I managed to get almost 2 hours of exposure when it was directly overhead. This time of year seems to have many galaxies but not much in the way of nebulae. That's fine with me. I have been taking 90 second exposures at ISO 1600 for the galaxies and that has been giving me good results.
This represents the 69th Messier Object I have imaged using a Canon 600D connected to an Orion ED80 f/7.5. I captured this object on Friday evening and since it cleared up the following evening I got a bonus and was able to capture M101.
Location: Happy Frog Observatory, Monroe, CT
Camera: Canon EOS Rebel T3i(a), Backyard EOS
Telescope: Orion ED80 80mm
f/7.5 Apochromatic Refractor Telescope
Focal Length: 600mm
Focal Reducer: Orion 0.8x Focal Reducer for Refractor Telescopes
Mount: Orion Sirius EQ-G GoTo Telescope Mount
Filter: Astrodon UV/IR
Autoguiding: QHY-5L-II-M attached to an Agena 50mm Guide Scope with Helical Focuser
Exposure: 77 x 90s
Temp: 5 C
Post Processing: Deep Sky Stacker, Photoshop, Lightroom, Gradient Exterminator, Astronomy Tools, StarTools.