All names: TIC 120610731, GALEX J002033.5-363644, MCT 0018-3653, 2MASS J00203351-3636444, Gaia DR2 4998930822570014976, MCT0018-3653, Gaia DR3 4998930822570014976, UCAC4 267-000370
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 00 20 33.52 | 00 20 33.51 (0.04) | ||
| Declination | -36 36 44.52 | -36 36 44.60 (0.03) | ||
| Spectral type | sdB | sdBHe0 | ||
| 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] | 0.22 (0.07) | 0.25 (0.05) | |
| Distance | [pc] | 4625.35 (1395) | 4046.94 (835) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -4.566 (0.1) | -4.644 (0.04) | |
| Proper motion (declination) | [mas/yr] | -16.161 (0.07) | -16.373 (0.06) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 15.54 (0.07) | |||
| V magnitude | 15.81 (0.03) | |||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 15.99 (0.09) | 15.99 (0.09) | ||
| H magnitude | 16.09 (0.2) | 16.09 (0.2) | ||
| K magnitude | 16.38 | |||
| u magnitude | ||||
| g magnitude | ||||
| r magnitude | ||||
| i magnitude | 16.27 (0.01) | |||
| z magnitude | ||||
| G magnitude | 15.78 (0.0009) | 15.77 (0.003) | ||
| BP magnitude | 15.58 (0.008) | |||
| RP magnitude | 16.00 (0.004) | |||
| Pan g magnitude | ||||
| Pan r magnitude | ||||
| Pan i magnitude | ||||
| Pan z magnitude | ||||
| Pan y magnitude | ||||
| E(B-V) | 0.006 | |||
* 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.