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File:Sidereal Day versus Solar Day.webm

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Original file (WebM audio/video file, VP9, length 34 s, 1,920 × 1,080 pixels, 807 kbps overall, file size: 3.23 MB)

Summary

Description
English: Earth physically rotates in 23hours 56min relative to distant stars – a Sidereal Day, BUT it takes 24hours to rotate relative to the Sun – a Solar Day

The difference? Earth orbits the Sun, so the Sun appears to move (down, in the vid), which means Earth needs +4mins to catch up!

Imagery from: NASA / Solar System Scope processing https://www.solarsystemscope.com/textures/ under CC BY 4.0

NASA ephemeris data: https://ssd.jpl.nasa.gov/horizons/app.html
Date
Source YouTube: Sidereal Day versus Solar Day – View/save archived versions on archive.org and archive.today
Author Dr. James O'Donoghue under YouTube alias "Interplanetary"

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This video, screenshot or audio excerpt was originally uploaded on YouTube under a CC license.
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This file is licensed under the Creative Commons Attribution 3.0 Unported license.
Attribution: James O'Donoghue
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2 February 2020

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Date/TimeThumbnailDimensionsUserComment
current14:36, 16 May 202334 s, 1,920 × 1,080 (3.23 MB)CactiStaccingCraneUploaded a work by Dr. James O'Donoghue under YouTube alias "Interplanetary" from https://www.youtube.com/watch?v=WWw4JY2dNXM with UploadWizard

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