Daily Archives: January 29, 2026

Drawings of comets’ appearances date back at least two thousand years, making the study of comet 'morphology' among the oldest endeavors in all of astronomy. While many newer techniques have been invented to study comets, assessment of their morphology continues to hold scientific value today. Dr. Matthew Knight will discuss how he uses specialized 'narrowband' comet filters on modestly sized telescopes to infer properties of the nuclei of active comets.