Hello!! It's Joseph

  from firelab github, based on Meeus;s astronomical algorithms  or from PyMeeus   step by step by geoastro   Modern Almagest from Richard Fitzpatrick NOAA online solar calculator    ISRO solar calculator NREL SPA online . Excellent input and output options  Almsun from Sybic, Poland Astronomical answers   Marsh blog   FreeCAD in 3D  , wiki Suncalc Suncalc.net online, or look into github, mentioned in stackexchange In which , Moon position is based on Louis Strous  astronomical answers  

  book on Amazon software implementation: go by Sonia Keys python by Pavolgaj  pymeeus in github pyplanets in github , and in pypi AA+ , from P J Naughter in C++, download link , base on Meeus, Lunar Ephemeris ELP2000 VSOP87 , VSOP2013 and more. PJ's wordpress ELP2000 implementation, output is x,y,z coordinate: Variar  Github Astrogreg Eran ofek 's moon  phase  1950 - 2060 OTOH javascript on NASA Fred Espanak eclipse website Meeus has many other interesting books too, eg Mathematical astronomical morsels series and Five Millennium catalog of solar eclipse catalog -1999 to 3000 Stephen Wolfram  , NDSolve and solar eclipse , RSS   Iris observatory, France  

    now in 4th edition on amazon   implemented on github by jfcarr in python, C, C++, Rust and other languages some history introduction on poliastro Steve Moshier's superb astronomical-almanac on Ubuntu , debian , his website , in javascript , gui   Jean Meeus: pls refer here pmonstrasio Sean E Urban's book: astronomical almanac  JPL Horizons provides interpolated results from spice kernels. The spice kernels contain blocks of interpolation coefficients using (usually if not always) Chebychev polynomials that allow spice users, other third party programs, and the Horizons website to calculate positions in-between the points where the coefficients are provided in the kernels. Elwood Downey of clearskyinstitute : XEphem github in python: From Brandon Rhodes: PyEphem, ( now depreciated ), based on XEphem starting 2007, and github repo, can be found in debian package study-pyephem and now replaced by Skyfield   - SFAlmanac-Py3 For satellite: Briswe...