All names: DENIS J183231.7-474437, 2MASS J18323180-4744378, GALEXJ18325-4744, Gaia DR3 6705178908161092352, Gaia EDR3 6705175914566354048, WISE J183231.80-474438.0, TIC 91316983, Gaia DR2 6705178908161092352, WISEA J183231.80-474438.1, UCAC4 212-171427, UCAC2 11428998, GALEX J183231.7-474435
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 18 32 36.27 (0.9) | 18 32 31.76 | 18 32 31.80 (0.03) | ||
| Declination | -47 45 35.26 (0.9) | -47 44 35.82 | -47 44 37.85 (0.04) | ||
| Spectral type | He-sdOB | sdOC9VIIHe38 | |||
| 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] | 1.44 (1) | 1.01 (0.07) | 1.13 (0.05) | |
| Distance | [pc] | 695.12 (538) | 992.85 (67) | 881.83 (37) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | -6.452 (1) | -0.8 (0.09) | -0.587 (0.04) | |
| Proper motion (declination) | [mas/yr] | -10.541 (0.8) | -16.94 (0.09) | -16.909 (0.04) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 13.26 (0.02) | ||||
| V magnitude | 13.47 (0.01) | ||||
| R magnitude | |||||
| I magnitude | 13.72 (0.03) | ||||
| J magnitude | 14.17 (0.03) | 14.17 (0.03) | |||
| H magnitude | 14.24 (0.04) | 14.24 (0.04) | |||
| K magnitude | 14.24 (0.08) | 14.24 (0.08) | |||
| u magnitude | |||||
| g magnitude | 13.29 (0.01) | ||||
| r magnitude | 13.77 (0.05) | ||||
| i magnitude | 14.06 (0.03) | ||||
| z magnitude | |||||
| G magnitude | 20.64 (0.01) | 13.46 (0.001) | 13.44 (0.003) | ||
| BP magnitude | 20.93 (0.1) | 13.21 (0.02) | |||
| RP magnitude | 20.10 (0.1) | 13.72 (0.002) | |||
| Pan g magnitude | |||||
| Pan r magnitude | |||||
| Pan i magnitude | |||||
| Pan z magnitude | |||||
| Pan y magnitude | |||||
| E(B-V) | 0.059 | ||||
* 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.