Observing the Sun The Thorrowgood is the only telescope which can be used to observe the Sun.
(Observing the Sun; is; the only telescope which can be used to observe the Sun) (the only telescope; can be used; to observe the Sun) (the only telescope; to observe; the Sun)
Observing the Sun the only telescope the only telescope
is can be used to observe
the only telescope which can be used to observe the Sun
to observe the Sun
the Sun