2014 Northfield, MN – Goodsell Observatory

2014 Northfield, MN – Goodsell Observatory

photo Goodsell Observatory ca. 1905 The Prairie‚Äôs Starry Messenger The Antique Telescope Society’s23nd Annual Convention On September 26 through September 29, 2014, the Antique Telescope Society will hold its 23nd Annual Convention at Goodsell Observatory on the...