ASTR 111 The Solar System and Its Origin
Fall 2025

Observing Project

Project description
Analysis due November 22
Reports due December 14

Using the 24-inch telescope and CCD camera at the Mees Observatory, you will observe Saturn and Neptune and their moons in order to measure the mass of these planets and validate Newton's law of gravity and Kepler's third law. All raw data can be found below. Please consult the shared Google spreadsheet for the processed data.

This is the

magic astro secret!

Data

When two data files are listed in the same row, the first is of just the planet, and the second is an exposure that includes the planet and its moon(s).

Date

Jupiter

Saturn