Dale Holt is a British amateur astronomer, known for his numerous discoveries of celestial objects from his private observatory in Church Stretton, Shropshire. His observing career has focused primarily on the search for supernovae, asteroids, and comets, leading to a significant number of discoveries that have contributed to international astronomical databases. His most significant work includes the discovery of hundreds of asteroids and dozens of supernovae. He is particularly famous as the discoverer of the periodic comet C/2009 O2 (Holt). For his fundamental contribution to astronomy, Holt has received prestigious accolades, including the British Astronomical Association's Merlin Medal and Gift and the renowned Edgar Wilson Award in 2010, conferred specifically for the discovery of his comet, a prize that celebrates the achievements of amateur astronomers in this field.