4x600 seconds Intes MK-69 (6" f/6 Mak-Cass 900mm fl) Celestron CI-700 Mount w/Gemini QHY8 -- John N. Gretchen III N5JNG NCS304 ...

3x600 seconds Intes MK-69 (6" f/6 Mak-Cass 900mm fl) Celestron CI-700 Mount w/Gemini QHY8 reduced 50% -- John N. Gretchen III N5JNG NCS304 ...

3x600 seconds Intes MK-69 (6" f/6 Mak-Cass 900mm fl) Celestron CI-700 Mount w/Gemini QHY8 -- John N. Gretchen III N5JNG NCS304 ...

3x600 seconds Intes MK-69 (6" f/6 Mak-Cass 900mm fl) Celestron CI-700 Mount w/Gemini QHY8 CCD Camera B343(LDN 880) is the dark nebula on the right side of the...

no, I am not making sulfuric acid.... this is S2HaO3 instead of H2SO4 g The stars were terribly elongated in the sulfur channel, which was acquired while...

The same nights of super seeing that I imaged the gravitational arcs created by Abell 2218 I also imaged this guy. When the galaxy cluster got too low and...

this is only 5 x 20 minutes of Halpha at f/12.6 (5760mm) from the 18" cass and the Proline 9K I had queued up 12 exposures that night but I must have had a...

IC 417 aka SH2-234 and LBN 804 is sometimes known as The Spider with nearby NGC 1931 being the Fly. The wavy "silk thread" on the left points to where the...

Been a long night, but well worth it. These are the 2 best results from about 25 sequences. I hope to have a gif in a few days.

From my back yard 28 miles south of Washington, DC. 10inch LX200 at F/10. One 1/50 second exposure with a Canon 40D at 400ASA.

10x300 seconds Intes MK-69 (6" f/6 Mak-Cass 900mm fl) Celestron CI-700 Mount w/Gemini reduced 50% -- John N. Gretchen III http://www.tisd.net/~jng3

I recently tried using DeepSkyStacker with my Canon 40D DSLR files. It took 15.5 minutes just to register and stack three 16 bit TIF files. I tried using RAW...

60x60seconds Intes-Micro M73 (7" F3 custom astrograph) Celestron CI-700 Mount w/Gemini QHY8 ccd camera cropped and reduced...

Moderated sci.astro.amateur (www.moderatedsciastroamateur.org) now has a new category named, "Superior Images from a.p.b.a." Some of the recently submitted...

NGC 2366 is a much ignored, dwarf galaxy, in the M81 group. Why it doesn't get more attention from amateur astro imagers I don't understand. While it is a...

Arp 28 sits in a rather empty part of the sky. It is in Arp's class: Spiral Galaxies: One heavy arm. In some cases I've had trouble seeing which arm Arp...

After posting what I consider a really pretty open cluster, NGC 7128 here is one of Arp's least photogenic catalog entries. Big and bright its not! You'll...

I took some frames for this image in three nights, but due to clouds, dew etc only the data from one night was usable. Taken from the middle of Berlin with a...