All names: SDSS J213316.41-005438.7, SDSSJ213316.41-005438.7, GALEX J213316.4-005437, Gaia DR2 2686840315273137920, Gaia DR3 2686840315273137920
| Parameter | Unit | Geier 2020 | Simbad |
|---|---|---|---|
| Right ascension | 21 33 16.42 | 21 33 16.41 (0.1) | |
| Declination | -00 54 38.74 | -00 54 38.72 (0.07) | |
| Spectral type | sd | ||
| 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] | -0.02 (0.2) | 0.00 (0.1) |
| Distance | [pc] | 1428571.43 (242040816) | |
| Composition | |||
| Proper motion (right ascension) | [mas/yr] | 3.702 (0.2) | 3.329 (0.1) |
| Proper motion (declination) | [mas/yr] | -2.487 (0.2) | -2.284 (0.08) |
| Variability | |||
| Magnetic | |||
| Bd | [MG] | ||
| Infrared excess (disk) | |||
| Binarity | |||
| B magnitude | |||
| V magnitude | |||
| R magnitude | |||
| I magnitude | |||
| J magnitude | |||
| H magnitude | |||
| K magnitude | |||
| u magnitude | 17.62 (0.02) | ||
| g magnitude | 17.34 (0.03) | ||
| r magnitude | 17.63 (0.01) | ||
| i magnitude | 17.86 (0.01) | ||
| z magnitude | 18.05 (0.03) | ||
| G magnitude | 17.49 (0.002) | 17.46 (0.003) | |
| BP magnitude | 17.41 (0.02) | ||
| RP magnitude | 17.52 (0.03) | ||
| Pan g magnitude | 17.36 (0.006) | ||
| Pan r magnitude | 17.65 (0.003) | ||
| Pan i magnitude | 17.92 (0.005) | ||
| Pan z magnitude | 18.11 (0.01) | ||
| Pan y magnitude | 18.25 (0.01) | ||
| 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.