| Identification Data |
| Common Name | |
| Constellation | Circinus |
| Star Name | alp Cir |
| Skymap Number | 14420079 |
| Henry Draper (HD) Number | 128898 |
| Harvard Revised (HR) Number | 5463 |
| SAO Number | 252853 |
| Durchmusterung (DM) Number | CP-64 2977 |
Washington Double Stars (WDS) Number
| 14425-6459
|
| Positional Data |
| Position and Proper Motion (PPM) Number | 360934 |
| Right Ascension (RA) J2000 | 14h 42m 30.419s |
| Declination (Dec) J2000 | -64° 58' 30.499" |
| Position Uncertainty | 0.0055s |
| Proper Motion in RA (J2000)/cos(Dec) | -0.03036 |
| Proper Motion in Dec (J2000) | -0.234166 |
| Radial Velocity | +007.2km s-1 |
| Trigonometric Parallax | +0.06097s |
| Trigonometric Parallax Uncertainty | 0.00058s |
| GCI Unit Vector in X (J2000) | -0.321052 |
| GCI Unit Vector in Y (J2000) | -0.275435 |
| GCI Unit Vector in Z (J2000) | -0.906124 |
| Galactic Longitude | 314.34° |
Galactic Latitude
| -4.59°
|
| Observational Data |
| Observed Visual Magnitude (V) | 3.18 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.002 |
| Observed B Magnitude | 3.45 |
| Observed B-V Colour | +0.269 |
| 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 | 3.4 |
| Observed Photographic Magnitude | 3.7 |
| Morgan Keenan (MK) Spectral Type | ApSrEuCr: |
| One-Dimensional Spectral Class | F0 |
| Position Angle | 227 |
| Year of Observation | 1990. AD |
