Parker spiral

Autor:

NASA

Shortlink:

https://www.czwiki.cz/b/bf21c

Zdroj:

Wikimedia Commons

Formát:

1120 x 864 Pixel (20656 Bytes)

Popis:

The Parker spiral structure of the average interplanetary magnetic field (IMF), shown in the solar equatorial plane for two solar wind speeds, 400 km/s and 2000 km/s. The actual direction of the IMF at any point may be inward or outward, but in either case, its field lines will on average be spirals as shown. Variations may be large, including significant components out of the plane of the figure.

Komentář k Licence:

Public domainPublic domainfalsefalse

	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.)
	Warnings: Use of NASA logos, insignia and emblems is restricted per U.S. law 14 CFR 1221. The NASA website hosts a large number of images from the Soviet/Russian space agency, and other non-American space agencies. These are not necessarily in the public domain. Materials based on Hubble Space Telescope data may be copyrighted if they are not explicitly produced by the STScI.[1] See also {{PD-Hubble}} and {{Cc-Hubble}}. The SOHO (ESA & NASA) joint project implies that all materials created by its probe are copyrighted and require permission for commercial non-educational use. [2] Images featured on the Astronomy Picture of the Day (APOD) web site may be copyrighted. [3] The National Space Science Data Center (NSSDC) site has been known to host copyrighted content. Its photo gallery FAQ states that all of the images in the photo gallery are in the public domain "Unless otherwise noted."

Licence:

Public domain

Credit:

http://sdo.gsfc.nasa.gov/mission/spaceweather.php

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