Free (or very cheap!) Astronomy Software

[scott]

I would like to collect a thread of free or very cheap astronomy software that you have experience of using. Web resources are also welcome. I get many questions about which programs to use for what, and it would be great to have a resource to point people towards. I have started the list with a few things off the top of my head, anything posted below I will incorporate as we go along.

Planetarium Software
Stellarium - http://www.stellarium.org/
Cartes du Ciel - http://www.stargazing.net/astropc/
SkyORB -http://www.realtech-vr.com/skyorb/

FITS Viewing / editing
FITS Liberator - http://www.spacetelescope.org/projects/fits_liberator/
IRAF - http://iraf.noao.edu/
IRIS - http://www.astrosurf.com/buil/us/iris/iris.htm
fv FITS Viewer - http://heasarc.gsfc.nasa.gov/docs/software/ftools/fv/
The Gimp - http://www.gimp.org/

Other Cool Stuff
Celestia - http://www.shatters.net/celestia/
Microsoft Worldwide Telescope - http://www.worldwidetelescope.org/Home.aspx
Google Sky - http://www.google.com/sky/

[grendel]

image processing:-
The Gimp
http://www.gimp.org/
this can open .fits files too.
Grendel

[scott]

Added IRIS, a fully-featured and FREE astronomy image program for windows. It's got more features than some of the commercial software out there, and is pretty simple to use.

[berger144]

where can I get this software ?

[grendel]

where can I get this software ?

click on the links in the posts above and they should take you to the page for downloading the software.
Grendel

[_Craig_]

Oh! --be still my heart!

> http://photometrica.org/

> http://photometrica.org/About.htm

>** http://photometrica.org/video.htm

Craig