title: How to plot an image from a FITS file with real coordinates?
body: <p>The <a href="http://docs.astropy.org/en/stable/generated/examples/io/plot_fits-image.html" rel="nofollow noreferrer">astropy documentation</a> has an example on how to plot an image from a FITS file. The axis on the resulting plot correspond to the number of pixels, or data points. I would like the axis to indicate galactic coordinates instead. </p>
  
  <p>Note that the header of my FITS file indicates all of the information regarding the position of the image on the sky. How do I get the plot to show real coordinates rather that number of pixels ?</p>