All names: SDSS J065256.41+120300.8, LAMOST J065256.40+120259.9, Gaia DR2 3351464724552173952, Gaia DR3 3351464724552173952, LAMOSTJ065256.40+120259.9
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 06 52 56.41 | 06 52 56.42 (0.09) | ||
| Declination | 12 02 59.99 | 12 03 00.82 (0.08) | ||
| Spectral type | He-sdO | sdOBHe | ||
| Effective temperature | [K] | 49075.0 (351) | ||
| log(g) | [cgs] | 5.82 (0.08) | ||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 0.12 (0.1) | 0.11 (0.08) | |
| Distance | [pc] | 8326.39 (8035) | 9099.18 (6648) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -1.764 (0.2) | -1.737 (0.1) | |
| Proper motion (declination) | [mas/yr] | -0.829 (0.2) | -0.853 (0.09) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | ||||
| V magnitude | ||||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | ||||
| H magnitude | ||||
| K magnitude | ||||
| u magnitude | 16.63 (0.007) | 16.63 (0.007) | ||
| g magnitude | 16.93 (0.004) | 16.95 (0.004) | ||
| r magnitude | 17.29 (0.005) | 17.31 (0.005) | ||
| i magnitude | 17.57 (0.007) | 17.58 (0.007) | ||
| z magnitude | 17.87 (0.02) | 17.87 (0.02) | ||
| G magnitude | 17.13 (0.002) | 17.11 (0.003) | ||
| BP magnitude | 16.95 (0.01) | |||
| RP magnitude | 17.28 (0.01) | |||
| Pan g magnitude | 17.02 (0.004) | |||
| Pan r magnitude | 17.33 (0.009) | |||
| Pan i magnitude | 17.64 (0.006) | |||
| Pan z magnitude | 17.84 (0.005) | |||
| Pan y magnitude | 17.99 (0.02) | |||
| E(B-V) | 0.176 | |||
* 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.