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I am replicating the question: http://mathematica.stackexchange.com/questions/86903/contour-plot-cartesian-using-spherical-coordinates-postions?noredirect=1#comment237517_86903 I' ve been trying to make a contour plot and I learned about Barnes...
Dear friends, I have a lot of Raw images in .NEF format (NIKKON). So, I read the section : [http://reference.wolfram.com/language/LibraryLink/tutorial/ImageProcessing.html][1] But I did not understand how implement these libraries in order to...
I noticed that all important "Geoprojections" are available in projections for spherical reference models: GeoProjectionData function. 1 - How can I use the sinusoidal projection using astronomical data ? I want to use the frames of this...
After mathematica 10.0 release, I found the new interesting function association, dataset, etc. I really did not have much pay attention until now, as I was always working with theoretical things.. Well, I am working hard through huge amount of...
I tried Import a avi file but the frames do not appears. I use Math 10,running in windows 8, Asus, i7, 4 gb. The manipulate runs, but no frames. The link for the video: https://dl.dropboxusercontent.com/u/37906119/M20141102_053738_PET_1.avi
Dear Friends, I intend put some demonstrations of celestial mechanics and fundamental astronomy in the following site: bramon.org It is an organization of amateur astronomer that are doing a great job in meteor detection and astrometry. So as I...
Folks, I did not find julian date conversion in mathematica 10, so I did a very simple function to evaluate it, using http://scienceworld.wolfram.com/astronomy/JulianDate.html informations. JD[houratu_, minutetu_, secondstu_, day_, month_,...
Hi, I have to get parallaxes position of a lot of stars form Vizier Catalog: http://vizier.u-strasbg.fr/viz-bin/VizieR-2; I wonder if it would be possible to use URLfetch function like that: ...
I did an downgrade from OpenSuse 13.2 to 13.1 (more stable version), and now I am not able to connect wolfram cloud. ![enter image description here][1] [1]: /c/portal/getImageAttachment?filename=ConnectError1.png&userId=33625
I took a photo  using an  "analogic camera", reflex. ~1 min expos. it was a foggy night,  storms in the horizon, and I was testing several exposures time.  My goal is the little red spot in the center of the image. Also, there is blue points up...