Copeland's Septet (KuriousGeorge)

Celestial hemisphere: Northern · Constellation: Leo (Leo) · Contains: Copeland's Septet · NGC 3745 · NGC 3746 · NGC 3748 · NGC 3750 · NGC 3751 · NGC 3753 · NGC 3754

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Copeland's Septet

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Copeland's Septet

With the Julian skies still a bit unsteady with variable clouds, I decided to swap the FLI PL16803 CCD with the ASI6200MM Pro CMOS. The latter allows me to move from 15 minute to 1 minute subs to help find "holes" to the universe.

Here I collected 290 1-minute L subs between 1.6" and 2.8". I then kept the best 180 (3 hours) with an average FWHM closer to 2". The 5-minute color subs were all under 3". Although I was hoping to get 6+ hours of sub 2" L for this distant object, I was pleasantly surprised with the deconvolved results. (-:

I used the NOIRLab image as a reference...

https://noirlab.edu/public/images/noirlab2103a/

"Copeland’s Septet is a group of interacting galaxies located in the constellation Leo.The group was named after British astronomer Ralph Copeland, who discovered it in April 1874. It lies at an approximate distance of 400 million light years from Earth."

Original
C
D
Final
E

C

Description: Slightly less sharpening for a more "natural" look.

Uploaded: ...

D

Description: Refined processing with a bit stronger HDR and wavelet sharpening. Used NOIRLab image as a reference...

https://noirlab.edu/public/images/noirlab2103a/

Uploaded: ...

E

Description: And the final wide shot for the record. (-:

Uploaded: ...

Unique or Unusal Deep Sky Targets
ASI 6200 MM Pro

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Status	Advanced success
Started	...
Astrometry.net job	5623293
PixInsight job	OPYS19OHWY9EQIPHFYXTIP9XCIC921MF
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	11h37m52s.812
RA (top/left)	11h38m49s.772
RA (top/right)	11h36m57s.766
RA (bottom/right)	11h36m55s.902
RA (bottom/left)	11h38m47s.709

Dec (center)	+22°02′15″.28
Dec (top/left)	+22°09′44″.85
Dec (top/right)	+22°10′31″.50
Dec (bottom/right)	+21°54′43″.17
Dec (bottom/left)	+21°53′58″.48

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Copeland's Septet

Copeland's Septet

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Copeland's Septet

Copeland's Septet

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