Saying Goodbye to Orion (Ali Alobaidly)

Celestial hemisphere: Southern · Constellation: Orion (Ori) · Contains: 41 Ori A) · 41 Ori C · 41 Ori D · 42 Ori) · 43 Ori) · 44 Ori) · Great Orion Nebula · IC 420 · Lower Sword · M 42 · M 43 · Mairan's Nebula · NGC 1973 · NGC 1975 · NGC 1976 · NGC 1977 · NGC 1980 · NGC 1981 · NGC 1982 · Orion Nebula · The star 45 Ori · The star Hatysa (ι Ori · The star Mizan Batil I (c Ori · The star Mizan Batil II (θ2 Ori · The star Trapezium (θ1 Ori A · The star θ1 Ori C · The star θ1 Ori D · Upper Sword · the Running Man Nebula

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Saying Goodbye to Orion

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Saying Goodbye to Orion

Although many believe that the Great Orion Nebula is one of the simplest targets to photograph, I believe that it is one of the most difficult targets to truly master. With its wide dynamic range and elusive core details, this nebula continues to amaze and mesmerize. The Image you see above was captured using a 384mm triplet apochromatic refractor in both broadband, to emphasize the nebula's natural colour, and in narrowband to give those hydrogen alpha emission some shine. Indeed, exposures that are 3 minutes long may blow up the core of the nebula out of proportion, but with modern data stretching techniques and histogram manipulation, the core's intense light can be pushed back to reveal the stellar nursery's intricate core without sacrificing too much contrast or background detail. Every season, I point my telescope towards Orion, so, for my final image of the winter skies, I present this farewell as I turn my attention (and my telescopes) towards those long awaited spring galaxies.

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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
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
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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
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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.

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Saying Goodbye to Orion

Saying Goodbye to Orion

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Saying Goodbye to Orion

Saying Goodbye to Orion

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