giovedì 12 settembre 2013
giovedì 5 settembre 2013
Experiments with planetary nebulae
Last session of this fantastic three nights campaign. I managed to shot a faint on edge galaxy and experimented a bit with two small planetary nebulae...
Quite honestly I didn't know how to approach them because before I only had worked with two very brilliant PN (Ring and Dumbbell). I tried several exposure discovering that over 10 secs the frames were overexposed. So I shooted 30 10secs frames of each, but when composed in DSS the result was a bright disk with no details. Here attached you find single 10 secs images.
Quite honestly I didn't know how to approach them because before I only had worked with two very brilliant PN (Ring and Dumbbell). I tried several exposure discovering that over 10 secs the frames were overexposed. So I shooted 30 10secs frames of each, but when composed in DSS the result was a bright disk with no details. Here attached you find single 10 secs images.
NGC891
Canon at the prime focus of C8 (tracking not guided)
160x60 sec frames , 50 dark , ISO 800
stacked with DSS and elaborated with Gimp
NGC7662 - Blue Snowball Nebula
Canon at the prime focus of C8 (tracking not guided)
10 sec single frame, ISO 800
NGC6543 - Cat Eye Nebula
Canon at the prime focus of C8 (tracking not guided)
10 sec single frame, ISO 800
mercoledì 4 settembre 2013
Yet another nice night
Clear sky continues... God chance to take a couple of pictures. The Triangulum Galaxy M33 that came out of the eastern tree in my garden at midnight and the nice open cluster M52. Here they are:
M33 - Triangulum Galaxy
Canon at the prime focus of C8 (tracking not guided)
68x60 sec frames , 50 dark , ISO 800
stacked with DSS and elaborated with Gimp
M52 - Open Cluster
Canon at the prime focus of C8 (tracking not guided)
17x60 sec frames , 10 dark , ISO 800
stacked with DSS and elaborated with Gimp
martedì 3 settembre 2013
A beautiful night
September 2th 2013, what a memorable night! Perfect seeing: it was easily to distingish, by naked eye, many details in the Milky Way. I pointed my C8 towrds the center of the Andromeda Galaxy obtaining these images of the galactic nucleus:
M31 - Andromeda galactic nucleus
Canon at the prime focus of C8 (tracking not guided)
160x30 sec frames , 50 dark , ISO 800
stacked with DSS and elaborated with Gimp
M31 - Andromeda galactic nucleus
Canon at the prime focus of C8 (tracking not guided)
160x30 sec + 40x60 sec frames (tot 2h expo) , 50 dark , ISO 800
stacked with DSS and elaborated with Gimp
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