What's Changed
* Default to WCS disc parameters when initialising `Observation` by ortk95 in https://github.com/ortk95/planetmapper/pull/147
* Adding backplanes for ring plane coordinates (and associated methods) by ortk95 in https://github.com/ortk95/planetmapper/pull/148
* Adding `BasicBody` to allow plotting of minor satellites, adding method to add all satellites as bodies of interest by ortk95 in https://github.com/ortk95/planetmapper/pull/150
* Update version by ortk95 in https://github.com/ortk95/planetmapper/pull/151
**Full Changelog**: https://github.com/ortk95/planetmapper/compare/v1.2.2...v1.3.0