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File:Short-wavelength NIRCam Orion mosaic in ESASky (53229687476).jpg

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One of the brightest nebulae in the night sky is Messier 42, the Orion Nebula, located south of Orion’s belt. At its core is the young Trapezium Cluster of stars, the most massive of which illuminate the surrounding gas and dust with their intense ultraviolet radiation fields, while protostars continue to form today in the OMC-1 molecular cloud behind.

The nebula is a treasure trove for astronomers studying the formation and early evolution of stars, with a rich diversity of phenomena and objects, including: outflows and planet-forming disks around young stars; embedded protostars; brown dwarfs; free-floating planetary mass objects; and photodissociation regions – the interface regions where the radiation from the massive stars heats, shapes and influences the chemistry of the gas.

The new imaging was obtained with Webb’s near-infrared camera, NIRCam, and has been made into two mosaics, one each from the short and long wavelength channels. These are among the largest Webb mosaics observed to date and given the high resolution and large area, they have been incorporated in ESASky to enable easy exploration of the plethora of interesting astronomical sources contained within them. The short-wavelength mosaic maximises Webb’s angular resolution to reveal beautiful details in discs and outflows, while the long-wavelength one showcases the intricate network of dust and organic compounds called polycyclic aromatic hydrocarbons.

This image: This image shows the full survey of the inner Orion Nebula and Trapezium Cluster made using the NIRCam instrument on the NASA/ESA/CSA James Webb Space Telescope. This is the short-wavelength colour composite, which reveals the nebula, its stars, and many other objects in unprecedented detail in the infrared.

Credits:

Caption: ESA Image: NASA, ESA, CSA / Science leads and image processing: M. McCaughrean, S. Pearson, CC BY-SA 3.0 IGO

Read more: <a href="https://www.esa.int/Science_Exploration/Space_Science/Webb/Webb_s_wide-angle_view_of_the_Orion_Nebula_is_released_in_ESASky" rel="noreferrer nofollow">www.esa.int/Science_Exploration/Space_Science/Webb/Webb_s...</a>

<a href="https://www.esa.int/ESA_Multimedia/Images/2023/09/Orion_Nebula_in_NIRCam_short-wavelength_channel" rel="noreferrer nofollow">www.esa.int/ESA_Multimedia/Images/2023/09/Orion_Nebula_in...</a>

Image Description: An image of a young star-forming region filled with wispy blue, grey, green, and red nebulosity that is brightest towards the centre and fainter towards the edges, especially in the top left corner and on the right side. Thousands of stars are seen sprinkled across the field, concentrated towards the centre, and the brightest stars show the eight spikes due to diffraction that are characteristic of Webb images.
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Source Short-wavelength NIRCam Orion mosaic in ESASky
Author NASA's James Webb Space Telescope from Greenbelt, MD, USA

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This file is licensed under the Creative Commons Attribution-Share Alike 2.0 Generic license.
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This image was originally posted to Flickr by James Webb Space Telescope at https://flickr.com/photos/50785054@N03/53229687476. It was reviewed on 28 October 2023 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-sa-2.0.

28 October 2023

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