Prime focus tour (2)
|
|
Palomar Observatory: Prime focus tour (2) |
Riding the elevator to the top of the parked telescope.
![[audio]](speaker.gif){kind=small}
"When the telescope was built, an observer had to ride throughout the
night in the prime focus cage to ensure accurate tracking of the
telescope. The astronomer ascended to the cage, eighty feet above the
floor, in a specially designed elevator."
| Go to: |
 Public site |
 Page 1 |
 Page 3 |