A Tidy Physics Engine for Building and Visualizing Orbital Simulations R package orbitr version 0.2.0 A lightweight, fully vectorized N-body physics engine built for the R ecosystem. Simulate and visualize complex orbital mechanics, celestial trajectories, and gravitational interactions using tidy data principles. Features multiple numerical integration methods, including the energy-conserving velocity Verlet algorithm (Verlet (1967) <doi:10.1103/PhysRev.159.98>), to ensure highly stable orbital propagation. Gravitational N-body methods follow Aarseth (2003, ISBN:0-521-43272-3). Software Depends: R (>= 4.1.0) Imports: dplyr, ggplot2, Rcpp, tibble LinkingTo: Rcpp Suggests: plotly, gganimate, gifski, magick, knitr, rmarkdown, pkgdown, testthat (>= 3.0.0) Dave Rosenman <dave.rosenman.data@gmail.com> Comprehensive R Archive Network (CRAN) Dave Rosenman [aut, cre] MIT + file LICENSE (https://CRAN.R-project.org/package=orbitr/LICENSE) 2026-04-21 application/tgz https://CRAN.R-project.org/package=orbitr doi:10.32614/CRAN.package.orbitr