All names: NSV 24315, LSE 234, 2MASS J18131583-6455168, LSE234, TIC 365430919, EXO 1808.3-6456, GALEX J181316.1-645518, Gaia DR2 6629536425178621568, uvby98 610260234, Gaia DR3 6629536425178621568, GSC 09063-01610, CPD-64 3829, ALS 19021
| 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.