File:ESOcast 144 Light.webm

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Original file (WebM audio/video file, VP8/Vorbis, length 1 min 25 s, 3,840 × 2,160 pixels, 6.61 Mbps overall, file size: 66.98 MB)

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Français : Grâce au Very Large Telescope de l’ESO, des astronomes ont pour la toute première fois observé les motifs de la granulation à la surface d’une étoile située à l’extérieur du Système Solaire – la vieille géante rouge π1 Gruis.

Cette nouvelle image acquise par l’instrument PIONIER révèle la présence de cellules convectives à la surface de cette étoile dont le diamètre excède les 350 diamètres solaires. Chaque cellule couvre plus du quart du diamètre de l’étoile et s’étend sur quelque 120 millions de kilomètres.

Cette vidéo est disponible au format 4K UHD.

Les ESOcast Light forment une série de courtes vidéos d’introduction aux merveilles de l’Univers. Les épisodes des ESOcast Light n’ont pas vocation à remplacer les ESOcasts standards, de plus longue durée, mais à les compléter d’actualités et d’images astronomiques récentes, publiées au sein des Communiqués de Presse de l’ESO.

Crédit : ESO.

Directed by : Nico Bartmann.
Editing : Nico Bartmann.
Web and technical support : Mathias André and Raquel Yumi Shida.
Written by : Rosa Jesse and Richard Hook.
Music written and performed by : John Stanford (johnstanfordmusic.com).
Footage and photos : ESO, B. Lazareff (LAOG), Digitized Sky Survey 2, N. Risinger (skysurvey.org), NASA, SDO, M. Kornmesser, L. Calçada, H. Boffin, ESA.

Executive producer : Lars Lindberg Christensen.
Date
Source ESOcast 144 Light: Des bulles géantes à la surface d’une géante rouge (4K UHD)
Author ESO
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(Reusing this file)
This media was created by the European Southern Observatory (ESO).
Their website states: "Unless specifically noted, the images, videos, and music distributed on the public ESO website, along with the texts of press releases, announcements, pictures of the week, blog posts and captions, are licensed under a Creative Commons Attribution 4.0 International License, and may on a non-exclusive basis be reproduced without fee provided the credit is clear and visible."
To the uploader: You must provide a link (URL) to the original file and the authorship information if available.
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This file is licensed under the Creative Commons Attribution 4.0 International license.
You are free:
  • to share – to copy, distribute and transmit the work
  • to remix – to adapt the work
Under the following conditions:
  • attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.

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Date/TimeThumbnailDimensionsUserComment
current07:19, 28 February 20181 min 25 s, 3,840 × 2,160 (66.98 MB)ComputerHotline (talk | contribs)Imported media from https://cdn.eso.org/videos/ultra_hd/eso1741a.mp4

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Format Bitrate Download Status Encode time
VP9 2160P 7.69 Mbps Completed 06:53, 25 August 2018 17 min 5 s
VP9 1440P 3.88 Mbps Completed 06:50, 25 August 2018 14 min 11 s
VP9 1080P 1.95 Mbps Completed 06:41, 25 August 2018 5 min 6 s
VP9 720P 1.06 Mbps Completed 06:39, 25 August 2018 3 min 32 s
VP9 480P 610 kbps Completed 06:38, 25 August 2018 2 min 23 s
VP9 360P 385 kbps Completed 06:38, 25 August 2018 1 min 54 s
VP9 240P 264 kbps Completed 06:37, 25 August 2018 1 min 34 s
WebM 360P 516 kbps Completed 07:21, 28 February 2018 2 min 8 s
QuickTime 144p (MJPEG) 937 kbps Completed 13:51, 23 October 2024 13 s

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