What This Document Is
This lab manual, “Astrometry of Stars and Constellations” for AST 103 at the College of Staten Island CUNY, introduces the fundamental astronomical technique of astrometry – measuring the positions of celestial objects. It’s a practical exercise designed to build skills in sky chart reading, interpretation, and basic angular calculations. The lab utilizes an interactive online sky chart to explore how the appearance of the night sky changes based on location and time.
Why This Document Matters
This lab is crucial for students in introductory astronomy courses. Astrometry is the foundation for understanding the scale and structure of the universe, and how our place within it was discovered. It’s particularly relevant for anyone interested in observational astronomy, celestial navigation, or the history of astronomy. This lab provides hands-on experience with tools and concepts used by astronomers for centuries. It’s typically used early in an astronomy sequence to develop observational skills.
Common Limitations or Challenges
This document is a lab exercise, not a comprehensive textbook. It focuses on *applying* astrometric principles through a specific online tool. It doesn’t delve deeply into the theoretical underpinnings of coordinate systems or the complexities of astronomical measurements. Users will still need to understand basic astronomical concepts and have access to a computer with internet connectivity to complete the lab.
What This Document Provides
The full document includes: a detailed procedure for using the Sky & Telescope Interactive Sky Chart, specific tasks to complete within the chart (like identifying your location and sketching the night sky), questions prompting observation of star and planet movement over time, and a section dedicated to calculating the rate of stellar motion. It also contains a dedicated “Lab#3 Answer Sheet” for recording your findings. This preview *does not* include the answer sheet, the interactive chart itself, or the solutions to the questions posed within the lab. It also does not provide step-by-step instructions on how to use the sky chart.
