This module provides a practical introduction to modern optical and infrared astronomy,including techniques applicable to observations with large ground-based telescopes andsatellites. There will be an emphasis on obtaining, understanding and utilising precisionphotometry and spectroscopy, including multiple observing runs with Monash Universityteaching telescopes. Students will learn to write their own computer codes to analyse theirobservational data, including calibrations, mitigating systematic errors, measuringuncertainties and fitting models to their observations.