| Identification Data |
| Common Name | |
| Constellation | Ara |
| Star Name | bet Ara |
| Skymap Number | 17250046 |
| Henry Draper (HD) Number | 157244 |
| Harvard Revised (HR) Number | 6461 |
| SAO Number | 244725 |
| Durchmusterung (DM) Number | CP-55 8100 |
Washington Double Stars (WDS) Number
|
|
| Positional Data |
| Position and Proper Motion (PPM) Number | 345989 |
| Right Ascension (RA) J2000 | 17h 25m 17.988s |
| Declination (Dec) J2000 | -55° 31' 47.583" |
| Position Uncertainty | 0.0085s |
| Proper Motion in RA (J2000)/cos(Dec) | -0.00097 |
| Proper Motion in Dec (J2000) | -0.024766 |
| Radial Velocity | -000.4km s-1 |
| Trigonometric Parallax | +0.00541s |
| Trigonometric Parallax Uncertainty | 0.00076s |
| GCI Unit Vector in X (J2000) | -0.085366 |
| GCI Unit Vector in Y (J2000) | -0.559501 |
| GCI Unit Vector in Z (J2000) | -0.824422 |
| Galactic Longitude | 335.37° |
Galactic Latitude
| -11.01°
|
| Observational Data |
| Observed Visual Magnitude (V) | 2.82 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.002 |
| Observed B Magnitude | 4.30 |
| Observed B-V Colour | +1.478 |
| 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 | 2.8 |
| Observed Photographic Magnitude | |
| Morgan Keenan (MK) Spectral Type | K3Ib-IIa |
| One-Dimensional Spectral Class | K2 |
| Position Angle | |
| Year of Observation | AD |
Printer Version