| Identification Data |
| Common Name | |
| Constellation | Ara |
| Star Name | 1sig Ara |
| Skymap Number | 17350134 |
| Henry Draper (HD) Number | 159217 |
| Harvard Revised (HR) Number | 6537 |
| SAO Number | 228162 |
| Durchmusterung (DM) Number | CD-4611661 |
Washington Double Stars (WDS) Number
|
|
| Positional Data |
| Position and Proper Motion (PPM) Number | 323154 |
| Right Ascension (RA) J2000 | 17h 35m 39.590s |
| Declination (Dec) J2000 | -46° 30' 20.462" |
| Position Uncertainty | 0.0088s |
| Proper Motion in RA (J2000)/cos(Dec) | -0.00243 |
| Proper Motion in Dec (J2000) | -0.038366 |
| Radial Velocity | +004.3km s-1 |
| Trigonometric Parallax | +0.00846s |
| Trigonometric Parallax Uncertainty | 0.00072s |
| GCI Unit Vector in X (J2000) | -0.072961 |
| GCI Unit Vector in Y (J2000) | -0.684405 |
| GCI Unit Vector in Z (J2000) | -0.725443 |
| Galactic Longitude | 343.99° |
Galactic Latitude
| -7.58°
|
| Observational Data |
| Observed Visual Magnitude (V) | 4.58 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.002 |
| Observed B Magnitude | 4.56 |
| Observed B-V Colour | -0.021 |
| Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.003 |
| Observed U Magnitude | |
| Observed U-B Colour | |
| Observed U Magnitude or (U-B) Magnitude Uncertainty | |
| Observed Photovisual Magnitude | 4.5 |
| Observed Photographic Magnitude | 4.6 |
| Morgan Keenan (MK) Spectral Type | A0V |
| One-Dimensional Spectral Class | A0 |
| Position Angle | |
| Year of Observation | AD |
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