Necessary Facts

Observations, reports, and discoveries that are true of necessity because they are perceivable and reasonable, empirical and logical, evidentiary and rational, synthetic and analytic. Truths are objective statements.

Tuesday, June 21, 2022

Xi Scorpii

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The otherwise visibly unremarkable star Xi Scorpii is in truth a set of five, two pairs traveling together and a fifth member orbiting one o...
Saturday, June 18, 2022

Messier 13: The Hercules Cluster

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Last night, I learned how to find the Hercules Cluster. I selected Messier 13 from a menu on a Celestron AVX computerized telescope mount , ...
Tuesday, June 14, 2022

The Whole Nine Yards

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We bought this home in December 2021 in part because of the above-ground swimming pool. As it turned out, we bought a pig in a poke. The poo...
Sunday, May 29, 2022

New Telescope Familiar Sights

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As the proud owner of a 130-mm (5-inch) Newton reflector with tabletop Dobsonian mount from Astronomers Without Borders, I have been taking ...
Tuesday, May 24, 2022

Limerick

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Unlike theorems in geometry and proofs in algebra the forms of speech and literature are open to ad hoc change by their users. Therefore, ul...
Monday, May 23, 2022

Library Telescope Project

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About a dozen local astronomy clubs have arranged for their city libraries to acquire telescopes that can be lent to patrons. The story come...
Sunday, May 22, 2022

Product Review: Bresser EQ3 and 70mm f/10 Refractor

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Keep the telescope. Throw away the mount.   This instrument is an embarrassment to the tradition of German engineering. Like very many other...
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Michael E. Marotta
Experienced freelance technical writer always looking for more work. Author of over 300 newspaper, magazine and journal articles on topics of business, technology, and society.
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