NGC 2403 - An Unfinished Project (Chris Sullivan)

Celestial hemisphere: Northern · Constellation: Camelopardalis (Cam) · Contains: NGC 2403

NGC 2403 - An Unfinished Project, Chris Sullivan

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NGC 2403 - An Unfinished Project

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NGC 2403 - An Unfinished Project

Edit (June 3, 2018): I went after this one for a second time in the fall of 2017 while I was waiting for my refractor to be replaced but I didn't capture enough data to create an acceptable image. I discovered a few additional techniques for selective noise reduction while processing the Cat's Eye Nebula and decided to give it another shot. It's markedly better than the image from November of 2016 (which I never took off my wall), but since it is still unfinished, noisy and flawed, I didn't think it deserved to be published separately. The equipment for both attempts (almost exactly a year apart) was identical.

Revisions A, B and C:

Dates: Nov. 16, 2016

Frames: 70x300"

Integration: 5.8 hours

Original
B
C
Final
D

B

Description: Restacked with a different set of flats to see if it helped the noise at all.

Uploaded: ...

C

Description: High pass overlay.

Uploaded: ...

D

Description: Second attempt one year later. Unfortunately, I was not able to get enough subs to make a good image out of it. For galaxies under Bortle 8 skies, I need at least 10-20 hours at f/3.9.

Uploaded: ...

Cloudy Nights

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The “AstroBin Image of the Day and Top Picks”, or IOTD/TP, is a long-running system to promote beautiful, interesting, peculiar, or otherwise amazing astrophotographs, with a focus on technical excellence. Learn more.

Submitted The date and time when you submitted this image for IOTD/TP consideration.	...
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Status	Basic success
Started	...
Astrometry.net job	1351976
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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NGC 2403 - An Unfinished Project

NGC 2403 - An Unfinished Project

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Image Index:

Contribution Index (beta):

NGC 2403 - An Unfinished Project

NGC 2403 - An Unfinished Project

Equipment

Acquisition details

Description

Comments

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B

C

D

Sky plot

Histogram

In these public groups

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