Tag Archives: davis

From The Program Chair

by Victor Davis, Program Chair Pay Attention!The May, 2026 monthly meeting of the Amateur Astronomers Association of Princeton will take place in Sherrerd Hall on the campus of Princeton University on Tuesday, May 12th at 7:30 PM. As usual, the … Continue reading

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The velocity calculations using frequency shift are not accurate

by William H Davis Why do the text books give different redshift equations for the observer stationary versus the observer in motion? Why do we use the equation for the observer stationary when the Earth is clearly moving through space … Continue reading

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From The Program Chair

by Victor Davis, Program Chair Productive ListeningThe April, 2026 monthly meeting of the Amateur Astronomers Association of Princeton will take place in Peyton Hall on the campus of Princeton University on Tuesday, April 14th at 7:30 PM. As usual, the … Continue reading

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From The Program Chair

by Victor Davis, Program Chair A Dynamic PresentationThe March, 2026 monthly meeting of the Amateur Astronomers Association of Princeton will take place in Peyton Hall on the campus of Princeton University on Tuesday, March 10th at 7:30 PM. As usual, … Continue reading

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From The Program Chair

by Victor Davis New Tools to Survey the Sky The February, 2026 monthly meeting of the Amateur Astronomers Association of Princeton will take place in Peyton Hall on the campus of Princeton University on Tuesday, February 10th at 7:30 PM. … Continue reading

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From The Program Chair

by Victor Davis, Program Chair A Musician Investigates Space WeatherThe AAAP’s first meeting of the new year 2026 will take place in Peyton Hall on the campus of Princeton University on Tuesday, January 13th at 7:30 PM. As usual, the … Continue reading

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Impact of Relativity on the Hubble Equation

by William H. Davis The Hubble equation  v=Ho/dv= H_o/d is commonly used to estimate distances to distant objects emitting light. The observations by a number of astronomers, even before Hubble, recognized a relationship between velocity and distance of nearby objects. … Continue reading

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From The Program Chair

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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From The Program Chair

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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