I need to remember that I should shorten my exposure to no more than 30 seconds when shooting star clusters and maybe just an hour in length. I noticed some blotch spots on my image and am not sure where they are coming from. I haven't exposed the camera's sensor with out a cover, I am pretty sure my optics on the FLT 91 are clear of finger prints or blotches. Anyway I think I was able to remove them. I intend to image NGC1647 again but will try 20 to 30 second exposures, to see if I get more pinpoint stars.
I decided to purchase the Fast Track Pixinsight tutorial by Adam Block, hopefully I will learn and use Pixinsight fully. I am also thinking about purchasing his PixInsight Fundamentals course
NGC 1647 is an
open cluster in the constellation
Taurus. It contains nearly 90 stars and it lies at a distance of 550
parsec. It is visible even with
binoculars close to
Aldebaran. It was discovered by
William Herschel in 1784. It is located behind the Taurus dark nebula complex, approximately 160 parsec away. The brightest
main sequence stars are of spectral type B7. Its age is estimated to be 150 million years.
@information from Wikipedia
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