Image:Sunspot with Earth Comparison.jpg
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| This is a file from the Wikimedia Commons. The description on its description page there is shown below.
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| Description |
Active region 9393 as seen by the MDI instrument on SOHO hosted the largest sunspot group observed so far during the current solar cycle. On en:30 March en:2001, the sunspot area within the group spanned an area more than 13 times the entire surface of the Earth. It was the source of numerous flares and en:coronal mass ejections, including one of the largest flares recorded in 25 years on en:2 April en:2001. Caused by intense en:magnetic fields emerging from the interior, a sunspot appears to be dark only when contrasted against the rest of the solar surface, because it is slightly cooler than the unmarked regions. Images courtesy of NASA. The author composited the images, added the annotation, and removed the date stamp from the inset. |
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| Source |
Originally from en.wikipedia; description page is/was here. |
| Date |
2007-02-18 (first version); 2007-02-19 (last version) |
| Author |
Original uploader was Greg L at en.wikipedia |
| Permission (Reusing this image) |
PD-LAYOUT; PD-USGOV-NASA. |
[edit] License information
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This file is in the public domain because it was created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (NASA copyright policy page or JPL Image Use Policy).
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[edit] Original upload log
(All user names refer to en.wikipedia)
- 2007-02-19 21:33 Greg L 1150×324×8 (258064 bytes) Active region 9393 as seen by the MDI instrument on SOHO hosted the largest sunspot group observed so far during the current solar cycle. On [[30 March]] [[2001]], the sunspot area within the group spanned an area more than 13 times the entire surface of
- 2007-02-18 22:32 Greg L 1150×324×8 (262391 bytes)
File history
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| Date/Time | Dimensions | User | Comment | |
|---|---|---|---|---|
| current | 22:21, 9 August 2007 | 1,150×324 (252 KB) | ToNToNi | ({{Information |Description=Active region 9393 as seen by the MDI instrument on SOHO hosted the largest sunspot group observed so far during the current solar cycle. On en:30 March en:2001, the sunspot area within the group spanned an area more t) |
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Metadata
This file contains additional information, probably added from the digital camera or scanner used to create or digitize it. If the file has been modified from its original state, some details may not fully reflect the modified file.
| Orientation | Normal |
|---|---|
| Horizontal resolution | 71 dpi |
| Vertical resolution | 71 dpi |
| Software used | Adobe Photoshop 7.0 |
| File change date and time | 13:29, 19 February 2007 |
| Color space | 65535 |
