Cor Caroli- COR CAROLI (Alpha Canum Venaticorum). Third magnitude (2.81, nearly second) and easy to find, the star’s importance is consistent with its brightness.
- Ecliptic (Wikipedia)
The ecliptic or ecliptic plane is the orbital plane of Earth around the Sun. From the perspective of an observer on Earth, the Sun’s movement around the celestial sphere over the course of a year traces out a path along the ecliptic against the background of stars. The ecliptic is an important reference plane and is the basis of the ecliptic coordinate system.