All names: GALEXJ21417-2144, GALEX J214146.9-214400, 2MASS J21414680-2144013, EC 21389-2157, Gaia EDR3 6817590399998925440, TIC 326328277, UCAC4 342-197082, Gaia DR2 6817590399998925440, PHL 101, Gaia DR3 6817590399998925440
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 21 41 46.83 (0.04) | 21 41 46.91 | 21 41 46.81 (0.04) | ||
| Declination | -21 44 01.57 (0.03) | -21 44 00.08 | -21 44 01.42 (0.03) | ||
| Spectral type | sdO | sdB | |||
| Effective temperature | [K] | ||||
| log(g) | [cgs] | ||||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 0.70 (0.05) | 0.57 (0.09) | 0.70 (0.05) | |
| Distance | [pc] | 1425.92 (97) | 1746.42 (284) | 1425.92 (97) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | 19.685 (0.05) | 19.733 (0.1) | 19.685 (0.05) | |
| Proper motion (declination) | [mas/yr] | -9.74 (0.04) | -9.951 (0.1) | -9.74 (0.04) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 14.47 (0.01) | ||||
| V magnitude | 14.73 (0.03) | ||||
| R magnitude | 15.36 (0.04) | ||||
| I magnitude | |||||
| J magnitude | 15.45 (0.06) | 15.45 (0.06) | |||
| H magnitude | 15.48 (0.1) | 15.48 (0.1) | |||
| K magnitude | 15.46 | ||||
| u magnitude | |||||
| g magnitude | 14.48 (0.03) | ||||
| r magnitude | 14.95 (0.03) | ||||
| i magnitude | 15.35 (0.1) | ||||
| z magnitude | |||||
| G magnitude | 14.66 (0.003) | 14.68 (0.001) | 14.66 (0.003) | ||
| BP magnitude | 14.50 (0.003) | 14.44 (0.01) | |||
| RP magnitude | 14.96 (0.004) | 14.96 (0.003) | |||
| Pan g magnitude | 14.50 (0.002) | ||||
| Pan r magnitude | 14.95 (0.003) | ||||
| Pan i magnitude | 15.30 (0.003) | ||||
| Pan z magnitude | 15.58 (0.005) | ||||
| Pan y magnitude | 15.76 (0.006) | ||||
| E(B-V) | 0.025 | ||||
* 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.