M106 the Maelstrom (Aaron Freimark)

Celestial hemisphere: Northern · Constellation: Canes Venatici (CVn) · Contains: M 106 · NGC 4217 · NGC 4220 · NGC 4226 · NGC 4231 · NGC 4232 · NGC 4248 · NGC 4258

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M106 the Maelstrom

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M106 the Maelstrom

Well this came out better than I expected. Last night was probably the clearest, calmest night we've had here in months. This is my first time attempting M106. I keep having low expectations for galaxies with my small scope. But... not bad? Zoom in for the details.

Below is my processing, which I always try to include.

Preprocessing

1. WeightedBatchProcessing (Calibrate only),

2. Crop one image as master

3. Image Registration all images to master

4. Subframe Selector for each filter

5. Local Normalization

6. Image Integration

7. Drizzle Integration

8. Dynamic Background Extraction on each filter

RGB

1. EZ Denoise

2. Statistics to see that R has highest median

3. B, G: LinearFit to R

4. ChannelCombination RGB

5. Image Solver script

6. Photometric Color Calibration

7. EZ Soft Stretch

Luminance

1. EZ Decon

2. EZ Denoise

3. ArcsinhStretch

4. Export as TIFF, draw a mask by hand in Photoshop

5. Apply mask to protect galaxies

6. Histogram Transofomation to reduce star sizes

7. Invert mask to protect stars

8. MDR Multiscale Transform to bring out midrange detail

9. LRGB Combination to apply L to RGB

Ha

1. EZ Denoise

2. ArcsinhStretch

3. Curves Transformation to reveal only brightest pixels

4. Protect RGB stars with that Photoshop mask again

5. PixelMath to multiply Ha to RGB: R: 1-((1-RGB) * (1-Ha)); G: RGB; B: RGB

LRGB + Ha

1. LRGB Combination to apply L to RGB

2. Curves Transformation

3. Dynamic Crop

4. Topaz Denoise AI

Mid-Hudson Astronomical Association (MHAA)
Northeast Imagers
INDI Users

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Distribution of astrophotographers

This table shows the number of distinct astrophotographers who have been assigned and IOTD/TP award compared to the total number of images awarded.
	Distinct awarded users	Total awarded images
Image of the day
Top picks
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Distribution of subject types

This table shows the distribution of awards per subject type, compared to the popularity of images of that subject type.
	Image of the day	Top pick	Top pick nominations	Total submitted
Deep sky
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Star trails
Northern lights
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Distribution of data sources

This table shows the distribution of awards per data source, compared to the popularity of images acquired from that data source.
	Image of the day	Top pick	Top pick nominations	Total submitted
Backyard
Traveller
Own remote observatory
Amateur hosting facility
Public amaeteur data
Professional, scientific grade data
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.
Promotions by Submitters When 3 distinct Submitters promote the image, it moves on to the next stage of the process: evaluation for Top Pick status. This requirement, in addition to anonymization of images and distribution to only a subset of them, prevents biases and ensures that the best images are selected.
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	4380719
PixInsight job	B81GXW4KCTG3YFPYFAOYN61IMVL2IPSD
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	12h18m57s.82
RA (top/left)	12h15m11s.80
RA (top/right)	12h15m18s.40
RA (bottom/right)	12h22m37s.30
RA (bottom/left)	12h22m43s.94

Dec (center)	+47°18′47″.4
Dec (top/left)	+48°03′04″.4
Dec (top/right)	+46°34′08″.0
Dec (bottom/right)	+46°34′04″.5
Dec (bottom/left)	+48°03′04″.8

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M106 the Maelstrom

M106 the Maelstrom

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M106 the Maelstrom

M106 the Maelstrom

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Description

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Sky plot

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