For the amateur astronomer, “diamond,” “ruby,” “emerald,” and “pearl” evoke poetic descriptions of eclipses, stars, clusters, comets, and nebulae. They are also the traditional gemstones for the anniversary years of 10 (diamond), 15 & 40 (both ruby), 20 (emerald), and 30 (pearl). With over 40-years of experience designing and building astronomical products —many in production for decades — we have a few “gems” of our own celebrating notable anniversaries this year. In this blog post, we take a look at current production products that are celebrating anniversaries. Among these products are five Sky & Telescope “Hot Product” awardees (those awards only started in 1998 🙂 ).
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