| Identification Data |
| Common Name | Kaus Australis |
| Constellation | Saggitarius |
| Star Name | 20eps Sgr |
| Skymap Number | 18240035 |
| Henry Draper (HD) Number | 169022 |
| Harvard Revised (HR) Number | 6879 |
| SAO Number | 210091 |
| Durchmusterung (DM) Number | CD-3412784 |
Washington Double Stars (WDS) Number
| 18241-3424
|
| Positional Data |
| Position and Proper Motion (PPM) Number | 297655 |
| Right Ascension (RA) J2000 | 18h 24m 10.318s |
| Declination (Dec) J2000 | -34° 23' 4.618" |
| Position Uncertainty | 0.0096s |
| Proper Motion in RA (J2000)/cos(Dec) | -0.00320 |
| Proper Motion in Dec (J2000) | -0.124166 |
| Radial Velocity | -015.0km s-1 |
| Trigonometric Parallax | +0.02255s |
| Trigonometric Parallax Uncertainty | 0.00102s |
| GCI Unit Vector in X (J2000) | 0.086880 |
| GCI Unit Vector in Y (J2000) | -0.820679 |
| GCI Unit Vector in Z (J2000) | -0.564745 |
| Galactic Longitude | 359.20° |
Galactic Latitude
| -9.81°
|
| Observational Data |
| Observed Visual Magnitude (V) | 1.81 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.007 |
| Observed B Magnitude | 1.83 |
| Observed B-V Colour | +0.018 |
| Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.009 |
| Observed U Magnitude | |
| Observed U-B Colour | |
| Observed U Magnitude or (U-B) Magnitude Uncertainty | |
| Observed Photovisual Magnitude | 2.0 |
| Observed Photographic Magnitude | 2.0 |
| Morgan Keenan (MK) Spectral Type | B9.5III |
| One-Dimensional Spectral Class | A0 |
| Position Angle | 302 |
| Year of Observation | 1930. AD |
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