All names: UCAC4 344-006161, 2MASS J04521083-2113164, Gaia DR3 2974175452738279424, EC 04500-2118, GALEX J045210.8-211315, TIC 121709933, Gaia DR2 2974175452738279424, EC04500-2118
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 04 52 10.80 | 04 52 10.83 (0.03) | ||
| Declination | -21 13 16.14 | -21 13 16.42 (0.04) | ||
| 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] | 0.23 (0.07) | 0.24 (0.05) | |
| Distance | [pc] | 4291.85 (1240) | 4226.54 (875) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 7.028 (0.09) | 6.979 (0.04) | |
| Proper motion (declination) | [mas/yr] | -15.761 (0.1) | -15.906 (0.04) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 16.25 (0.04) | |||
| V magnitude | 16.52 (0.01) | |||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 16.87 (0.1) | 16.87 (0.1) | ||
| H magnitude | 17.80 | |||
| K magnitude | 15.22 | |||
| u magnitude | ||||
| g magnitude | ||||
| r magnitude | ||||
| i magnitude | ||||
| z magnitude | ||||
| G magnitude | 16.40 (0.001) | 16.37 (0.003) | ||
| BP magnitude | 16.17 (0.008) | |||
| RP magnitude | 16.65 (0.006) | |||
| Pan g magnitude | ||||
| Pan r magnitude | ||||
| Pan i magnitude | ||||
| Pan z magnitude | 17.61 (0.2) | |||
| Pan y magnitude | ||||
| E(B-V) | 0.020 | |||
* 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.