An introduction to observational astrophysics Chapter 1 Introduction Chapter 2 The Nature of Light Chapter 3 The Telescope Chapter 4 Time Chapter 5 Spheres and Coordinates Chapter 6 Catalogues and Constellations Chapter 7 The Astronomical Detector Chapter 8 Imaging Chapter 9 Image Reduction and Processing Chapter 10 Photometry Chapter 11 High Precision Differential Photometry Chapter 12 Solar Astronomy Chapter 13 Spectrography Chapter 14 Astrometry Glossary Index. The observational component of astronomy is an exciting and vital part of any astrophysics degree. With the advent of low cost astronomical cameras and remote and robotic operation more students than ever have the opportunity to observe and perform observatory research. This updated and fully corrected textbook provides a comprehensive overview of practical observing techniques for undergraduate astrophysics courses. The chapters introduce students to the basics of the field before delving into telescope types the nature and operation of the astronomical camera imaging techniques and reduction photometry and spectrography and solar and radio observations. The second edition covers the latest research on calibrating the telescope camera observatory system. It contains revised information on all available astronomy equipment including filters webcams sensors and telescope designs. Also included is an entirely new chapter on exoplanet transit measurements. The textbook’s practical approach will guide readers from basic first year techniques to those required for a final year project.