773 B
773 B
| name | constellation | created_by | created_date | updated_by | updated_date |
|---|---|---|---|---|---|
| Al Rischa (α Psc) | Psc | editor.cs | 2023-11-05 15:42:56.100713 | editor.cs | 2023-11-05 15:42:56.100717 |
From an astronomical point of view, Al Risch is a close binary star (total magnitude 4), with its pale blue components of magnitude 4.3 and 5.2 orbiting each other with a period of 933 years. Currently, they are separated by 1.5" in the sky, requiring a telescope with a 300 mm objective diameter to resolve them. Even at 200x magnification, they appear in close contact. However, due to their orbit, the separation decreases gradually each year, reaching its lowest value of 1" in 2060. The system is located at a distance of 130 light-years and both components are also a spectroscopic binary.