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README.md

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 # PicPlanner
 An GTK application for photographers using GNU Linux or especially Linux phones. It can be used to calculate the position of the Sun, Moon and Milky Way in order to plan the position and time for an photograph.
 
+## The Idea
+People who love to photograph know the biggest problem is being at the right spot to the right time.
+Therefore landscape pictures should be pland bevore visiting the place of choice. To plan the location it is important to know the positon of the sun, moon and sometimes also the milky way.
+Where to find the sun at which time is most of the time easy to guess but when is the sunset? And for the milky way normaly nobody knows where to find it in the night sky at which time at a spesific location.
+This small programm should answer all these questions.
+
+## Plan
+1. Create a basic GUI -- Partly done
+2. Create the basic web search -- Partly done
+3. Calculate the center of the milky way at a specific time -- At work
+4. Calculate sunrise and sunset at a spesific day -- Still trying to find appropriet formulas 
+5. Find the position of the moon at a spesific time
+6. Present these information in a nice plot
+7. Implement "smarphone functionality" e.g. find location via GPS and present a compas to adjust the camera correctly
+8. Insert open street map to plot everything direktly on a real map
+9. Make everything "real time"; Slide through time bar to see changes on the map instantly
+
 ## Formulas used
 
 Most of the formulas used are explained in detail directly inside the code.
+Some of these formulas are from the excelent book of Jean Meeus "Astronomical Algorithms". Others are from scientific papers or combined by myselfe.
 
+## Libraries
+
+GTK is used to create the GUI.
 Libhandy is used to fit on small screens.
+Curl (and Json) is used to connect to nominatim to translate searched words into coordinates.