Category Archives: Sidereal Times

From the Director

Next meeting by Zoom on April 13 at 7:30pm.  While we won’t get together in person at Princeton’s Peyton Hall for meetings this spring, recent vaccination progress gives hope that it may be possible next fall.  For now AAAP will … Continue reading

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From the Program Director

by Victor Davis The April 2021 meeting of the AAAP will take place (virtually) on Tuesday, April 13th at 7:30 PM. (See How to Join the April Meeting below for details). This meeting is open to AAAP members and the … Continue reading

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Minutes from the March 9, 2021 Members General Meeting (Online)

by John Miller, Secretary ●  The meeting convened at 7:30 PM via Zoom and Yahoo (online).  There were initially about 52 Zoom attendees. ●  Rex Parker briefly reviewed “Galaxy Season” as seen from our latitude. He included a few Parker … Continue reading

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John Herschel and his Lens Designs

by John Church Charles Hastings once wrote that the lens which is now on our Hastings-Byrne refractor was similar in design to the types described by John Herschel (1792-1871). He also mentioned that such lenses do not greatly differ from … Continue reading

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Snippets

compiled by Arlene & David Kaplan The Most Intimate Portrait Yet of a Black HoleThe Event Horizon Telescope collaboration, an international team of radio astronomers that has been staring down the throat of a giant black hole for years, on … Continue reading

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