The Stellar Parallax and Aberration Launcher package is a self-contained file for teaching the concepts of parallax and aberration of light as they apply to astronomy. The file contains ready-to-run Easy Java Simulations (EJS) programs and curricular materials. The curricular materials consist of two activities for students. The first activity guides the student through an investigation of two forms of astronomical parallax (diurnal and annual) and Robert Hooke's early attempt to measure the annual parallax of stars. The second activity allows the student to examine James Bradley's failure to replicate Hooke's measurement, and how this failure led Bradley to the idea of the aberration of light. The activity helps students understand the effects of stellar aberration and how it masked stellar parallax.