diff --git a/ephem/doc/index.rst b/ephem/doc/index.rst index 8f5509c..7e123fe 100644 --- a/ephem/doc/index.rst +++ b/ephem/doc/index.rst @@ -120,7 +120,7 @@ But be warned that it has some rough edges! you get a list of ``None`` objects. * PyEphem generates positions using the 1980s techniques - popularized in |Meeus|_, + popularized in Jean Meeus’s *Astronomical Algorithms*, like the IAU 1980 model of Earth nutation and VSOP87 planetary theory. These make PyEphem faster and more compact @@ -130,8 +130,6 @@ But be warned that it has some rough edges! but users needing higher precision should investigate a more modern Python astronomy library like Skyfield or AstroPy. -.. |Meeus| replace:: Jean Meeus’s *Astronomical Algorithms* -.. _Meeus: https://www.willbell.com/math/mc1.htm .. _XEphem: http://www.clearskyinstitute.com/xephem/ Here’s more example code to illustrate how PyEphem works: