This is one of my favorite planetaries so I have been wanting to shoot it for some time. I had tracking problems so I was only able to save 10 out of 18...

Hi, With the jet stream overhead last night I was still able to get 25 minutes of data. The guide star was all over the place and the stars are a bit bloated...

Returning temporarily to Arp galaxies. This is classified in Arp's list as an integral sign galaxy. Actually it is two galaxies in the process of...

12x600 seconds Intes MK-69 (6" f/6 Mak-Cass 900mm fl) Celestron CI-700 Mount w/Gemini QHY8 CCD Camera reduced to 50% -- John N. Gretchen III ...

5x300 seconds Intes MK-69 (6" f/6 Mak-Cass 900mm fl) Celestron CI-700 Mount w/Gemini QHY8 CCD Camera cropped and reduced to 50% Planetary nebula NGC6842 near...

Described in the NGC catalog as 6 or 7 stars involved in nebulosity it doesn't sound all that interesting. Visually it wasn't according to my viewing log. ...

here's a link http://www.narrowbandimaging.com/dwb111_mk1sn2_pl9k_baader_halpha_page.htm

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

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.

this is my first attempt at a mosaic.... (2x)3x20 minutes Intes MK-69 (6" f/6 Mak-Cass 900mm fl) Celestron CI-700 Mount w/Gemini QHY8 CCD Camera cropped &...

2x20 minutes Intes MK-69 (6" f/6 Mak-Cass 900mm fl) Celestron CI-700 Mount w/Gemini QHY8 CCD Camera reduced 50% -- John N. Gretchen III ...

A rather small trio of reflection nebula in Vulpecula. Notice the clean edge of the shock front in the middle nebula. I only found rather vague distance...

9x20 minutes Intes MK-69 (6" f/6 Mak-Cass 900mm fl) Celestron CI-700 Mount w/Gemini QHY8 CCD Camera reduced 50% had some field rotation to deal with, I'll have...

I came home when it was already dark last thursday , so I didn't have the time to think about an object to image for too long. NGC 6888 is a good fit for my...

2.66 hours Intes MK-69 (6" f/6 Mak-Cass 900mm fl) Celestron CI-700 Mount w/Gemini QHY8 CCD Camera cropped & reduced 50% John N. Gretchen III ...

Taken from my backyard in castro valley ca, using the 18" at f/12.6 (5760mm) and the Proline 9000 with a Baader Halpha filter (50 x 50 mm sq)

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...