All names: Gaia DR3 6708871102566549632, UCAC2 12796086, GALEX J184627.7-445856, UCAC4 226-184247, DENIS J184627.6-445856, Gaia DR2 6708871102566549632, 2MASS J18462760-4458562, GALEXJ18464-4458, TIC 182012072
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 18 46 27.71 | 18 46 27.62 (0.04) | ||
| Declination | -44 58 56.95 | -44 58 56.18 (0.03) | ||
| Spectral type | He-sdO | sdOHe | ||
| 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] | 0.17 (0.05) | 0.30 (0.04) | |
| Distance | [pc] | 5995.20 (1844) | 3315.65 (451) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 3.833 (0.09) | 3.841 (0.04) | |
| Proper motion (declination) | [mas/yr] | -1.273 (0.08) | -1.066 (0.04) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 14.27 (0.02) | |||
| V magnitude | 14.89 (0.01) | |||
| R magnitude | 14.82 (0.04) | |||
| I magnitude | 14.74 (0.04) | |||
| J magnitude | 15.14 (0.05) | 15.14 (0.05) | ||
| H magnitude | 15.35 (0.1) | 15.35 (0.1) | ||
| K magnitude | 15.56 (0.2) | 15.56 (0.2) | ||
| u magnitude | ||||
| g magnitude | ||||
| r magnitude | ||||
| i magnitude | ||||
| z magnitude | ||||
| G magnitude | 14.48 (0.001) | 14.46 (0.003) | ||
| BP magnitude | 14.23 (0.01) | |||
| RP magnitude | 14.74 (0.003) | |||
| Pan g magnitude | ||||
| Pan r magnitude | ||||
| Pan i magnitude | ||||
| Pan z magnitude | ||||
| Pan y magnitude | ||||
| E(B-V) | 0.061 | |||
* 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.