So, ive got a question regarding seeing big objects, like galaxies or nebulas, to see them with a telescope do i need to be able to notice them with my eyes? (I.E. I can see orions nebula and the pleiades very well, but i can see little smudges on the sky with my eyes.) So, for example, given that Andromeda's Galaxy is supposedly 3 times the size of the moon on the sky, and with dark enough nights its visible to the naked eye; to be able to see with a telescope (whatever aperture it has) do i need to be able to notice anything on that spot on the sky with my eyes? Or i can aim at that "blank" spot in the sky and with enough aperture will i be able to see it?
I can see a lots of bright stars on the sky every other day, i use 15x70mm binoculars; looking into one bright star and i can see hundreds of stars; so i dont think the light pollution is that bad in my area (unless it actually is and since its all ive known, i know no better).
So, question is, do telescopes allow me to see better what im already seeing? (i need to be able to "see" the nebula through "light polution" to see it on the telescope)
or do telescope allow me to see things my eyes cant catch? (a 130mm Aperture Telescope will show me more objects and details than a 70mm Aperture one)
Thanks in advance!