File:Hubblecast 59.webm

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Original file (WebM audio/video file, VP8/Vorbis, length 6 min 14 s, 1,920 × 1,080 pixels, 3.31 Mbps overall, file size: 147.74 MB)

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English: In this episode of the Hubblecast, we do away with Hubble’s stunning pictures of the cosmos, and focus on one of the telescope’s most important — but least known — functions.

Like a digital camera, Hubble’s cameras produce colour images by sampling just a handful of colours and combining them together into one picture. The detail is extraordinary — but while the colours are accurate enough for the human eye, they are not good enough for some kinds of scientific work, such as the study of distant galaxies and extrasolar planets.

For much of their research, astronomers use Hubble’s spectrometers, devices that split up light into a rainbow of component colours, to reveal many of the hidden properties of the Universe. These observing methods may not produce attractive images, but they lie behind some of the most profound science that Hubble does.

In this episode, presenter Joe Liske (aka Dr J) and Hubble astronomer Bob Fosbury give a introduction to spectroscopy using Hubble, how it works, and what it’s for.

Credit:ESA/Hubble

Visual design and editing: Martin Kornmesser
Web and technical support: Mathias Andre and Raquel Yumi Shida
Written by: Oli Usher
Interviews: Oli Usher
Filming: Herbert Zodet
Presented by: Joe Liske (Dr J), with Bob Fosbury
Narrator: Sara Mendes da Costa
Images: NASA, ESA, Bob Fosbury, Martin Kornmesser
Visualisations and animations: Luis Calçada, Martin Kornmesser, André Roquette.
Music: Steve Buick
Directed by: Oli Usher
Cinematography: Peter Rixner (www.perix-media-gmbh.de)

Executive producer: Lars Lindberg Christensen
Date
Source Hubblecast 59: Unweaving the rainbow
Author see above
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Date/TimeThumbnailDimensionsUserComment
current07:55, 8 March 20186 min 14 s, 1,920 × 1,080 (147.74 MB)ComputerHotline (talk | contribs)Imported media from https://cdn.spacetelescope.org/archives/videos/hd_1080p25_screen/hubblecast59a.mp4

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Format Bitrate Download Status Encode time
VP9 1080P 2.48 Mbps Completed 03:13, 29 August 2018 26 min 3 s
VP9 720P 1.01 Mbps Completed 02:59, 29 August 2018 11 min 41 s
VP9 480P 536 kbps Completed 02:54, 29 August 2018 7 min 24 s
VP9 360P 330 kbps Completed 02:52, 29 August 2018 4 min 50 s
VP9 240P 234 kbps Completed 02:51, 29 August 2018 4 min 17 s
WebM 360P 456 kbps Completed 08:00, 8 March 2018 4 min 55 s
QuickTime 144p (MJPEG) 969 kbps Completed 20:28, 2 November 2024 27 s

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