When did the constellation Ursa major appear?

In spring, Ursa major is located in the east of meridian circle, occupying four directions in the visible sky: the middle, east, west and south.

In summer, Ursa major is located in the west of meridian circle, occupying the center, east, west and south of the visible sky.

In autumn, the constellation Ursa major is only partially visible, appearing at low altitude in the north.

In winter, only a small part of Ursa major is visible, appearing at low altitude in the north.