Starplot

- Adds horizon plots, which show what the sky looks like from the horizon at a specific time and place
- Improved auto placement of constellation labels
- Separates styles and functions for constellation lines and labels
- Plots constellation lines and borders as a `LineCollection` to improve performance
- Adds option to suppress warnings from dependencies
- Adds legend labels to shape functions

v0.13.x

- Adds a `scale` factor to control sizing of all objects/text
- Adds an "auto" option for label offsets from markers
- Adds constellation lines to label collision detection
- Adds a `gid` to plotted objects to make exported SVGs easier to work with in external applications (e.g. Inkscape)
- Adds Flamsteed numbers to stars
- Adds all star names from IAU
- Adds the standard symbol for planetary nebulae
- Adds a border size/color property to label styles
- Bundles fonts: Inter & GFS Didot

v0.12.x

- Adds Shapely geometry to all sky object models, including support for `intersects` in `where` clauses
- Adds kwarg to map plots to allow custom clip paths
- Adds callables for star/dso labels
- Adds a `line` function for plotting lines
- Adds the standard marker for globular clusters (circle with a cross) and double stars
- Adds an ellipse marker for galaxies
- Adds colors for some DSO labels that were missing them in some style extensions
- Removed the kwarg `types` from `dsos`, so ALL DSO types are plotted by default
- [**v0.12.1**] Fixes issue with plotting the Milky Way when it consists of multiple polygons
- [**v0.12.2**] Allows tuples for line styles on polygons and adds geometry kwarg to polygon function
- [**v0.12.3**] Fixes bug with constellation names
- [**v0.12.4**] Makes labels on markers default to None
- [**v0.12.5**]
- Fixes bug with a few constellation ids
- Fixes bug with `zenith()` function on map plots

v0.11.x

- Replaces Tycho-1 stars with an abridged version of the [Big Sky Catalog](https://github.com/steveberardi/bigsky)
- Adds style option for a star's edge color (previously this was forced to be the background color)
- Adds cardinal direction labels to the horizon plotting function
- Removes behavior that automatically plots the cardinal direction border on zenith plots
- Adds function for plotting the zenith
- Adds support for downloading the full [Big Sky Catalog](https://github.com/steveberardi/bigsky) (2.5+ million stars)
- Various (minor) plotting optimizations
- Increases star sizes on map plots
- Adds TYC id to stars (if available)
- Adds the following projections: Robinson, Lambert Azimuthal Equal-Area
- Adds a constellation model, allowing you to selectively plot objects by their constellation
- [**v0.11.1**] Fixes default horizon style to be consistent with grayscale extension
- [**v0.11.2**] Adds `requests` as a required dependency
- [**v0.11.3**] Fixes bug with plotting the celestial equator
- [**v0.11.4**] Fixes bug with filtering DSOs by NGC/IC identifier

v0.10.x

- Adds function for plotting text
- Adds `where` kwarg to star/DSO plotting functions to selectively plot stars
- Adds easier way to override style properties on plotting functions - thanks to Graham Schmidt
- Adds function to plot the Sun - thanks to Graham Schmidt
- Adds option to illustrate the Moon's phase - thanks to Graham Schmidt
- Adds `objects` property to plots, which stores lists of objects that have been plotted
- Adds object finder helpers
- Adds customizable anchor points for text labels
- Adds Pluto as a planet :)
- Fixes clipping issues with polygons
- Fixes a few issues with gridlines
- [**v0.10.1**]
- Fixes bug with plotting planets as true apparent size
- Adds lat/lon kwargs to Sun/Moon/Planet models to allow _apparent_ RA/DEC calculation
- [**v0.10.2**] Fixes a few issues with plotting legends

v0.9.x

- Added perspective projections (Orthographic, Stereographic) to map plots - many thanks to bathoorn
- Zenith plots are now a type of projection for map plots, to support plotting the Milky Way, constellation borders and more - many thanks to bathoorn
- Removed the visible style property and instead now you control what is plotted by calling functions on the plot (e.g. p.stars(mag=8)) to be more consistent with other plotting frameworks and allow more control over what's plotted and how. For example, now you can do things like plotting very bright stars with a different marker (and sizes, etc) than dimmer stars.
- Optional callables for calculating star size/alpha/color when plotting stars
- Nebula outlines! via OpenNGC
- Stars are now plotted in order of their calculated size, which prevents "bigger" stars from hiding "smaller" stars
- Added more marker symbols and style extensions
- [**v0.9.1**] Fixes bug with plotting moon and planets as their true size

v0.8.x