File:Synoptic-solmag.jpg

Size of this preview: 800 × 369 pixels. Other resolutions: 320 × 148 pixels | 640 × 295 pixels.

Original file (1,300 × 600 pixels, file size: 192 KB, MIME type: image/jpeg)

This is a file from the Wikimedia Commons. Information from its description page there is shown below.
Commons is a freely licensed media file repository. You can help.

Summary

DescriptionSynoptic-solmag.jpg	English: Time-latitude diagram of the radial component of the solar magnetic field, averaged over successive solar rotation. The "butterfly" signature of sunspots is clearly visible at low latitudes. Diagram constructed (and regularly updated) by the solar group at NASA Marshall Space Flight Center.
Source	Page Reference - https://solarscience.msfc.nasa.gov/dynamo.shtml Direct Link - http://solarscience.msfc.nasa.gov/images/magbfly.jpg
Author	David Hathaway, NASA Marshall Space Flight Center

This 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 After doing so, please tag the JPEG version with {{Superseded|NewImage.ext}} and remove this tag.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}}.

Licensing

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.)

Original upload log

The original description page was here. All following user names refer to en.wikipedia.

2012-03-09 05:14 Speight 1280×600× (139534 bytes) updated version 2012-03
2011-04-22 04:04 孟柏民 1280×600× (113105 bytes) another update
2009-09-08 04:45 孟柏民 1024×600× (86331 bytes) updated version
2007-05-31 13:34 Paulchar 1024×600× (85088 bytes) Author: David Hathaway, NASA Marshall Space Flight Center (http://solarscience.msfc.nasa.gov), public domain.

File history

Click on a date/time to view the file as it appeared at that time.

	Date/Time	Dimensions	User	Comment
current	21:26, 12 May 2018	1,300 × 600 (192 KB)	Richhaddon	May 2018 Update, updated to .png version
	19:31, 6 July 2016	1,300 × 600 (195 KB)	Ianuslorenzo	Updated July 2016
	19:42, 3 April 2014	1,280 × 600 (94 KB)	孟柏民	Updated version
	04:27, 21 October 2012	1,280 × 600 (136 KB)	OgreBot	(BOT): Uploading old version of file from en.wikipedia; originally uploaded on 2012-03-09 05:14:38 by Speight
	04:27, 21 October 2012	1,280 × 600 (110 KB)	OgreBot	(BOT): Uploading old version of file from en.wikipedia; originally uploaded on 2011-04-22 04:04:13 by 孟柏民
	04:27, 21 October 2012	1,024 × 600 (84 KB)	OgreBot	(BOT): Uploading old version of file from en.wikipedia; originally uploaded on 2009-09-08 04:45:40 by 孟柏民
	21:34, 4 April 2008	1,024 × 518 (131 KB)	Abrev	Solar phases indicated.
	21:20, 4 April 2008	1,024 × 600 (83 KB)	Abrev	{{Information \|Description={{en\|Author: David Hathaway, NASA Marshall Space Flight Center (http://solarscience.msfc.nasa.gov), public domain.}} \|Source=Transferred from [http://en.wikipedia.org en.wikipedia] \|Date=2007-05-31 (original upload date) \|Author