[{WikipediaArticle oldid='223592014'}]



[{VerifyArticle user='eertl' template='Standard' date='02. November 2014' page-date='2014' comment='Überprüft, nach Sexl, R.U., Kühnelt, H., Stadler, H., Jakesch, P., Sattlberger, E., Physik 5; Dobrinski, P., Krakau, G., Vogel, A., Physik für Ingenieure;' funder='53' }]
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!!!License Information of Images on page
||Image Description||Credit||Artist||License Name||File
| The Wikimedia Commons logo, SVG version.| Original created by Reidab ( PNG version ) SVG version was created by Grunt and cleaned up by 3247 . Re-creation with SVG geometry features by Pumbaa , using a proper partial circle and SVG geometry features. (Former versions used to be slightly warped.)| Reidab , Grunt , 3247 , Pumbaa| [{Image src='https://www.austria-forum.org/cc/images/slim/by-sa.png' alt='CC BY-SA 3.0' align='center' link='https://www.austria-forum.org/cc/by-sa-30.html' target='_blank'}]| Datei:Commons-logo.svg
| Erstes Keplersches Gesetz| Image:Kepler-first-law-de.svg by Stw| W!B: with Inkscape| [{Image src='https://www.austria-forum.org/cc/images/slim/by-sa.png' alt='CC BY-SA 3.0' align='center' link='https://www.austria-forum.org/cc/by-sa-30.html' target='_blank'}]| Datei:Kepler-first-law-math.svg
| Second law of Johannes Kepler| Die Autorenschaft wurde nicht in einer maschinell lesbaren Form angegeben. Es wird angenommen, dass es sich um ein eigenes Werk handelt (basierend auf den Rechteinhaber-Angaben).| Die Autorenschaft wurde nicht in einer maschinell lesbaren Form angegeben. Es wird Harp als Autor angenommen (basierend auf den Rechteinhaber-Angaben).| [{Image src='https://www.austria-forum.org/cc/images/slim/by-sa.png' alt='CC BY-SA 3.0' align='center' link='https://www.austria-forum.org/cc/by-sa-30.html' target='_blank'}]| Datei:Kepler-second-law.svg
| illustration for the derivation of Kepler's Second Law| Eigenes Werk| Dogbert66| [{Image src='https://www.austria-forum.org/cc/images/slim/by-sa.png' alt='CC BY-SA 3.0' align='center' link='https://www.austria-forum.org/cc/by-sa-30.html' target='_blank'}]| Datei:Kepler2.png
| Zwei Körper mit einem großen Masseunterschied und mit kreisförmigen Bahnen, die um ein gemeinsames Baryzentrum (rotes Kreuz) kreisen.| Eigenes Werk| User:Zhatt| [{Image src='https://www.austria-forum.org/cc/images/slim/publicdomain.png' alt='Public domain' align='center' link='https://www.austria-forum.org/cc/public-domain-10.html' target='_blank'}]| Datei:Orbit3.gif
| Log-log chart showing relation period and radius of planets in the solar system. From the graph it can be deduced that log 10 ⁡ T = 3 2 log 10 ⁡ R + c \displaystyle \log _10T=\frac 32\log _10R+c where c \displaystyle c is a constant and R \displaystyle R and T \displaystyle T are shown on the chart. This can be rearranged to give T 2 = k R 3 \displaystyle T^2=kR^3 where k \displaystyle k is a constant By equating centripetal force and gravitiational force , it can be shown that T 2 = 4 π 2 G M R 3 \displaystyle T^2=\frac 4\pi ^2GMR^3 where G \displaystyle G is the universal gravitational constant and M \displaystyle M is the mass of the sun thereby giving a theoretical expression for k \displaystyle k .| Eigenes Werk| Martinvl| [{Image src='https://www.austria-forum.org/cc/images/slim/by-sa.png' alt='CC BY-SA 4.0' align='center' link='https://www.austria-forum.org/cc/by-sa-40.html' target='_blank'}]| Datei:SolarSystem Radii and Period (math).svg
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