All names: Gaia DR2 6629536425178621568, TIC 365430919, CPD-64 3829, EXO 1808.3-6456, 2MASS J18131583-6455168, GALEX J181316.1-645518, Gaia DR3 6629536425178621568, LSE234, uvby98 610260234, LSE 234, ALS 19021, GSC 09063-01610, NSV 24315
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 18 13 15.73 | 18 13 15.85 (0.02) | ||
| Declination | -64 55 15.77 | -64 55 16.87 (0.03) | ||
| Spectral type | sdO | sdO | ||
| 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] | 1.72 (0.07) | 1.66 (0.05) | |
| Distance | [pc] | 582.41 (25) | 601.07 (16) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -5.252 (0.08) | -5.193 (0.03) | |
| Proper motion (declination) | [mas/yr] | -17.515 (0.09) | -17.65 (0.03) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | ||||
| V magnitude | 12.63 | |||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 13.29 (0.03) | 13.29 (0.03) | ||
| H magnitude | 13.49 (0.04) | 13.49 (0.04) | ||
| K magnitude | 13.66 (0.04) | 13.66 (0.04) | ||
| u magnitude | ||||
| g magnitude | ||||
| r magnitude | ||||
| i magnitude | ||||
| z magnitude | ||||
| G magnitude | 12.62 (0.0005) | 12.59 (0.003) | ||
| BP magnitude | 12.36 (0.007) | |||
| RP magnitude | 12.91 (0.002) | |||
| Pan g magnitude | ||||
| Pan r magnitude | ||||
| Pan i magnitude | ||||
| Pan z magnitude | ||||
| Pan y magnitude | ||||
| E(B-V) | 0.057 | |||
* 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.