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!

NGC 7822 - The Central Portion of the Question Mark Nebula (~14 hours in SHOrgb)
Patrick A. Cosgrove Patrick A. Cosgrove

NGC 7822 - The Central Portion of the Question Mark Nebula (~14 hours in SHOrgb)

NGC 7822 is the Clamshell Nebula - located 2900 light years away in the constellation of Cepheus. This is a very large target, and with my smallest scope, I could still only fit the central portion of this complex area into the camera's field of view. This image results from just under 14 hours of integration and consists of a mix of narrowband data for the nebula and broadband RGB data for the stars.

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SH2-82 - The Little Cocoon Nebula - 7.3 Hours in LRGB
Patrick A. Cosgrove Patrick A. Cosgrove

SH2-82 - The Little Cocoon Nebula - 7.3 Hours in LRGB

My first image of the year - and my first image from my new home after the move!

This is SH2-82—The Little Cocoon Nebula—7.3 hours in LRGB. Located ~4,000 light-years away in the constellation Sagitta, this emission/reflection nebula is in a rich region of the sky with a multitude of stars and dark dust lanes.

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SH2-132 - A Reprocess of The Lion Nebula in SHO (8.33 hours)
Patrick A. Cosgrove Patrick A. Cosgrove

SH2-132 - A Reprocess of The Lion Nebula in SHO (8.33 hours)

This is an Image Reprocessing Project for SH2-132, also known as The Lion Nebula - whose data was originally collected in September of 2021.

The Lion Nebula is a rich HII region with star clusters, emission nebulae, and dark dust regions. Located in the southern portion of the constellation Cepheus, the Lion Nebula is roughly 10,00 light-years away in the Perseus Arm of the Milky Way Galaxy. This is a very faint and challenging target.

This image was taken on the Askar FRA400 Platform with 8.33 hours of exposure in narrowband.

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NGC 6888 - A Reprocess of The Crescent Nebula ~11 hours in HOOrgb
Patrick A. Cosgrove Patrick A. Cosgrove

NGC 6888 - A Reprocess of The Crescent Nebula ~11 hours in HOOrgb

NGC 6888 - The Crescent Nebula is a famous emission nebula located in the constellation of Cygnus. This is a reprocessing project using image data first captured in September 2022.

SInce. I have no new data to process due to the wildfire smoke, I decided to use some new tools and processes to see if i could pull more details out from the O3 shell that surrounds the nebula.

THe resulting image show much more O3 detail - including some interesting convection cells towards the bottom of the nebula

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Messier 27 - A Reprocess of My Dumbbell Nebula Data in SHO - (10.25 Hours)
Patrick A. Cosgrove Patrick A. Cosgrove

Messier 27 - A Reprocess of My Dumbbell Nebula Data in SHO - (10.25 Hours)

This imaging project is not a recapture of data for M27 - the Dumbell Nebula. Rather it is an effort to reprocess old data using new tools and new processing methods to address some concerns I had about the original image - where I thought that the stars were bloated and unsharp, and that I thought I should be able to bring out more detail in the amazing outer gas shells that narrowband imaging shows for this target.

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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%!

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Melotte 15 - The Heart of the Heart Nebula (IC 1805) - 5.5 hours of SHO
Patrick A. Cosgrove Patrick A. Cosgrove

Melotte 15 - The Heart of the Heart Nebula (IC 1805) - 5.5 hours of SHO

Melotte 15, better known as the “Heart of the Heart,” is an open cluster with emission and reflection nebulae that creates an interesting structure that can be found in the center of IC 1805 - the Heart Nebula.

This rich region is located about 7,100 light-years from Earth in the constellation of Cassiopea.

This is image is the result of 5.5 hours of narrowband data collected on my William Optics 132mm FLT platform using a ZWO ASI1600MM-Prop camera.

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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….

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SH2-114 -The Flying Dragon Nebula - a VERY Faint Challenge Target - 17.5 hours HSSrgb
Patrick A. Cosgrove Patrick A. Cosgrove

SH2-114 -The Flying Dragon Nebula - a VERY Faint Challenge Target - 17.5 hours HSSrgb

SH2-114 - The Flying Dragon Nebula - is an extremely faint emission nebula found in Cygnus. This has proven to be a challenging target. Primarily shot as a Bi-Color Narrowband Ha/S2 image, I found it was very hard to see the nebula in a single 5-minute sub! I ended up going back to capture more data over 8 nights in total spanning two moonless cycles. I also collects RBG data so that I could replace the stars with natural color RGB stars. two moonless cycles of the moon to capture data over 8 nights. I ended up with a total of 17.5 hours - my longest integration to date! And still it was a challenge to process this image!

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Messier 57 - The Ring Nebula - 14.7 hours in LHaRGB - Capturing the Outer Ring!
Patrick A. Cosgrove Patrick A. Cosgrove

Messier 57 - The Ring Nebula - 14.7 hours in LHaRGB - Capturing the Outer Ring!

Messier 57, the Ring Nebula has long been a visual favorite of mine. It is also a target that I have shot two times before with poor results due to its small size. This time I wanted to try to do the best job I could, given the limitations of my current gear. I also wanted to get a really long integration. Finally, I wanted to add Ha data in an attempt to capture the red outer gas rings that are not seen visually and often not seen in the typical amateur images. While I ran into problems on the way, did pretty well in meeting my goals. See the full post for the entire story!

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Messier 106 Region - 5.7 hours LRGB
Patrick A. Cosgrove Patrick A. Cosgrove

Messier 106 Region - 5.7 hours LRGB

Messier 106 is a galaxy in Canes Venatici, located 20-25 million light-years away.

Galaxy Season is challenging time to find targets when you are dealing with a widefield telescope. I finally decided to image the region around M106 as it contains a host smaller galaxies.

This is a 5.6 hour integration in LRGB using my Askar FRA400 Astrograph and the ZWO ASI1600MM-Pro camera.

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NGC 5907/5906 - The Splinter Galaxy - 8 hrs in LRGB
Patrick A. Cosgrove Patrick A. Cosgrove

NGC 5907/5906 - The Splinter Galaxy - 8 hrs in LRGB

NGC 5907 -The Splinter Galaxy - is another example of an edge-on Spiral galaxy that displays significant dust lane detail across its middle. Its located 54.5 million Light years away in the constellation of Draco. This was shot with my Astro-Physics 130mm with the ASI2600MM-Pro camera. 8 hours of integration in LRGB. It was a real challenge to pull out the details from this very small galaxy.

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M101 - The Pinwheel Galaxy in LHaRGB (11 hours)- a third attempt!
Patrick A. Cosgrove Patrick A. Cosgrove

M101 - The Pinwheel Galaxy in LHaRGB (11 hours)- a third attempt!

My third attempt shooting Messier 101 - the Pinwheel Galaxy. My first was in 2020 using an OSC camera and a two-hour exposure. Not bad for a first attempt. My second was in 2021 using an ASI1600MM-Prop mono camera. 15-hour integration! However many data problems and a very poor final results. This time around I am using my Astro-Physics 130mm with the ASI2600MM-Pro camera. 11 hours of integration in LHaRGB.

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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!

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NGC 7293, The Helix Nebula  ~4.5 hours of LHaRGB: Dealing with “Bad Data”
Patrick A. Cosgrove Patrick A. Cosgrove

NGC 7293, The Helix Nebula ~4.5 hours of LHaRGB: Dealing with “Bad Data”

This was my second attempt to capture NGC 7293 - the Helix Nebula - located in the constellation of Aquarius. This time I had high expectations as I was using longer integration times, a longer focal length scope, and a new generation ASI2600MMPro camera. However - LOTS of things went wrong with this capture and its data came out pretty compromised! Some intense image processing minimized the impact of these problems - but the final image falls far short of my expectations. A good example of what can go wrong!

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IC 1396/1396A - The Elephant's Trunk Nebula
Patrick A. Cosgrove Patrick A. Cosgrove

IC 1396/1396A - The Elephant's Trunk Nebula

IC 1396, also known as The Elephant Trunk Nebula is rich region emission nebulae and dark dust regions. Located in the constellation Cepheus, the Lion Nebula is roughly 2400 light-years away.

This image was taken on the Askar FRA400 Platform with only 3 hours of exposure in narrowband - and was the first image where the FRA was used for portable operations on a trip to North Carolina.

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SH2-132 The Lion Nebula in SHO (8.33 hours)
Patrick A. Cosgrove Patrick A. Cosgrove

SH2-132 The Lion Nebula in SHO (8.33 hours)

SH2-132, also known as The Lion Nebula, is a rich HII region with star clusters, emission nebulae, and dark dust regions. Located in the southern portion of the constellation Cepheus, the Lion Nebula is roughly 10,00 light-years away in the Perseus Arm of the MilkyWay Galaxy. This is a very faint and challenging target.

This image was taken on the Askar FRA400 Platform with 8.33 hours of exposure in narrowband,

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SH2-101 - The Tulip Nebula - 12.8 Hours in SHO
Patrick A. Cosgrove Patrick A. Cosgrove

SH2-101 - The Tulip Nebula - 12.8 Hours in SHO

Sharpless 101 (specifically Sh2-101) is also known as the Tulip Nebula and is located approximately 6000 light-years away in the constellation of Cygnus (The Swan). Steven Sharpless first cataloged this rich H II emission region in 1959 in his second catalog of nebulae. Early photographic images of this area resembled a flower, and this gave rise to its common name.

This was a 12.8-hour integration with the AP130 platform using the ZWO ASI2600MM-Pro Camera.

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Messier 94 - The Croc’s Eye Galaxy in LRGB
Patrick A. Cosgrove Patrick A. Cosgrove

Messier 94 - The Croc’s Eye Galaxy in LRGB

Messier 94 is also known as NGC 4736 and has at least two common names: "The Cat' Eye Galaxy" and "The Croc's Eye Galaxy", with the later of which seems more popular this days. This galaxy is located 16 Million Light Years away in the Constellation Canes Venatici (The Hunting Dogs). Shot over two evenings in last June of 2021 using my William Optics 132 FLT Plafrform and the ASI1600M-Pro Mono Camera.

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