Fichier:Comet 238P Read (NIRCam Image).png

Fichier d’origine (972 × 855 pixels, taille du fichier : 558 kio, type MIME : image/png)

Ce fichier et sa description proviennent de Wikimedia Commons.

Description

Description
English: This image of Comet 238P/Read was captured by the NIRCam (Near-Infrared Camera) instrument on NASA’s James Webb Space Telescope on September 8, 2022. It displays the hazy halo, called the coma, and tail that are characteristic of comets, as opposed to asteroids. The dusty coma and tail result from the vaporization of ices as the Sun warms the main body of the comet. Comet Read was among three objects used to define the category of main belt comets in 2006. Before that, comets were understood to reside in the Kuiper Belt and Oort Cloud, beyond the orbit of Neptune, where their ices were preserved farther from the Sun. Since that time scientists have sought to confirm the presence of sublimating material in main belt comets, proving that their coma and tail were due to the same processes that other comets exhibit. With the detection of water vapor on Comet Read, Webb’s sensitive NIRSpec (Near-Infrared Spectrograph) instrument has achieved this goal.
Date
Source https://webbtelescope.org/contents/media/images/2023/123/01H05KPGTZMCAPA4Z0TG4BV7CG?news=true
Auteur

IMAGE: NASA, ESA, CSA, Mike Kelley (UMD)

IMAGE PROCESSING: Henry Hsieh (PSI), Alyssa Pagan (STScI)

Conditions d’utilisation

w:fr:Creative Commons
paternité
paternité
ESA/Webb images, videos and web texts are released by the ESA under the Creative Commons Attribution 4.0 International license and may on a non-exclusive basis be reproduced without fee provided they are clearly and visibly credited. Detailed conditions are below; see the ESA copyright statement for full information. For images created by NASA or on the webbtelescope.org website, use the {{PD-Webb}} tag.
Conditions:
  • The full image or footage credit must be presented in a clear and readable manner to all users, with the wording unaltered (for example: "ESA/Webb"). Web texts should be credited to ESA/Webb (except when used by media). The credit should not be hidden or disassociated from the image footage. Links should be active if the credit is online. See the usage rights Q&A section on the ESA copyright page for guidance.
  • ESA/Webb materials may not be used to state or imply the endorsement by ESA/Webb or any ESA/Webb employee of a commercial product or service.
  • ESA/Webb requests a copy of the product sent to them to be indexed in their archive.
  • If an image shows an identifiable person, using that image for commercial purposes may infringe that person's right of privacy, and separate permission should be obtained from the individual.
  • If images or visuals are changed significantly from the original work (apart from resizing, cropping), we suggest that the changes are mentioned after the credit line. For example "Original image by ESA/Webb (N. Bartmann), warping and recolouring by NN".

Notes:

  • Note that this general permission does not extend to the use of ESA/Webb's logos, which shall remain protected and may not be used or reproduced without prior and individual written consent of ESA/Webb.
  • Also note that music, scientific papers and code on the www.esawebb.org site are not released under this license and can not be used for non-ESA/Webb products.
  • By reproducing ESA/Webb material, in part or in full, the user acknowledges the terms on which such use is permitted.
w:fr:Creative Commons
paternité
Ce fichier est disponible selon les termes de la licence Creative Commons Attribution 4.0 International.
Attribution: NASA, ESA, CSA, and STScI
Vous êtes libre :
  • de partager – de copier, distribuer et transmettre cette œuvre
  • d’adapter – de modifier cette œuvre
Sous les conditions suivantes :
  • paternité – Vous devez donner les informations appropriées concernant l'auteur, fournir un lien vers la licence et indiquer si des modifications ont été faites. Vous pouvez faire cela par tout moyen raisonnable, mais en aucune façon suggérant que l’auteur vous soutient ou approuve l’utilisation que vous en faites.

Légendes

Ajoutez en une ligne la description de ce que représente ce fichier

Éléments décrits dans ce fichier

dépeint

image/png

75c5a2f43a1af9c3cd7ed68779c8c3d3af040b84

570 964 octet

855 pixel

972 pixel

Historique du fichier

Cliquer sur une date et heure pour voir le fichier tel qu'il était à ce moment-là.

Date et heureVignetteDimensionsUtilisateurCommentaire
actuel15 mai 2023 à 17:23Vignette pour la version du 15 mai 2023 à 17:23972 × 855 (558 kio)C messierUploaded a work by IMAGE: NASA, ESA, CSA, Mike Kelley (UMD) <br/> IMAGE PROCESSING: Henry Hsieh (PSI), Alyssa Pagan (STScI) from https://webbtelescope.org/contents/media/images/2023/123/01H05KPGTZMCAPA4Z0TG4BV7CG?news=true with UploadWizard

La page suivante utilise ce fichier :

Usage global du fichier

Les autres wikis suivants utilisent ce fichier :

Métadonnées