2011-09-06
Tutorial: WCS tutorial using Kapteyn
The Kapteyn package provides a very nice tutorial aimed at beginners that introduces the basics of WCS (world coordinate system) transformations. The examples use the Kapteyn wcs module, but many of the concepts discussed are independent of the specific software.
http://www.astro.rug.nl/software/kapteyn/wcstutorial.html
2011-05-23
Tutorial: Practical Python for Astronomers
Practical Python for Astronomers is a series of hands-on workshops to explore the Python language and the powerful analysis tools it provides. The emphasis is on using Python to solve real-world problems that astronomers are likely to encounter in research.
The workshops immediately make use of the full suite of plotting, analysis, and file reading tools. Along the way elements of the Python language such as data types ...
1
2011-05-23
Resource: python4astronomers
Description: Practical Python for Astronomers
Homepage URL: http://python4astronomers.github.com/
Practical Python for Astronomers is a series of hands-on workshops to explore the Python language and the powerful analysis tools it provides. The emphasis is on using Python to solve real-world problems that astronomers are likely to encounter in research.
The workshops immediately make use of the full suite of plotting, analysis, and file reading tools. Along ...
1
2011-01-13
Snippet: Fix the WCS for a FITS image file
The code snippet which follows will allow you to fix an error in the astrometry of a FITS image. This is especially common with HST images because the astrometrical errors can be an arcsecond or more. The method used assumes that you have extracted the positions (RA, Dec) for at least 2 image point sources for which you have more accurate reference positions (e.g. from SDSS or ...
2010-11-14
Resource: pywcsgrid2
Description: pywcsgrid2
Homepage URL: http://leejjoon.github.com/pywcsgrid2/
Pywcsgrid2 is a python module to be used with matplotlib for displaying astronomical FITS images. It provides a custom Axes class (derived from mpl’s original Axes class) suitable for displaying FITS images. Its main functionality is to draw ticks, ticklabels, and grids in an appropriate sky coordinates.
- Provides a custom Matplotlib Axes class based on mpl_toolkits.axis artist ...
