All names: LAMOSTJ004139.06+420713.5, SDSS J004139.05+420713.5, Gaia DR3 381370731998505472, GALEX J004139.0+420712, Gaia DR2 381370731998505472, LAMOST J004139.06+420713.5, Gaia EDR3 381370731998505472
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 00 41 39.06 (0.05) | 00 41 39.06 | 00 41 39.05 (0.05) | ||
| Declination | 42 07 13.54 (0.04) | 42 07 13.53 | 42 07 13.58 (0.04) | ||
| Spectral type | sdOB | sdB/sdO | |||
| Effective temperature | [K] | 36447.0 (283) | |||
| log(g) | [cgs] | 5.98 (0.05) | |||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 0.40 (0.07) | 0.44 (0.1) | 0.40 (0.07) | |
| Distance | [pc] | 2497.50 (409) | 2286.24 (597) | 2497.50 (409) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | 9.013 (0.06) | 8.951 (0.2) | 9.013 (0.06) | |
| Proper motion (declination) | [mas/yr] | -2.889 (0.05) | -2.919 (0.2) | -2.889 (0.05) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | |||||
| V magnitude | |||||
| R magnitude | |||||
| I magnitude | |||||
| J magnitude | |||||
| H magnitude | |||||
| K magnitude | |||||
| u magnitude | 15.99 (0.005) | 16.00 (0.005) | |||
| g magnitude | 16.31 (0.004) | 16.32 (0.004) | |||
| r magnitude | 16.80 (0.005) | 16.79 (0.005) | |||
| i magnitude | 17.13 (0.006) | 17.14 (0.006) | |||
| z magnitude | 17.41 (0.01) | 17.43 (0.01) | |||
| G magnitude | 16.57 (0.003) | 16.60 (0.002) | 16.57 (0.003) | ||
| BP magnitude | 16.44 (0.004) | 16.38 (0.008) | |||
| RP magnitude | 16.85 (0.008) | 16.83 (0.007) | |||
| Pan g magnitude | 16.41 (0.002) | ||||
| Pan r magnitude | 16.81 (0.003) | ||||
| Pan i magnitude | 17.17 (0.005) | ||||
| Pan z magnitude | 17.44 (0.006) | ||||
| Pan y magnitude | 17.61 (0.008) | ||||
| E(B-V) | 0.053 | ||||
* 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.