Sunday, 27 September 2009

The MTV-73S85HP-EX-SW-R colour deep-sky Mintron and an f/4.8 10" Newtonian

An MTV-73S85HP-EX-SW-R colour deep-sky Helix Mintron with a 0.5 focal reducer and an IR cut filter was placed at the Prime focus of a 10" f/4.8 Newtonian.

The video stream was recorded in HQ on DVD. The frames were extracted dircetly from DVD and 281 frames were used (the best 90%) by Deep Sky Stacker to produce the image. A 75% scaled dark frame was used.

This is the image of Caldwell 27 (The Crescent Nebula) obtained.

Caldwell 33, (The Eastern Veil Nebula) was revealed nicely when the best 90% of 176 frames were stacked in Deep-Sky Stacker using a 75% scaled dark-frame.

This image of M82 was derived from the best 95% of 176 frames stacked in Deep Sky Stacker with a 75% scaled dark-frame subtraction.

This image of M13 was derived from 300 frames registered in Deep Sky Stacker and corrected with a scaled dark-frame

The colour balance and levels were adjusted in The Gimp.

Take a look at my eBook on Observing and Imaging the Sun with modest equipment

Dont forget to click on 'Older Posts' or 'Newer posts' below or browse the 'blog archive' on the left, or click on 2009 to see all of the posts for this year on one page.