Imaging Projects

In this blog, I will share the results of all of my imaging projects. The newest will be at the top and the oldest will be further down the stack. Going back in time here is interesting - some of my early stuff was pretty rough - but I did not see it that way at the time - I was thrilled to get anything back that looked like an image! Hopefully, you will see how my work has progressed with time!

SH2-119 The Clamshell Nebula (3.5 Hours in SHO) - An Unintended Image
Patrick A. Cosgrove Patrick A. Cosgrove

SH2-119 The Clamshell Nebula (3.5 Hours in SHO) - An Unintended Image

My second image of the year started as a disaster and motivated me to move to NINA. I spent a few nights learning NINA during the bright Moon cycle, knowing the subs would be a waste. Lo and behold, there was an image there!

This is SH2-119—The Clamshell Nebula—3.5 hours in SHO. Read the story of my trials and tribulations that led to this image!

Read More
IC 1848 - The Soul Nebula - 6.8 hours in SHO (and a Change in Horses Mid-Stride!)
Patrick A. Cosgrove Patrick A. Cosgrove

IC 1848 - The Soul Nebula - 6.8 hours in SHO (and a Change in Horses Mid-Stride!)

IC 1848, Better known as The Soul Nebula, is an emission nebula located 6,500 light-years away in the cancellation of Cassiopeia.

This image results from 6.8 hours of narrowband data collected with my Askar FRA400 Astrograph and my ZWO classic ASI1600MM-Pro camera on the nights of Oct 20 and 22 and Nov 23 of 2022.

The first two nights were collected using the IOPtron CEM26 mount, and the third night was collected using a brand new ZWO AM5 Harmonic mount. This was the first time using the AM5, and it did an exceptional job with tracking errors reduced by 400%!

Read More
NGC 281 - The Pacman Nebula - 8 hours in SHO (Fighting a Strange Artifact!)
Patrick A. Cosgrove Patrick A. Cosgrove

NGC 281 - The Pacman Nebula - 8 hours in SHO (Fighting a Strange Artifact!)

NGC 281, better known as the “Pacman” Nebula, is located 9,500 light-years away in the constellation of Cassiopea.

This was the second time I shot this target. This image is the result of 8 hours of narrowband data rendered in the Hubble SHO palette.

This data was collected on my Astro-Physics 130mm f/8.35 APO refractor, and a ZWO ASI2600MM-Pro camera - all mounted on my IOptron CEM 60 Mount.

This image suffered from a strange circular artifact that took the form of nested rings in the corner of the image. Dealing with this caused me to make my background sky a bit darker than I would have preferred, but I think the image has a certain amount of drama and pop because of it!

Read More
IC 1396A - The Elephant’s Trunk - 7.3 hrs in SHO (a Case of Virus Interuptus)
Patrick A. Cosgrove Patrick A. Cosgrove

IC 1396A - The Elephant’s Trunk - 7.3 hrs in SHO (a Case of Virus Interuptus)

IC 1396A - The Elephants Trunk Nebula is located 2400 light-years away in the constellation of Cepheus. This is my fourth project involving this target - but the first where I used the newer generation ZWO ASI26MM-Pro camera and full narrowband data set at this image scale. My goal here was to collect about 15 hours on target. I only ended up getting 7.3 hours. My usual reason for missing my integration target is weather. Not this time. This time I was hit with a nasty virus and the worst cold of my life! I had to watch two precious clear nights slip away whilst I coughed and hacked away inside in misery….

Read More
IC 2177 - The Seagull Nebula in SHO - with just 2 hours!
Gear Patrick A. Cosgrove Gear Patrick A. Cosgrove

IC 2177 - The Seagull Nebula in SHO - with just 2 hours!

IC 2177, better known as the Seagull Nebula, is a rich HII emission region located 3650 light-years away located new the borders of the constellations Canis Magor and Monoceros.

This image results from slightly over 2 hours of narrowband integration on my 400mm wide field scope. This short integration time results from bad weather and sky access limitations due to trees on my property.

Careful processing was able to produce a reasonable image despite the lack of integration time.

Read More
NGC 2359 - Thor’s Helmet in SHO ~only 2.5 hours!
Patrick A. Cosgrove Patrick A. Cosgrove

NGC 2359 - Thor’s Helmet in SHO ~only 2.5 hours!

NGC 2359 - Thor’s Helmet - is my first image of 2022. This image is the result of 2.5 hours of narrowband data - limited by weather and the fact that this target is very low in the sky for me and access is very limited each night due to trees on my property. I had hoped to gather more data but at this point, it is now too late in the year. So my challenge was to see what I could do with such limited data. detailed processing strategy and log provided!

Read More