Category Archives: Sidereal Times

From The Program Chair

Posted on December 2, 2025 by ST Editors

by Victor Davis, Program Chair The Universe in a ComputerThe December, 2025 meeting of the AAAP will take place in Peyton Hall on the campus of Princeton University on Tuesday, December 9th at 7:30 PM. As usual, the meeting is … Continue reading →

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Observatory Report

Posted on December 2, 2025 by ST Editors

by Dave and Jennifer Skitt, Observatory Co-Chairs Solar Observing on November 29, 2025 Upon hearing of the Grand Re-Opening of the Nature Center in Washington Crossing State Park on Thanksgiving weekend, I wondered what AAAP could do to entice park … Continue reading →

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From The Astrophotography Group

Posted on December 2, 2025 by ST Editors

by Michael DiMario, Astrophotography Chair Bubble Nebula NGC7635 taken by Michael DiMarioTelescope:       Celestron C9.25 Edge HD at FL 1645mm f7.0Mount:             Losmandy GM811GExposures:       229 subframes @ 300 sec each over 5 nights for 19 hours of integration; ASI2600MC-P; Optolong L-Ultimate filterProcessing … Continue reading →

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The Perfect Machine

Posted on December 2, 2025 by ST Editors

by S. Prasad Ganti “The Perfect Machine” is the name of a book written by Ronald Florence. It covers the design, construction and the installation of the 200 inch Hale telescope at the Mount Palomar observatory, close to San Diego … Continue reading →

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Snippets

Posted on December 2, 2025 by ST Editors

compiled by Arlene & David Kaplan Fighting for ‘The Right to Night’ Under Starry, Rural Skies On a Saturday in September in Michigan’s Upper Peninsula, a dozen people navigated through the woods to the shore of Lake Superior, where the … Continue reading →

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From The Director

Posted on November 4, 2025 by ST Editors

by Rex Parker, PhD director@princetonastronomy.org November 11, 2025, Meeting on Campus.  With the close of a very successful season of public observing nights at Washington Crossing Observatory, our main venue for several months will be the evening meetings at Peyton … Continue reading →

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From The Program Chair

Posted on November 4, 2025 by ST Editors

by Victor Davis The Universe in a Computer The November, 2025 meeting of the AAAP will take place in Peyton Hall on the campus of Princeton University on Tuesday, November 11th at 7:30 PM. As usual, the meeting is open … Continue reading →

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Minutes of the October 14, 2025 Meeting

Posted on November 4, 2025 by ST Editors

by Gene Allen, Secretary Director Rex Parker opened the meeting in Peyton Hall at 1931 with 25 attending. He reported: Power has finally been restored to the observatory. Members who are exploring Electronically Assisted Astronomy, EAA, are now formally invited … Continue reading →

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Translating Faust: Science, Fate, and Free Will

Posted on November 4, 2025 by ST Editors

by John Church As a chemistry major planning to go to graduate school, I took four years of German.  In my final year we read Goethe’s masterpiece “Faust,” based on the legend of a Doctor Faust who sold his soul … Continue reading →

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Are Velocity calculations from Spectral Measurements creating the Hubble Tension and Dark Energy theories?

Posted on November 4, 2025 by ST Editors

by William H. Davis jr. Astronomers collect and use spectral shift data to estimate the velocity of objects or photon emitters (E) beyond Earth. This spectral data is one of the most important and often the only tool used to … Continue reading →

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