Package: galisats
Title: Configuration of Jupiter's Four Largest Satellites
Version: 2.2.0
Authors@R: person(
                 "Lech", "Jaszowski",
                 email = "lech.jaszowski@interia.pl",
                 role = c("aut", "cre", "cph"),
                 comment = c(ORCID = "0009-0001-4748-9603")
                 )
Description: Calculate, plot and animate the configuration of Jupiter's four
    largest satellites (known as Galilean satellites) for a given date and time
    (UTC - Coordinated Universal Time).
    The galsat() function returns numerical values of the satellites’ positions.
    x – the apparent rectangular coordinate of the satellite with respect to the
    center of Jupiter’s disk in the equatorial plane in the units of Jupiter’s
    equatorial radius; X is positive toward the west,
    y – the apparent rectangular coordinate of the satellite with respect to the
    center of Jupiter’s disk from the equatorial plane in the units of Jupiter’s
    equatorial radius; Y is positive toward the north.
    For more details see Meeus (1988, ISBN 0-943396-22-0) "Astronomical Formulae
    for Calculators".
    The galsat_animate() function creates an animation of the Galilean
    satellites' positions. You provide the starting time, duration, the time
    step between frames, and the pause between frames.
    The function delta_t() returns the value of delta-T in units of seconds.
License: MIT + file LICENSE
Encoding: UTF-8
RoxygenNote: 7.3.3
Imports: graphics, png
URL: https://lechjaszowski.github.io/galilean_satellites/
NeedsCompilation: no
Packaged: 2025-09-27 07:42:03 UTC; lechj
Author: Lech Jaszowski [aut, cre, cph] (ORCID:
    <https://orcid.org/0009-0001-4748-9603>)
Maintainer: Lech Jaszowski <lech.jaszowski@interia.pl>
Repository: CRAN
Date/Publication: 2025-09-27 08:00:02 UTC
Built: R 4.6.0; ; 2026-04-26 18:40:58 UTC; unix
