File:Solar Middle-Edge Variation.png

Summary[edit]

English:

• Description: Middle-edge variation of the apparent intensity of the sun for 380 (far violet), 555 (yellow-green) and 780 nanometres (far red). The curves are calculated by using the formula

${\displaystyle {I(R) \over I(0)}={\frac {1+\beta {\sqrt {1-R^{2}}}}{1+\beta }}\ ,}$

where the relation between β and the wavelength λ is approximately given by

${\displaystyle \ln \beta =c_{0}+c_{1}\mu +c_{2}\mu ^{2}+c_{3}\mu ^{3}+c_{4}\mu ^{4}\ ;\quad \mu =\ln {\frac {\lambda }{10^{-10}\,\mathrm {m} }}}$

and

c0  = 6352,1488616
c1  =-2701,6346146
c2  =  431,30312867
c3  =  -30,621513866
c4  =    0,81542004069

• Author: SiriusB
• Source: Formula adopted from Helmut Scheffler, Hans Elsässer: Physik der Sterne und der Sonne, BI Mannheim, 1990, ISBN 3-411-14172-7. The formula for β has been fitted by me (also using data from diagrams from Unsöld, Baschek: Der neue Kosmos, Springer, Berlin, 1999).

Deutsch:

• Beschreibung: Mitte-Rand-Variation der Helligkeit der sichtbaren Sonnenscheibe (d. h. des Bildes der Sonne im Teleskop) für verschiedene Wellenlängen.
• Quellen: Helmut Scheffler, Hans Elsässer: Physik der Sterne und der Sonne, BI Mannheim, 1990, ISBN 3-411-14172-7. Die Formel für β ist selbst gefittet.

Autor: SiriusB

• See also: Image:Corona Brightness Profile.png

Licensing[edit]

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• to remix – to adapt the work

Under the following conditions:

• attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
• share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.

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