All names: 2MASS J05250866+1757135, UCAC4 540-015151, LAMOSTJ052508.76+175713.7, Gaia DR2 3400347392320018176, Gaia DR3 3400347392320018176, LAMOST J052508.76+175713.7, WISE J052508.68+175714.0
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 05 25 08.77 | 05 25 08.66 (0.04) | ||
| Declination | 17 57 13.71 | 17 57 13.83 (0.03) | ||
| Spectral type | sdB | sdOB | ||
| Effective temperature | [K] | 34810.0 (540) | ||
| log(g) | [cgs] | 5.68 (0.09) | ||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 0.89 (0.09) | 0.95 (0.05) | |
| Distance | [pc] | 1127.78 (109) | 1051.19 (53) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 3.326 (0.1) | 3.335 (0.05) | |
| Proper motion (declination) | [mas/yr] | 4.565 (0.09) | 4.636 (0.04) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 15.75 (0.03) | |||
| V magnitude | 15.66 (0.07) | |||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 15.56 (0.06) | 15.56 (0.06) | ||
| H magnitude | 15.66 (0.1) | 15.66 (0.1) | ||
| K magnitude | 14.82 | |||
| u magnitude | 15.63 (0.006) | |||
| g magnitude | 15.58 (0.004) | 15.62 (0.04) | ||
| r magnitude | 15.76 (0.004) | 15.79 (0.01) | ||
| i magnitude | 15.94 (0.005) | 15.88 (0.2) | ||
| z magnitude | 16.13 (0.008) | |||
| G magnitude | 15.67 (0.001) | 15.65 (0.003) | ||
| BP magnitude | 15.61 (0.006) | |||
| RP magnitude | 15.56 (0.008) | |||
| Pan g magnitude | 15.62 (0.002) | |||
| Pan r magnitude | 15.76 (0.002) | |||
| Pan i magnitude | 15.94 (0.004) | |||
| Pan z magnitude | 16.10 (0.003) | |||
| Pan y magnitude | 16.22 (0.006) | |||
| E(B-V) | 0.259 | |||
* 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.