Andromeda (Godfrey Benjamin)

Celestial hemisphere: Northern · Constellation: Andromeda (And) · Contains: Andromeda Galaxy · M 110 · M 31 · M 32 · NGC 205 · NGC 221 · NGC 224 · The star 32 And

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Andromeda

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Andromeda

This was a project with two goals - to test the iExos-100 in cold weather and to capture a galaxy. I think it went well! The data also uses 3 subframes from Oct 2022.
Date: Nov 18 2022 + Oct 21 2022

ISO 200
24 x 120 sec subs
3 x 180 sec subs
No calibration frames
Location: Scarborough, Ontario, Canada - Bortle 8

Equipment:

Camera - Nikon D5300
Telescope - Astro-Tech AT72EDii

Focal Length - 343 mm using Astro-Tech 0.8 Reducer/Field Flattener
Filter - Optolong L-Pro 2"

Guidescope - SVBONY SV165
Guide Camera - ZWO ASI120mm Mini
Mount: IEXOS-100
Acquisition Software - Kstars/Ekos running on Astroberry via Raspberry Pi, PHD2 for guiding

Processing:

Stacked on Deep Sky Stacker - all subs, and saved as a TIF file
Edited using Pixinsight:

Dynamic Background Extraction - emphasis on vignetting at the corners
Photometric Color Calibration
Multiscale Linear Transform for noise reduction
Histogram Transformation to stretch image
Starnet2 to separate stars from the image + Clonestamp for fixing dust motes
SCNR to remove Green cast
LocalHistogramEqualization to make the dust lanes prominent
Curves Transformation - focus on balancing the background blotch
GAME script for masking the galaxy
ColorSaturation for adjusting to taste
Curves Transformation for adjusting to taste
Saved as TIF

Topaz Denoise

Slight noise reduction keeping the details intact

Topaz Sharpen

Minimal sharpening to taste

Back to Pixinsight

PixelMath to combine stars back into image
EZ Star Reduction to reduce star size
Save as TIF and JPEG

Light Polluted skies
Astroberry Users
Beginners AP
Canadian Astrophotography
DSLR/Mirrorless Imagers from the World
INDI Users
Suburban Astrophotography

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	Distinct awarded users	Total awarded images
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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
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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
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Public amaeteur data
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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	Basic success
Started	...
Astrometry.net job	6620633
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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Andromeda

Andromeda

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Andromeda

Andromeda

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Sky plot

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