File:Solar eclipse size of penumbra.svg
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Size of this PNG preview of this SVG file: 799 × 155 pixels. Other resolutions: 320 × 62 pixels | 640 × 124 pixels | 1,024 × 199 pixels | 1,280 × 248 pixels | 2,560 × 497 pixels | 1,087 × 211 pixels.
Original file (SVG file, nominally 1,087 × 211 pixels, file size: 40 KB)
Summary
| Description |
English: This diagram explains why the penumbra of a solar eclipse is approximately twice the size of the Moon. Since the Sun and Moon have nearly the same angular diameter, the umbra is reduced to nearly a single point in length. Therefore the three angles marked in red are nearly equal, all with a base equal to the Moon's diameter. |
| Date | |
| Source | Own work |
| Author | Guy vandegrift |
Licensing
I, the copyright holder of this work, hereby publish it under the following license:
This file is licensed under the Creative Commons Attribution-Share Alike 4.0 International license.
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File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 00:09, 24 May 2017 | | 1,087 × 211 (40 KB) | wikimediacommons>Guy vandegrift | I am having a strange problem with uploading improved versions of this. |
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