Cool so it looks like a Celestron PS1000 127mm f8 Newtonian reflector probably on a German Equitorial Mount GM1?
that means it will give great views of brighter objects (including Deep Space Objects) like moon major planets open clusters globular clusters (not good for galaxies though but nothing below 200mm is!)
Should also be easy on eyepieces
(you won’t need the expensive ones
)
below is a useful YouTube vid on collimating but they use a laser collimater rather than a much cheaper Cheshire (no laser just line of sight)
one point of warning though DONT EVER LOOK AT THE SUN it will burn your retinas out straight away!
Collimation
Set up your mount, put your scope, put your lowest magnification eyepiece in (bigger number) and have a play around