All names: LAMOSTJ054423.26+381750.0, 2MASS J05442324+3817499, UCAC4 642-029477, PSO J086.0969+38.2971, LAMOST J054423.26+381750.0, Gaia DR2 189831438452843008, Gaia DR3 189831438452843008
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 05 44 23.26 | 05 44 23.26 (0.04) | ||
| Declination | 38 17 50.01 | 38 17 49.98 (0.03) | ||
| Spectral type | sdB | sdB | ||
| Effective temperature | [K] | 28200.0 (380) | ||
| log(g) | [cgs] | 5.16 (0.06) | ||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 0.55 (0.07) | 0.55 (0.04) | |
| Distance | [pc] | 1812.91 (225) | 1816.86 (147) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 2.184 (0.1) | 2.122 (0.05) | |
| Proper motion (declination) | [mas/yr] | -6.148 (0.09) | -6.212 (0.03) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | ||||
| V magnitude | ||||
| R magnitude | 16.26 (0.3) | |||
| I magnitude | ||||
| J magnitude | 16.08 (0.1) | 16.08 (0.1) | ||
| H magnitude | 15.93 (0.2) | 15.93 (0.2) | ||
| K magnitude | 15.89 (0.2) | 15.89 (0.2) | ||
| u magnitude | ||||
| g magnitude | 16.06 (0.004) | |||
| r magnitude | 16.15 (0.002) | |||
| i magnitude | 16.29 (0.006) | |||
| z magnitude | 16.43 (0.004) | |||
| G magnitude | 16.06 (0.001) | 16.03 (0.003) | ||
| BP magnitude | 16.04 (0.009) | |||
| RP magnitude | 15.94 (0.007) | |||
| Pan g magnitude | 16.06 (0.004) | |||
| Pan r magnitude | 16.15 (0.002) | |||
| Pan i magnitude | 16.29 (0.006) | |||
| Pan z magnitude | 16.43 (0.004) | |||
| Pan y magnitude | 16.49 (0.01) | |||
| E(B-V) | 0.404 | |||
* 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.