| Identification Data |
| Common Name | Alula Australis |
| Constellation | Ursa Major |
| Star Name | 53xi UMa |
| Skymap Number | 11180026 |
| Henry Draper (HD) Number | 98230 |
| Harvard Revised (HR) Number | 4375 |
| SAO Number | 62484 |
| Durchmusterung (DM) Number | BD+32 2132 |
Washington Double Stars (WDS) Number
| 11182+3132
|
| Positional Data |
| Position and Proper Motion (PPM) Number | 400161 |
| Right Ascension (RA) J2000 | 11h 18m 10.949s |
| Declination (Dec) J2000 | +31° 31' 45.61" |
| Position Uncertainty | 0.76s |
| Proper Motion in RA (J2000)/cos(Dec) | -0.0336 |
| Proper Motion in Dec (J2000) | -0.587 25 |
| Radial Velocity | -016.km s-1 |
| Trigonometric Parallax | 0.137s |
| Trigonometric Parallax Uncertainty | 0.014s |
| GCI Unit Vector in X (J2000) | -0.838223 |
| GCI Unit Vector in Y (J2000) | 0.154665 |
| GCI Unit Vector in Z (J2000) | 0.522935 |
| Galactic Longitude | 195.09° |
Galactic Latitude
| 69.25°
|
| Observational Data |
| Observed Visual Magnitude (V) | 3.79 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.018 |
| Observed B Magnitude | 4.38 |
| Observed B-V Colour | +0.59 |
| Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.005 |
| Observed U Magnitude | 4.42 |
| Observed U-B Colour | +0.04 |
| Observed U Magnitude or (U-B) Magnitude Uncertainty | 0.009 |
| Observed Photovisual Magnitude | 4.4 |
| Observed Photographic Magnitude | 5.0 |
| Morgan Keenan (MK) Spectral Type | F8.5V+G2V |
| One-Dimensional Spectral Class | G0 |
| Position Angle | |
| Year of Observation | 1994. AD |
Printer Version