Astronomy: Effemeridi (Ephemeris)

[salvomic]

New improved Version:

New routine to calculate the most important Asteroids (and ex Comets): data about eccentricity, inclination, semi-major axis, mean anomaly, argument of perihelion, node, right ascension and declination, longitude and latitude, passage through perihelion, distance from Earth and Sun, diameter (approximate), magnitudo and albedo.
If instead of anomaly the user knows the date of passage at perihelion, he could calculate anomaly with the function anomaly() that requires a (semi-major axis), eccentricity, date of passage to the perihelion and actual date list, to give mean, eccentric and true anomaly.
For now included four series (the most brilliant and/or important or famous):
1 Ceres, 2 Pallas, 3 Juno, 4 Vesta, 5 Astrea, 6 Hebe, 7 Iris, 8 Flora, 9 Metis;
15 Eunomia, 18 Melpomene, 19 Fortuna, 20 Massalia, 22 Kalliope;
243 Ida, 433 Eros, 437 Rhodia, 1566 Icarus, 1620 Geographos, 1862 Apollo, 2060 Chiron, 2062 Aten;
dwarf planets (Ceres is in the first series, Pluto among planets): Haumea, Eris, Makemake,
plus a function to calculate an elliptical orbit given eccentricity, inclination, semi-major axis, anomaly, argument of perihelion and Node (from Almanac or online ephemerides): the default is set on comet 2P/Encke (data 2014 August)...
Passage through perihelion and aphelion for planets (for now approximate for Neptune, not so easy to treat and Pluto, but better than Neptune in some way).
Exported variables for passage through perihelion and orbital period for planets, bodies with elliptical and parabolic motion (comets...).
Included also two functions to calculate passage through perihelion given anomaly or anomaly given passage date...
Function to calculate passage through nodes (ascending and descending) for planets, elliptic and parabolic bodies...
Function to calculate perigee and apogee of the Moon (with relatives parallaxes) for a given date and passages through the nodes of the Moon.

Some data are still approximated (better precision coming, but sometimes isn't easy to do better, i.e. with slow farthest planets...) but very interesting.

Enjoy!

Salvo

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new uploaded zip file
Version: 2.9
Date: 2015, July 29