I'm successfully using APPM in the early evening to map 23 points or
so. I have to say, not having the autoguider makes everything so
much more reliable and fast. There's no need to "plate solve and
center" on a new target -- it's always center of the frame in SGP.
I'm also in a very forgiving system with a wide field and old
I'm sorry I didn't buy APCC Pro back when I had a discount offer
with a new 1100GTO. I didn't think it would serve any purpose when
I'm not in a fixed observatory. I was very wrong!
I've been shooting a Messier survey from home in Los Angeles County.
Not because my shots are interesting or especially good, but because
I can. :) Doing this has given me tons of experience with the entire
process from set up to final image processing, by repeating it
frequently. I've captured 47 Messier objects in the past two months,
about 30 minutes of imaging time on each, with an old one-shot color
I have two setups: My small system is a very old (first run) Mach1
GTO with an AP Traveler 105mm f/6. The big beast is an 1100GTO with
an AP 180EDT. I haven't been using the big one so often because
taking it down involves waking up my wife at 2:30 to come out and
help me lift it off the rings and stow it. She's been very willing
for the most part, but I save that for special occasions.
The Mach1 has a few enhancements, like the updated Alt-Az base, and
adapter for the RAPAS scope. I've upgraded the CP3 to the V2 chip,
so it works beautifully with APCC Pro. It does NOT have levers to
disengage the drives from the gears, so I'm not able to do a
delicate balance on the Mach1. But the system is light enough that
it doesn't seem to be critical.
Since I upgraded my CP3 controller chip, I've been running with PEC
Finally my question: This system is very forgiving, with a huge wide
field, and 2.45 arc-seconds per pixel. That's a little bit high
compared to the recommendations for recording a PE curve in PEMpro.
Should I bother?