At tonight’s meeting of the St. Louis Astronomical Society I learned of John Dobson’s recent death. John Dobson was widely known as the inventor of the homemade “Dobsonian” telescope and the co-founder of the Sidewalk Astronomers: perhaps the most famous and effective amateur astronomy outreach group in modern times. “Big Dob” light buckets are a … Continue reading John L. Dobson R.I.P. →