M1 with C8 (Cosmetatos)

M1 with C8

M1 - Crab Supernova renmant.
Taken over several nights at the end of December. Unfortunately I only have about a 1hour window each night to manage subs acquisitions at a suitable altitude between 50 to 60 degrees as I am shooting from the balcony and there is a roof overhead.

Equipment: Old Celestron C8, Celestron f6.3 reducer, Lumicon Deep Sky filter, Super Polaris mount modified to work with Onstep, unmodified Canon 500D, OAG guiding with ZWO 385.
Subs: best 179 subs of 60seconds each shot over various nights at the end of December with no moon.
No Flats/Bias/Darks.

Processing in Pixinsight and Photoshop. Dynamic background extraction, Levels, Curves, Luminance noise reduction for sky, minimise stars, crop.

Location: Athens, Greece (I reckon Bortle 8)

Having experimented with Canon 500D (unmodified) I find that i struggle with achieving a nice smooth dark sky . Due to the stretching routines and the fact that the red signal is so much weaker, I find that the red channel is stretched substantially more than the rest and thus ends up very noisy. I have tried to minimise the effect using Photoshop's Camera Raw Filter applied to the sky (nebula is de-selected). I would like a smoother dark sky and stars popping a bit more clearly. Looking to add more data and to modify my Canon for astrophotography.

Please note: The following tables are updated every 24 hours.

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
Top pick nominations

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
Solar system
Extremely wide field
Star trails
Northern lights
Noctilucent clouds
Landscape

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	n/a
Started	n/a
Astrometry.net job	n/a
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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M1 with C8

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