M16 (Jochen Maes)

M16

Link: https://www.jochenmaes.com/astronomy/nebulae?itemId=0fc2la5fa4f9k2io8gnx3ffu9blpw8

M16

Link: https://www.jochenmaes.com/astronomy/nebulae?itemId=0fc2la5fa4f9k2io8gnx3ffu9blpw8

M16 is an emission nebula in the Serpens constellation, around 7000 light years from earth.

I actually captured this data during the year of which we do not speak (2020). Since then, my processing skillset has improved quite a bit, so I felt a reprocess was in order. Overall, quite happy with the result.

The area is most "famous" because of the elongated structures throughout (the iconic "pillars of creation" imaged by the Hubble telescope). So what's going on there?

The reason for these structures to appear is twofold:

1) Material in those areas is so dense that it starts to collapse in on itself (by itself, we mean the core region). This is essentially what causes new stars to be formed within.

2) Because of the presence of these stars, a process called "photoevaporation" occurs. This quite simply means that radiation from those newly formed stars is blowing the structure apart from the inside. Only the densest areas are able to hold so to speak, while the outer areas are being blown away. As a result, you end up with a very distinct almost carved out looking dense structure.

Image acquisition details:

25x300" HA
25x300" OIII
25x300" SII

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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
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 failed
Started	...
Astrometry.net job	6083420
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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M16

M16

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M16

M16

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