The Clouds of Sagitarius (Luis Argerich)

Contains: Extremely wide field

The Clouds of Sagitarius

This mosaic shows the heart of our own Galaxy: The Milky Way from the Great Sagitarius Star Cloud on the left to the Small Sagitarius Star Cloud (M24) on the right.

The great Sagitarius star cloud on the left is an area free of dust towards the center of our galaxy, what we see is part of the core of the galaxy. This core is depleted of young blue

stars and that's why it looks so yellow, most of its stars are yellow, orange and red giants.

The small Sagitarius star cloud on the right is also a window but it points to the inner spiral arms of our galaxy and shows how the Milky Way would look if it weren't obstructed in

so many parts by cosmic dust.

In the middle of the photo we have the famous Lagoon (M8) and Trifid (M20) nebulas, the Lagoon is visible to the naked eye from dark locations. It's a stellar nursery where new stars

are being born, there's a very young clutser NGC 6530 at the core of the nebula. The hot young stars ionize the gas in the nebula creating the red glow. It's then an emission nebula.

The Trifid (M20) is a combination of emission nebula (red), reflection nebula (blue) and dark nebulas (black).

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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.

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PixInsight job	n/a
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The Clouds of Sagitarius

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Image Index:

Contribution Index (beta):

The Clouds of Sagitarius

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Description

Comments

Revisions

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