All names: Gaia DR2 950627174872167808, Gaia DR3 950627174872167808, FBS B 40, TIC 21291968, WISE J065243.57+401737.4, 2MASS J06524357+4017377, WISEA J065243.57+401737.3, UCAC4 652-043475, LAMOST J065243.57+401737.6, LAMOSTJ065243.57+401737.6, FBS 0649+403
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 06 52 43.58 | 06 52 43.58 (0.03) | ||
| Declination | 40 17 37.70 | 40 17 37.75 (0.03) | ||
| Spectral type | He-sdO | sdOHe | ||
| Effective temperature | [K] | 65576.0 (644) | ||
| log(g) | [cgs] | 5.74 (0.02) | ||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 0.56 (0.05) | 0.61 (0.04) | |
| Distance | [pc] | 1793.72 (157) | 1642.31 (101) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 2.516 (0.08) | 2.642 (0.04) | |
| Proper motion (declination) | [mas/yr] | -3.991 (0.07) | -4.005 (0.03) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 13.96 (0.02) | |||
| V magnitude | 14.20 (0.04) | |||
| R magnitude | 14.54 (0.2) | |||
| I magnitude | ||||
| J magnitude | 14.72 (0.04) | 14.72 (0.04) | ||
| H magnitude | 14.90 (0.07) | 14.90 (0.07) | ||
| K magnitude | 14.92 (0.1) | 14.92 (0.1) | ||
| u magnitude | ||||
| g magnitude | 14.00 (0.03) | |||
| r magnitude | 14.37 (0.06) | |||
| i magnitude | 14.73 (0.04) | |||
| z magnitude | ||||
| G magnitude | 14.13 (0.001) | 14.11 (0.003) | ||
| BP magnitude | 13.88 (0.009) | |||
| RP magnitude | 14.37 (0.003) | |||
| Pan g magnitude | 13.99 (0.002) | |||
| Pan r magnitude | 14.37 (0.001) | |||
| Pan i magnitude | 14.71 (0.002) | |||
| Pan z magnitude | 14.98 (0.004) | |||
| Pan y magnitude | 15.17 (0.003) | |||
| E(B-V) | 0.089 | |||
* 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.