I got a relatively early start last night...for me. Started setting up around 9pm.....finally got a sequence underway about 10pm. Thought I would take another shot at M52-NGC 7635
(the Bubble Nebula). My last effort a couple of week s ago was plagued by a bright moon, haze and a short exposure time.....that data went into the recycle bin. Tonight, the sky was pretty decent......still the pesky haze that seems to be present every night, but I would rate the transparancy and seeing slightly above average.....and Yayyyy, no moon!
But, what is that high hugely bright object in the southeast? My old pal Jupiter. More about him later.
Guiding tonight was consistent but not terribly accurate. The Dec axis would run along the baseline like a champ, and then start a slow steady decline to slightly above or below the one pixel line.....then quickly go back to the baseline, and then start the slow decline again. The CG5 seems to perform a little different every night. I can't get a handle on it.
Still, I am not unhappy with the results. This is a much improved effort!
26 subs @ 5 minutes per sub (2 hours and 10 minutes) @ ISO 800
5 Darks, no Flats, no Bias
6" f/5 Newtonian, CG5 GT mount, Canon350D, ST 80mm guide scope, StarShoot II ccd guide camera
Nebulosity, Deep Sky Stacker, PHD guiding, Photo Shop CS
815 frames @ 15 FPS, with a shutter speed of 1/33 sec.
6" f/5 Newtonian, Philips ToUcam Pro II color vidcam
Moons: Europa to the left, Io to the right
It was close to 1:00am by this time, so I decided to see if I could get some video of Jupiter and it's moons. I just stuck my ToUcam in a 2" 2x barlow and shot a couple of quick video clips...the third one was washed out by clouds, that quickly covered the sky. By 1:30am the sky was almost 100% clouds.
I forgot my Newtonian has only half the focal length of my Maksutov, so a 2x barlow just wasn't enough to pick up anything but the major features......I did luck out by getting the Great Red Spot on this side of the planet. Seeing was good, but I need a 5x powermate for use with this scope......or another mount, so the Mak is ready to go. If I had taken time to switch scopes, it would have been too late.