All names: Gaia DR2 1797986937760585600, LAMOST J214106.76+252829.9, UCAC4 578-126919, TIC 248045551, LAMOSTJ214106.76+252829.9, 2MASS J21410677+2528300, Gaia DR3 1797986937760585600, WISE J214106.76+252829.9, GALEX J214106.6+252832, WISEA J214106.76+252829.8
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 21 41 06.76 | 21 41 06.77 (0.03) | ||
| Declination | 25 28 29.94 | 25 28 30.01 (0.03) | ||
| Spectral type | He-sdO | sdOBHe | ||
| Effective temperature | [K] | 45775.0 (169) | ||
| log(g) | [cgs] | 6.12 (0.04) | ||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 0.91 (0.04) | 0.92 (0.03) | |
| Distance | [pc] | 1098.42 (49) | 1086.25 (40) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -13.854 (0.07) | -14.044 (0.04) | |
| Proper motion (declination) | [mas/yr] | -16.286 (0.07) | -16.494 (0.04) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 13.89 (0.01) | |||
| V magnitude | 14.05 (0.01) | |||
| R magnitude | 14.47 (0.09) | |||
| I magnitude | ||||
| J magnitude | 14.74 (0.04) | 14.74 (0.04) | ||
| H magnitude | 14.91 (0.08) | 14.91 (0.08) | ||
| K magnitude | 14.98 (0.2) | 14.98 (0.2) | ||
| u magnitude | ||||
| g magnitude | 13.88 (0.01) | |||
| r magnitude | 14.37 (0.01) | |||
| i magnitude | ||||
| z magnitude | ||||
| G magnitude | 14.11 (0.0006) | 14.10 (0.003) | ||
| BP magnitude | 13.92 (0.009) | |||
| RP magnitude | 14.36 (0.002) | |||
| Pan g magnitude | 13.95 (0.003) | |||
| Pan r magnitude | 14.35 (0.003) | |||
| Pan i magnitude | 14.70 (0.003) | |||
| Pan z magnitude | 14.96 (0.002) | |||
| Pan y magnitude | 15.14 (0.005) | |||
| E(B-V) | 0.073 | |||
* 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.