Needle Galaxy (take 2) (Aaron Freimark)

Celestial hemisphere: Northern · Constellation: Coma Berenices (Com) · Contains: IC 3543 · IC 3546 · IC 3571 · NGC 4565 · Needle Galaxy

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Needle Galaxy (take 2)

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Needle Galaxy (take 2)

I'm really enjoying reshooting objects with my 120mm scope, that I previously captured with my 71mm. The scope is better, but so is my guiding, and perhaps my processing as well. Thank yous to so many AP YouTubers for sharing your knowledge with me!

Take 1 of the Needle Galaxy was just over a year ago.

Needle Galaxy

This time, I have slightly more acquisition time. For processing, I've been using pretty much the same sequence of steps, with some slight refinements each time.

Preprocessing
1. WeightedBatchProcessing
2. Create preview around galaxy
3. DrizzleIntegration with Region of Interest to crop to preview
4. Dynamic Background Extraction on R, G, B, L

L
1. EZ Decon, editing the star mask with the Clone Stamp tool to clean up some defects
2. EZ Denoise
3. Histogram Transformation to stretch

RGB
1. LinearFit R & B to G
2. ChannelCombination
3. ImageSolver script
4. Photometric Color Calibration
5. EZ Soft Stretch
6. Convolution to 3.0 StdDev
7. LRGB Combination to apply L, with 0.3 saturation, repeat 2x
8. Repeat LRGB Combination, with Color Noise Reduction
9. CurvesTransformation
10. Apply star_mask from EZ Denoise
11. Unsharp Mask to sharpen galaxies while avoiding stars
12. Export to TIFF and process in Topaz DeNoise AI
13. Return to PixInsight and run EZ Star Reduce, and save as a separate file
14. Open both DeNoise and star reduced images in photoshop, with star reduced on the top later
15. Use erase tool to “punch out” some stars to expose the larger, non-reduced stars in the original (this gives a slight 3D effect)
16. Save as TIFF and high-quality JPEG

Original
Final
D

Mid-Hudson Astronomical Association (MHAA)
Northeast Imagers

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	Distinct awarded users	Total awarded images
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Mix of multiple sources
Other
Unknown

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.	...
Views by Submitters (available since September 19th, 2023) Every image is assigned to 50% of available Submitters. In the event that at least 80% of them don't view the image before its time in the IOTD/TP process expires, it's assigned to the other 50% of Submitters and the process begins anew.
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Promotions by Reviewers When 3 distinct Reviewers promote the image, it moves on to the next stage of the process: evaluation for IOTD status.
Early dismissal Staff members have a lot of images to inspect on a daily basis, and they can dismiss images if they believe they don't meet the requirements for IOTD/TP selection. If an image is dismissed 5 times, it's removed from the process. This streamlines the process and ensures that any bias present in promotions could be overruled by other staff members.

Status	Advanced success
Started	...
Astrometry.net job	5705837
PixInsight job	H6824AAKPOY72553IBOI20Y9XHSVOST6
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	12h36m20s.337
RA (top/left)	12h34m49s.500
RA (top/right)	12h36m48s.249
RA (bottom/right)	12h37m51s.551
RA (bottom/left)	12h35m52s.246

Dec (center)	+25°59′26″.30
Dec (top/left)	+26°05′45″.37
Dec (top/right)	+25°38′52″.33
Dec (bottom/right)	+25°53′03″.72
Dec (bottom/left)	+26°19′58″.13

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Needle Galaxy (take 2)

Needle Galaxy (take 2)

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Image Index:

Contribution Index (beta):

Needle Galaxy (take 2)

Needle Galaxy (take 2)

Equipment

Acquisition details

Description

Comments

Revisions

Sky plot

Histogram

In these public groups

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