Clouds and clouds and even more clouds, what is happening with our weather?
Good then I have found a new part of the astronomy, scientific data. This is of course a bit outside amateur astronomy, but what to do when we never nowadays have a clear sky?
This time I took a look at the Kepler spacecraft and it's data. Normally used to find exoplanets. But that data can also be used to examine variable stars. One big plus, the observatory is out in space, no clouds!
One of the more exiting thing I did was to set together 44 months of data as a GIF movie. And by luck there was one very clearly seen variable star:
http://www.astrofriend.eu/astronomy/...ta-kepler.html
It was a bit tricky to get this to be correct because the satellite rotate 90 degrees every three months.
To read these files I need two new tools which found at NASA homepage. The DS9 Fits reader and Fv reader. The other tools was the ones I normally use, AstroImageJ, Fitswork and IrfanView. In the beginning I also used a hex binary editor, but didn't need it in the end.
/Lars