All names: PHL 120, Gaia DR2 6817905341360668928, GALEXJ21444-2146, Gaia DR3 6817905341360668928, 2MASS J21442560-2146300, GALEX J214425.4-214630, EC 21416-2200, TIC 25137423, UCAC4 342-197184, UCAC2 23271984
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 21 44 25.47 | 21 44 25.60 (0.04) | ||
| Declination | -21 46 30.23 | -21 46 29.96 (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] | 0.26 (0.06) | 0.29 (0.05) | |
| Distance | [pc] | 3897.12 (963) | 3443.53 (545) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -3.685 (0.1) | -3.801 (0.05) | |
| Proper motion (declination) | [mas/yr] | -7.821 (0.1) | -7.902 (0.04) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 14.39 (0.01) | |||
| V magnitude | 14.51 (0.02) | |||
| R magnitude | 14.85 (0.07) | |||
| I magnitude | ||||
| J magnitude | 15.06 (0.04) | 15.06 (0.04) | ||
| H magnitude | 15.30 (0.09) | 15.30 (0.09) | ||
| K magnitude | 15.25 (0.1) | 15.25 (0.1) | ||
| u magnitude | ||||
| g magnitude | 14.35 (0.04) | |||
| r magnitude | 14.75 (0.03) | |||
| i magnitude | 14.98 (0.01) | |||
| z magnitude | ||||
| G magnitude | 14.54 (0.0006) | 14.52 (0.003) | ||
| BP magnitude | 14.34 (0.009) | |||
| RP magnitude | 14.79 (0.002) | |||
| Pan g magnitude | 14.37 (0.003) | |||
| Pan r magnitude | 14.78 (0.002) | |||
| Pan i magnitude | 15.13 (0.001) | |||
| Pan z magnitude | 15.40 (0.003) | |||
| Pan y magnitude | 15.57 (0.005) | |||
| E(B-V) | 0.024 | |||
* 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.