Fix gitignore

Update to release 9

Fix the size of the Sun and Moon

Published Python binding

Tidy up documentation

Tidy up documentation

Improve examples in README

Updated constellations stick figure README

Updated examples

Add option to clip a thin line around the edges of stars

Fix Docker version number

Fix download link for comet orbital elements

Compile single-threaded version

Fix example configuration files

Fix labelling of ephemerides at fixed intervals