Banner photo credit: Sarah Fisher, through a 127mm Mak Happy belated St. Patrick’s Day! Saturday night, the Denver Astronomical Society held its monthly Open House at Chamberlin Observatory. This is where the DAS invites members of the general public to come on out and look through the historic, 125-year-old 20-inch Alvan Clark refractor. They can […]Read More March 18, 2019: The One Big Drawback to Working at a Telescope Store
Well, I’ve finally done it! I’ve finally bought my long sought after Celestron 9.25-inch optical tube assembly (OTA). I had been very patient, waiting and waiting for a used one to come up for sale at a reasonable price with the newer Starbright XLT coatings, as they have about 10-15% greater light transmission than the […]Read More January 8, 2018: The C9.25 Of My Dreams Is Here! And the Trapezium Falls to its Might!
I received my GSO dielectric diagonal from Agena on Friday the 19th. The weather reports were for clear skies, and I was eager to go out and have my compare/contrast contest between the old diagonal, which supposedly is only 90-91% reflective, and the new, which is supposed to be 99%. However, the weather reports were spectacularly […]Read More December 25, 2014 – Upgrading the Mak, Part 4 – Diagonals, ST-80