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Old 06-11-2015, 01:24 PM
willik (Willik)
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Join Date: Nov 2009
Location: Perth WA
Posts: 717
Willik

Quote:
Originally Posted by TRX View Post
unguided 7x 15sec frames iso800 Canon6D +MPCC, 10" f4 reflector on AZ-EQ6 mount. Stacked in Nebulosity and finished in Lightroom.

Given that the subs were only test shots early in the night i am happy at my first nebula image!

I had setup the scope early evening to get some shots of M42 high in the sky and hoping to get my first ever look at Jupiter at around 4am as it rose. Unfortunately clouds rolled in while i was in bed.

This image was 7 tracking/focus test shots of Orion at ~930 when it was only a few degrees above the horizon and barely visible to the naked eye through the light pollution of Perth to the east.

This was also the first time i had tried to properly polar align the scope, and managed anything longer than 2 seconds before trails started.

Because these were test shots i never took any dark frames, and i need to sort out some bad vignetting. A bit noisy as it was only a few frames that probably not long enough exposure.

any tips for next time apart from;

-no clouds
-longer exposure (i need better alignment for this, stars are just starting to smudge@15 sec)
-how long an exposure is practical before you need a guide scope?
-dark & bias frames
-more subs?

its all a fun learning process

But as a first try on a nebula - I'm pretty happy as I've only managed to image Saturn before this via video and registax.
IF you need some help in Astro imaging I live south of Perth I will be going out to take the horse head nebular in a couple of weeks the helix I took is on this site.You can email me if your interested.I will be out with another fellow Astro imager.email martinwilliams1953@yahoo.com.au
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