Celestial hemisphere:  Northern  ·  Constellation: Camelopardalis (Cam)  ·  Contains:  NGC 2403  ·  NGC 2404
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NGC 2403, Jerry Yesavage
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NGC 2403

Getting plate-solving status, please wait...
NGC 2403, Jerry Yesavage
Powered byPixInsight

NGC 2403

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Description

Appreciate all the help getting my C11 set up.

Lessons learned on this one include going back and forth carefully between noise reduction and GHS to try to bring out the detail.  I guess others might have a better theory, but tried to get out most noise during the linear stage of processing, but it creeps back in during the stretching.

It looks like Bin 1 is the way to go... after careful consideration of other options. 

From Wikipedia:

NGC 2403
(also known as Caldwell 7) is an intermediate spiral galaxy in the constellation Camelopardalis. It is an outlying member of the M81 Group,=reference[3] and is approximately 8 million light-years distant. It bears a similarity to [url=mw-redirect=https://en.wikipedia.org/wiki/Messier_33]M33[/url], being about 50,000 light years in diameter and containing numerous star-forming H II regions.=reference[4] The northern spiral arm connects it to the star forming region NGC 2404.=reference[3] NGC 2403 can be observed using 10×50 binoculars.=reference[3]NGC 2404 is 940 light-years in diameter, making it one of the largest known H II regions. This H II region represents striking similarity with NGC 604 in M33, both in size and location in galaxy.

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    NGC 2403, Jerry Yesavage
    Original
  • NGC 2403, Jerry Yesavage
    D

D

Description: H-alpha added via using NarrowBand Assistant, with SCNR green removal.

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NGC 2403, Jerry Yesavage

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