File:Ssn yearly.jpg
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Size of this preview: 800 × 253 pixels. Other resolutions: 320 × 101 pixels | 906 × 286 pixels.
Original file (906 × 286 pixels, file size: 27 KB, MIME type: image/jpeg)
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400 year sunspot history, measured with Wolfer numbers.
- 1790 to 1820: Dalton Minimum
- 1645 to 1715: Maunder Minimum
Source: http://science.nasa.gov/ssl/pad/solar/images/ssn_yearly.jpg
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This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.) |  |
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This graph image could be re-created using vector graphics as an SVG file. This has several advantages; see Commons:Media for cleanup for more information. If an SVG form of this image is available, please upload it and afterwards replace this template with
{{vector version available|new image name}}.
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 | This graph image was uploaded in the JPEG format even though it consists of non-photographic data. This information could be stored more efficiently or accurately in the PNG or SVG format. If possible, please upload a PNG or SVG version of this image without compression artifacts, derived from a non-JPEG source (or with existing artifacts removed). After doing so, please tag the JPEG version with {{Superseded|NewImage.ext}} and remove this tag. This tag should not be applied to photographs or scans. If this image is a diagram or other image suitable for vectorisation, please tag this image with {{Convert to SVG}} instead of {{BadJPEG}}. If not suitable for vectorisation, use {{Convert to PNG}}. For more information, see {{BadJPEG}}. |  |
Original upload log[edit]
The original description page was here. All following user names refer to en.wikipedia.
- 2005-02-04 20:27 Bhamer 906×286× (27604 bytes) {{PD-USGov-NASA}}
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 02:16, 28 September 2012 | | 906 × 286 (27 KB) | OgreBot (talk | contribs) | (BOT): Uploading old version of file from en.wikipedia; originally uploaded on 2005-02-04 20:27:29 by Bhamer |
| 07:52, 16 May 2005 |  | 800 × 253 (27 KB) | Xgarciaf~commonswiki (talk | contribs) | 400 year sunspot history, measured with Wolfer numbers. * 1790 to 1820: Dalton Minimum * 1645 to 1715: Maunder Minimum ---- Source: http://science.nasa.gov/ssl/pad/solar/images/ssn_yearly.jpg {{PD-USGov-NASA}} |
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