388, TIC 426030266, UCAC4 086-006922, EC02571-7304, IDK B005, Gaia DR3 4640919700444153088, EC 02571-7304, Gaia DR2 4640919700444153088
| Parameter | Unit | Geier 2020 | Simbad |
|---|---|---|---|
| Right ascension | 02 57 11.86 | 02 57 11.83 (0.02) | |
| Declination | -72 52 54.37 | -72 52 54.18 (0.02) | |
| Spectral type | sdB+F | sdB+F | |
| 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] | -0.11 (0.04) | |
| Distance | [pc] | ||
| Composition | |||
| Proper motion (right ascension) | [mas/yr] | 1.833 (0.07) | 1.851 (0.03) |
| Proper motion (declination) | [mas/yr] | -0.895 (0.07) | -0.812 (0.03) |
| Variability | |||
| Magnetic | |||
| Bd | [MG] | ||
| Infrared excess (disk) | |||
| Binarity | |||
| B magnitude | 14.09 (0.01) | ||
| V magnitude | 14.30 (0.01) | ||
| R magnitude | 14.55 (0.2) | ||
| I magnitude | |||
| J magnitude | 14.93 (0.05) | 14.93 (0.05) | |
| H magnitude | 15.15 (0.1) | 15.15 (0.1) | |
| K magnitude | 15.05 (0.1) | 15.05 (0.1) | |
| u magnitude | |||
| g magnitude | 14.06 (0.01) | ||
| r magnitude | 14.53 (0.01) | ||
| i magnitude | |||
| z magnitude | |||
| G magnitude | 14.29 (0.001) | 14.28 (0.003) | |
| BP magnitude | 14.10 (0.009) | ||
| RP magnitude | 14.54 (0.004) | ||
| Pan g magnitude | |||
| Pan r magnitude | |||
| Pan i magnitude | |||
| Pan z magnitude | |||
| Pan y magnitude | |||
| E(B-V) | |||
* 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.