File:Artificial stars over Paranal.webm

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Original file(WebM audio/video file, VP8, length 10 s, 3,840 × 2,160 pixels, 2.11 Mbps overall, file size: 2.52 MB)

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English: At the isolated Very Large Telescope (VLT) at ESO's Paranal Observatory, the arid desert offers near perfect conditions for observations. However, the atmosphere still distorts light from distant objects, and astronomers often use 'reference stars' with known properties to compare and correct images. But if a suitable star isn't available, the VLT now has a perfect solution - simulate one! The new system of four lasers allows astronomers to create artificial reference stars to improve their results.
Date
Source ESO
Author ESO/F. Kamphues

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File history

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Date/TimeThumbnailDimensionsUserComment
current08:51, 13 September 201610 s, 3,840 × 2,160 (2.52 MB)Originalwana (talk | contribs)User created page with UploadWizard

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Format Bitrate Download Status Encode time
VP9 2160P 4.52 Mbps Completed 04:40, 18 August 2018 1 min 21 s
Streaming 2160p (VP9) 4.52 Mbps Completed 03:43, 13 January 2024 1.0 s
VP9 1440P 3.03 Mbps Completed 04:39, 18 August 2018 52 s
Streaming 1440p (VP9) 3.03 Mbps Completed 05:42, 13 January 2024 1.0 s
VP9 1080P 1.49 Mbps Completed 04:39, 18 August 2018 36 s
Streaming 1080p (VP9) 1.49 Mbps Completed 10:07, 17 January 2024 1.0 s
VP9 720P 768 kbps Completed 04:38, 18 August 2018 23 s
Streaming 720p (VP9) 768 kbps Completed 06:10, 31 January 2024 1.0 s
VP9 480P 365 kbps Completed 04:38, 18 August 2018 17 s
Streaming 480p (VP9) 365 kbps Completed 17:27, 18 December 2023 1.0 s
VP9 360P 175 kbps Completed 04:38, 18 August 2018 13 s
Streaming 360p (VP9) 175 kbps Completed 12:23, 12 January 2024 1.0 s
VP9 240P 89 kbps Completed 04:38, 18 August 2018 10 s
Streaming 240p (VP9) 88 kbps Completed 15:29, 12 December 2023 1.0 s
WebM 360P 516 kbps Completed 08:52, 13 September 2016 26 s
Streaming 144p (MJPEG) 674 kbps Completed 15:47, 30 October 2023 3.0 s

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