Helix Nebula NGC7293 (Eugenio Medda)

Celestial hemisphere: Southern · Constellation: Aquarius (Aqr) · Contains: Helix Nebula · NGC 7293

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Helix Nebula NGC7293

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Helix Nebula NGC7293

Helix Nebula NGC7293 (Eye of God)

8 hours and a half of exposure (171 pictures in total) in the nights between 20th, 21st and 25th of August 2023.
Discovered in 1842 by Karl Ludwig Harding, is the closest planetary nebula to earth.
It has been generated by the expulsion of external layers of gas of a star similar to our Sun at the end of it's life.
Now the nebula is visible because such gases are ionized by the radiated emission of that star that is now a white darft (star it's well visible at the center of the nebula).
It's a very hard subject to be captured from North east of Italy due to it's very low position over the orizon (25° max): and so details, confused by the light pollution, are not so nice as for other objects captured at the zenit.
Nevertheless, the incomparable fascination of this cloud of gases reminding the shape of a human (or divine) eye, leave you speachless independently of the quality of the result...

Setup
Imaging Telescope Skywatcher 200/1000mm
Imaging Camera QHY163M
Mount Skywatcher HEQ5
Guiding Telescope Sharp Guide 70mm
Guiding camera ZWO ASI120MM Mini

Imaging
Composition Ha/OIII/SII
Ha 60x180sec
OIII 58x180sec
SII 53X180sec

Software
DeepSkyStaker
Siril
Gimp

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	Basic success
Started	...
Astrometry.net job	8374947
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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Helix Nebula NGC7293

Helix Nebula NGC7293

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Helix Nebula NGC7293

Helix Nebula NGC7293

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