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Astronomy Day 1984 (May 5) in Kingston, Ontario. Hein van Asperen with his home-made 10" Newtonian on Dobsonian mount. Leo Enright is on the right.
Astronomy Day 1984 (May 5) in Kingston, Ontario. Hein van Asperen with his home-made 10" Newtonian on Dobsonian mount. Leo Enright is on the right.
