Xi Ursae Majoris
| Use attributes for filter ! | |
| Distance to Earth | 28. 7 light years |
|---|---|
| B−V color index | 0. 59 |
| U−B color index | 0. 04 |
| Companion | ξ UMa B |
| Radial velocity (Rv) | −18. 2 ± 2. 7 km/s |
| Parallax (π) | 113. 2 ± 4. 6 mas |
| Date of Reg. | |
| Date of Upd. | |
| ID | 2184248 |
About Xi Ursae Majoris
Xi Ursae Majoris, also named Alula Australis, is a star system in the constellation of Ursa Major. On May 2, 1780, Sir William Herschel discovered that this was a binary star system, making it the first such system ever discovered.
Xi Ursae Majoris Photos
