What telescopic (or binocular) views have been most unforgettable for you? I'll start off as follows.
The first time I saw a globular cluster resolved into stars.
My first view of the Orion Nebula through a big (10") scope.
M11, every time I look at it.
The Andromeda Galaxy through 100mm binoculars from a really dark site.
A glimpse of the jet emerging from M87.
Comet Holmes shortly after it erupted.
Comet Garradd and M71 in the same field in a 100-degree eyepiece.
The first time I saw a globular cluster resolved into stars.
My first view of the Orion Nebula through a big (10") scope.
M11, every time I look at it.
The Andromeda Galaxy through 100mm binoculars from a really dark site.
A glimpse of the jet emerging from M87.
Comet Holmes shortly after it erupted.
Comet Garradd and M71 in the same field in a 100-degree eyepiece.