Tuesday, March 30, 2021

MARIA MITCHELL QUARTER DOLLAR CIRCULATING COMMEMORATIVE

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Maria Mitchell deserves to be honored on the newest series of U.S. circulating commemorative quarter dollars, 2022-2025. She was the first A...
Wednesday, March 17, 2021

An Online Class in Astrophysics

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I recently completed a survey in astrophysics offered by the École polytechnique fédérale de Lausanne through edX, a program created by Harv...
Saturday, March 6, 2021

Unforgotten Sisters: Early History of Women Astronomers

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Most readers will recognize Hypatia of Alexandria and Hildegard von Bingen. However, En-Hedu-Anna of Babylon, Theano the Pythagorean, and Wa...
Friday, March 5, 2021

Emily Levesque and the Last Stargazers

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This book is mislabeled. If observational astronomy is in any danger as a profession it is from overpopulation as researchers line up to use...
Monday, March 1, 2021

In Like a Lion

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Sunny has adapted well to the routine. She no longer exhibits so many symptoms of PTSD. Now she likes being petted. She is still an indoor ...
Sunday, February 21, 2021

Winter Happened

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On Monday, 8 February, I saw an early honeybee on an early dandelion. On the 15th, temperatures were in the single digits. The state of Texa...
Sunday, February 7, 2021

BINARY STAR PROJECT

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Finding binary stars has been fun and rewarding on several levels. First is the satisfaction from perceiving something that is not obvious t...
Saturday, February 6, 2021

Rachmaninoff

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My mother was more for Chopin and Liszt and we had a lot of that, especially as sheets and books, but also on 33-1/3 LPs, eventually in ster...
Tuesday, February 2, 2021

The Audacity of Entrepreneurship

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"What comes out of a team or a committee is the most daring idea that the least daring man can accept." John Arnold. "Space, ...
Sunday, January 31, 2021

An Amateur Astronomer’s Credo

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The January 2021 issue of  Astronomy  magazine presented “Studying Galaxies with Amateur Images” by David Martinez-Delgado and R. Jay GaBany...
Saturday, January 23, 2021

Against Dark Skies

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We do not have the same perceptions with light that we do with sound. You can close your eyes. You cannot close your ears. So, we have laws ...
Thursday, January 21, 2021

Baader-Planetarium Micro-Guide Reticle

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This eyepiece can serve any amateur astronomer who wants to make their own measurements of separations and positions of binary stars or the ...