
The Field Cannot Be Well Seen From Within The Field. The Astronomer Must Have His Diameter Of The Earth's Orbit As A Base To Fix The Parallax Of Any Other Star
Please Wait....
Translating....
Translating....
The Field Cannot Be Well Seen From
The Field Cannot Be Well Seen From Within The Field. The Astronomer Must Have His Diameter Of The Earth's Orbit As A Base To Fix The Parallax Of Any Other Star
Views: 16