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File:ESOcast 15.webm

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Original file ‎(WebM audio/video file, VP8/Vorbis, length 10 min 31 s, 1,280 × 720 pixels, 2.77 Mbps overall, file size: 208.26 MB)

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English: Every night, all year round, the ESO Very Large Telescope, or VLT, opens its four giant eyes to scrutinise the beautiful southern skies. Each eye is a huge mirror, 8.2 metres in diameter, that gathers the light of the night sky, and reflects it into optical systems that form ultra-sharp images of the Universe. But keeping the VLT´s eyes clear requires each mirror to be cleaned and recoated occasionally, a delicate and complex procedure.

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Credit:ESO. Visual design and editing: Martin Kornmesser and Luis Calçada. Cinematography: Peter Rixner. Editing: Herbert Zodet. Web and technical support: Lars Holm Nielsen and Raquel Yumi Shida. Written by: Herbert Zodet, Henri Boffin and Eric Hal Schwartz. Host: Dr. J. Narration: Gaitee Hussain. Music: movetwo. Footage and photos: ESO, José Francisco Salgado (josefrancisco.org). Directed by: Herbert Zodet. Executive producer: Lars Lindberg Christensen.
Čeština: Vzájemně propojená soustava čtyř velkých teleskopů o průměru zrcadla 8,2 m Very Large Telescope astronomické organizace Evropská jižní observatoř (ESO) v severním Chile na hoře Cerro Paranal slouží k pozorování jižní oblohy. Pro její trvalé udržení v provozu je však nutno každé zrcadlo v případě potřeby čistit a obnovovat jeho povrch.
Эрзянь: ESO Very Large Telescope ваны пеличеёнксонь менеленть мельга ниле чамаваноматнесэ, конат 8.2 метрань диаметрань покшолмасо. Ансяк VLT-нь сельменть неемантень туртов эряви кой-коли чамаваноматнень урядомс ды пекстнемс.
Polski: Film przedstawiający proces demontowania, czyszczenia i ponownego pokrywania warstwą odblaskową jednego z czterech luster o średnicy 8,2 m wykorzystywanych w teleskopie VLT należącym do Europejskiego Obserwatorium Południowego.
Date
Source ESOcast 15: Recoating a Giant VLT Mirror
Author ESO
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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."
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Assessment

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Media of the day This file was selected as the media of the day for 16 April 2020. It was captioned as follows:
English: The ESO Very Large Telescope observes the southern skies using four mirrors 8.2 metres in diameter. But keeping the VLT´s eyes clear requires each mirror to be cleaned and recoated occasionally.
Other languages
Čeština: Vzájemně propojená soustava čtyř velkých teleskopů o průměru zrcadla 8,2 m Very Large Telescope astronomické organizace Evropská jižní observatoř (ESO) v severním Chile na hoře Cerro Paranal slouží k pozorování jižní oblohy. Pro její trvalé udržení v provozu je však nutno každé zrcadlo v případě potřeby čistit a obnovovat jeho povrch.
English: The ESO Very Large Telescope observes the southern skies using four mirrors 8.2 metres in diameter. But keeping the VLT´s eyes clear requires each mirror to be cleaned and recoated occasionally.
Эрзянь: ESO Very Large Telescope ваны пеличеёнксонь менеленть мельга ниле чамаваноматнесэ, конат 8.2 метрань диаметрань покшолмасо. Ансяк VLT-нь сельменть неемантень туртов эряви кой-коли чамаваноматнень урядомс ды пекстнемс.
Polski: Film przedstawiający proces demontowania, czyszczenia i ponownego pokrywania warstwą odblaskową jednego z czterech luster o średnicy 8,2 m wykorzystywanych w teleskopie VLT należącym do Europejskiego Obserwatorium Południowego.

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Date/TimeThumbnailDimensionsUserComment
current10:40, 7 March 201810 min 31 s, 1,280 × 720 (208.26 MB)ComputerHotline (talk | contribs)Imported media from https://cdn.eso.org/videos/hd_and_apple/esocast15.m4v

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Format Bitrate Download Status Encode time
VP9 720P 2.02 Mbps Completed 07:08, 25 August 2018 26 min 53 s
Streaming 720p (VP9) 1.91 Mbps Completed 23:55, 16 March 2024 26 s
VP9 480P 996 kbps Completed 06:57, 25 August 2018 16 min 58 s
Streaming 480p (VP9) 887 kbps Completed 03:36, 6 February 2024 5.0 s
VP9 360P 577 kbps Completed 06:51, 25 August 2018 11 min 1 s
Streaming 360p (VP9) 468 kbps Completed 10:08, 7 February 2024 4.0 s
VP9 240P 352 kbps Completed 06:49, 25 August 2018 8 min 26 s
Streaming 240p (VP9) 243 kbps Completed 12:17, 17 December 2023 2.0 s
WebM 360P 588 kbps Completed 10:47, 7 March 2018 6 min 44 s
Streaming 144p (MJPEG) 828 kbps Completed 12:22, 9 November 2023 20 s
Stereo (Opus) 105 kbps Completed 06:43, 22 November 2023 10 s
Stereo (MP3) 128 kbps Completed 04:11, 2 November 2023 23 s

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