Legacy Java applets/applications from 1997 Hippacos Catalogue website. Slightly updgraded to run as standalone java applications in newer JDKs (1.6 up)
It was real fun writting these in 1997 - and kind of fun to revisit in 2016 to get it running in an executable jar.
See the user documentaion here: http://www.cosmos.esa.int/web/hipparcos/java-tools
For more details on the Hipparcos Mission see: http://sci.esa.int/hipparcos/