File:ESOcast 121 Light.webm

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Original file ‎(WebM audio/video file, VP8/Vorbis, length 1 min 38 s, 3,840 × 2,160 pixels, 13.88 Mbps overall, file size: 162.2 MB)

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English: A new analysis of data from ESO’s Very Large Telescope and other telescopes suggests that the orbits of stars around the supermassive black hole at the centre of the Milky Way show the subtle effects predicted by Einstein’s general theory of relativity.

There are hints that the orbit of the star S2 is deviating slightly from the path calculated using classical physics. This tantalising result is a prelude to much more precise measurements and tests of relativity that will be made using the GRAVITY instrument as star S2 passes very close to the black hole in 2018.

This short video shows what this result means and why it is important.

The video is available in 4K UHD.

The ESOcast Light is a series of short videos bringing you the wonders of the Universe in bite-sized pieces. The ESOcast Light episodes will not be replacing the standard, longer ESOcasts, but complement them with current astronomy news and images in ESO press releases.

Credit : ESO.

Visual Design and Editing: Nico Bartmann.
Web and technical support: Mathias André and Raquel Yumi Shida.
Written by: Izumi Hansen and Richard Hook.
Music: Music written and performed by STAN DART (www.stan-dart.com).
Footage and photos: ESO, N. Risinger (skysurvey.org), Digitized Sky Survey 2, M. Parsa, L. Calçada and MPE.
Directed by: Nico Bartmann.

Executive producer: Lars Lindberg Christensen.
Date
Source ESOcast 121 Light: Star orbiting supermassive black hole suggests Einstein is right (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
current19:57, 28 February 20181 min 38 s, 3,840 × 2,160 (162.2 MB)ComputerHotline (talk | contribs)Imported media from https://cdn.eso.org/videos/ultra_hd/esocast121a.mp4

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Format Bitrate Download Status Encode time
VP9 2160P 12.8 Mbps Completed 06:33, 25 August 2018 18 min 31 s
Streaming 2160p (VP9) 12.7 Mbps Completed 10:20, 13 January 2024 9.0 s
VP9 1440P 6.5 Mbps Completed 06:35, 25 August 2018 20 min 48 s
Streaming 1440p (VP9) 6.41 Mbps Completed 14:33, 13 January 2024 5.0 s
VP9 1080P 3.29 Mbps Completed 06:21, 25 August 2018 7 min 47 s
Streaming 1080p (VP9) 3.19 Mbps Completed 12:02, 6 February 2024 4.0 s
VP9 720P 1.73 Mbps Completed 06:18, 25 August 2018 4 min 49 s
Streaming 720p (VP9) 1.63 Mbps Completed 23:25, 16 March 2024 2.0 s
VP9 480P 920 kbps Completed 06:17, 25 August 2018 3 min 44 s
Streaming 480p (VP9) 824 kbps Completed 03:32, 6 February 2024 1.0 s
VP9 360P 546 kbps Completed 06:16, 25 August 2018 2 min 32 s
Streaming 360p (VP9) 449 kbps Completed 10:04, 7 February 2024 1.0 s
VP9 240P 341 kbps Completed 06:15, 25 August 2018 2 min 12 s
Streaming 240p (VP9) 244 kbps Completed 12:12, 17 December 2023 1.0 s
WebM 360P 451 kbps Completed 20:03, 28 February 2018 5 min 27 s
Streaming 144p (MJPEG) 791 kbps Completed 12:15, 9 November 2023 14 s
Stereo (Opus) 92 kbps Completed 06:40, 22 November 2023 3.0 s
Stereo (MP3) 128 kbps Completed 04:05, 2 November 2023 3.0 s

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