Tìm kiếm
Secpar
01
a unit of astronomical length based on the distance from Earth at which stellar parallax is 1 second of arc; equivalent to 3.262 light years
Ví dụ
Từ Gần
Tải Ứng Dụng
Download Mobile App
Tìm kiếm
a unit of astronomical length based on the distance from Earth at which stellar parallax is 1 second of arc; equivalent to 3.262 light years