File:The astronomical explanation for Mercury retrograde.webm
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The_astronomical_explanation_for_Mercury_retrograde.webm (file size: 2.71 MB, MIME type: video/webm)
Summary
| Description |
English: An astronomical explanation for Mercury's retrograde motion: the inner planet appears to retrace its steps a few times per year. Every planet does this, every year. In fact, there is a planet in retrograde for 75% of 2020. |
| Date | |
| Source | https://www.youtube.com/watch?v=S9BZm5aVr9s |
| Author | Dr. James O'Donoghue under YouTube alias "Interplanetary" |
Licensing
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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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| Date/Time | Dimensions | User | Comment | |
|---|---|---|---|---|
| current | 10:42, 16 May 2023 | (2.71 MB) | imagescommonswiki>CactiStaccingCrane | Uploaded a work by Dr. James O'Donoghue under YouTube alias "Interplanetary" from https://www.youtube.com/watch?v=S9BZm5aVr9s with UploadWizard |
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- File:The astronomical explanation for Mercury retrograde.webm from Wikimedia Commons
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