TrueSciPhi

Podcast Profile: Astronomy 161 - Introduction to Solar System Astronomy

Site • RSS • Apple Podcasts
47 episodes
2006 to 2009

Collection: Physics, Math, and Astronomy

Description (podcaster-provided):

Themes and summary (AI-generated based on podcaster-provided show and episode descriptions):

This podcast is an audio archive of an introductory, non–science-major astronomy course focused on the Solar System, recorded live at The Ohio State University. Across the lectures, it builds the basic “toolkit” for understanding astronomical observations, starting with scientific notation, measurement units, and the use of angles and coordinate systems to map positions on Earth and on the celestial sphere. It explains how the sky appears to move through daily rotation and annual revolution, connecting these motions to seasons, lunar phases, eclipses, and the foundations of clocks, time zones, and calendar systems.

A major throughline is how people developed and tested models of planetary motion. Historical material traces the transition from Greek geocentric frameworks to the Copernican heliocentric system, then to Kepler’s laws and Newton’s mechanics and universal gravitation. The course uses these ideas to interpret orbits, tides, and physical evidence for Earth’s rotation and motion around the Sun.

The podcast also introduces how astronomers learn about distant objects through light and matter: the inverse-square law, Doppler shifts, atomic structure, radioactivity and dating methods, blackbody radiation, and spectroscopy. It surveys observational tools such as ground-based, radio, and space telescopes.

The latter portion applies these concepts to comparative planetology, moving outward from Earth to the Moon, terrestrial planets, the gas and ice giants, and their moons and rings, as well as asteroids, meteoroids, comets, Kuiper Belt objects, and dwarf planets. It concludes by outlining methods for detecting planets around other stars and what early discoveries suggested about planetary system diversity.