The Great Nebula in Orion (greenbbs)

Celestial hemisphere: Southern · Constellation: Orion (Ori) · Contains: Great Nebula in Orion · M 42 · M 43 · NGC 1973 · NGC 1975 · NGC 1976 · NGC 1977 · NGC 1980 · NGC 1981 · NGC 1982 · The star 42Ori · The star 45Ori · The star θ1Ori · The star θ2Ori · The star ιOri

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The Great Nebula in Orion

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The Great Nebula in Orion

The Great Nebula in Orion (or, M42, M43, and NGC 1973/1975/1977)

This photo is the entirety of Orion's Sword, containing many spectacular deep sky objects.

Orion is one of my favorite areas in the sky. It is a giant stellar nursery, located approximately 1500 light years from Earth, and is approximately 30-40 light years wide. It is one of only 2 nebula in the sky visible to the naked eye in the Northern Hemisphere (the other being M8 or the Lagoon Nebula in the constellation Sagittarius in the summer sky).

Observations of the Orion Nebula show that there are approximately 700 stars being formed in it at the current time. Orion is also characterized as an emission nebula, which means that much of its reddish/pinkish color is due to the ionization of hydrogen gas due to the massive stars, which then gives off the characteristic color.

The other thing that you can see in this shot is NGC 1973/1975/1977, also known as the Running Man Nebula. It is a reflection nebula, meaning the color and shape is due to reflections of the color and light from the stars within, unlike the Orion Nebula.

NERDY DETAILS:

Stellarvue SV80ST-25SV refractor with FFS-6 field flattener

Stock, unmodified Sony A6000

Tracked on a Celestron AVX mount

60x60 second shots, ISO800

Processed in PixInsight, Photoshop, and Lightroom

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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
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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.

Status	Basic success
Started	...
Astrometry.net job	906309
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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The Great Nebula in Orion

The Great Nebula in Orion

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