All names: LAMOST J184134.31+411536.1, Gaia DR3 2110657846788700288, WISE J184134.30+411535.8, Gaia DR2 2110657846788700288, 2MASS J18413430+4115359, UCAC4 657-066324, LAMOST J184134.30+411535.9, LAMOSTJ184134.30+411535.9
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 18 41 34.31 | 18 41 34.31 (0.02) | ||
| Declination | 41 15 35.96 | 41 15 35.95 (0.02) | ||
| Spectral type | He-sdB | sdB/sdO | ||
| Effective temperature | [K] | 26672.0 (101) | ||
| log(g) | [cgs] | 4.89 (0) | ||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 0.79 (0.04) | 0.74 (0.02) | |
| Distance | [pc] | 1268.39 (64) | 1343.00 (43) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -1.185 (0.07) | -1.257 (0.03) | |
| Proper motion (declination) | [mas/yr] | -3.785 (0.06) | -3.716 (0.03) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 13.01 (0.09) | |||
| V magnitude | 13.14 (0.04) | |||
| R magnitude | 13.35 (0.05) | |||
| I magnitude | ||||
| J magnitude | 13.59 (0.03) | 13.59 (0.03) | ||
| H magnitude | 13.66 (0.03) | 13.66 (0.03) | ||
| K magnitude | 13.72 (0.05) | 13.72 (0.05) | ||
| u magnitude | 13.28 (0.003) | |||
| g magnitude | 14.93 (0.01) | 12.98 (0.03) | ||
| r magnitude | 14.67 (0.01) | 13.36 (0.08) | ||
| i magnitude | 15.96 (0.01) | 13.55 (0.05) | ||
| z magnitude | 13.98 (0.004) | |||
| G magnitude | 13.16 (0.0007) | 13.15 (0.003) | ||
| BP magnitude | 13.01 (0.005) | |||
| RP magnitude | 13.32 (0.002) | |||
| Pan g magnitude | 13.24 | |||
| Pan r magnitude | 13.34 (0.001) | |||
| Pan i magnitude | 13.69 (0.003) | |||
| Pan z magnitude | 13.90 (0.001) | |||
| Pan y magnitude | 14.05 (0.003) | |||
| E(B-V) | 0.047 | |||
* 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.