Tag Archives: hastings

How Did Hastings Design Our Objective?

Posted on February 1, 2021 by ST Editors

by John Church PART I I’ve often wondered what actual methods Charles Hastings used when designing the 6-1/4” objective now sitting at the business end of our fine refractor in Washington Crossing State Park.  I’ll start by quoting Hastings’ own … Continue reading →

Posted in February 2021, Sidereal Times | Tagged , , | Leave a comment

Update on the Hastings-Byrne Refractor

Posted on December 30, 2014 by ST Editors

by John Church At the December AAAP meeting, Gene Ramsey, Dave and Jen Skitt, and the writer reported their progress on a plan to upgrade the refractor mount to make it more usable for both club members and the general … Continue reading →

Posted in January 2015, Sidereal Times | Tagged , , , , | Leave a comment

History of the Hastings-Byrne 6-1/4 Inch Refractor

Posted on November 2, 2014 by ST Editors

by John Church As many current AAAP members may not be fully acquainted with the story of our fine 6-1/4 inch refractor, this history is presented so that the club may make an informed decision about its future use. Also … Continue reading →

Posted in November 2014, Sidereal Times | Tagged , , , , | Leave a comment

Geometrical Optics and the Hastings-Byrne Refractor

Posted on March 6, 2012 by ST Editors

By John Church Some years ago I analyzed the objective lens of the AAAP’s historic 6-1/4-inch Hastings-Byrne (H-B) refractor and published the results in Sky & Telescope magazine, along with a history of the telescope1. The readers of Sidereal Times … Continue reading →

Posted in March 2012, Sidereal Times | Tagged , , , | Leave a comment