Category Archives: Sidereal Times

A gravitational challenge

Posted on May 1, 2019 by ST Editors

by John Church The AAAP has members who enjoy science and math challenges. I invite all who are interested to try their hands at this one. Consider two identical, homogeneous, nonmagnetic cubes, each having a mass of 1 kg, measuring … Continue reading →

Posted in May 2019, Sidereal Times | Tagged | Leave a comment

amateur tested

Posted on May 1, 2019 by ST Editors

by Thedore R. Frimet save the universe one life at a time I am getting ready to embark on a mission. A deep space, fly-by, that has been tested, and retested by the best of the best, of the best. … Continue reading →

Posted in May 2019, Sidereal Times | Tagged | Leave a comment

When enough is enough

Posted on May 1, 2019 by ST Editors

by Theodore R. Frimet to teet, or not to teet? that is the question I had entered an order into eBay a few weeks ago. It was for a slide study on meiosis. The seller had access to slides, presumably … Continue reading →

Posted in May 2019, Sidereal Times | Tagged | Leave a comment

The picture of a black hole

Posted on May 1, 2019 by ST Editors

by Prasad Ganti In January 2019, I wrote an article on radio astronomy in which I mentioned a recent book titled “Einstein’s Shadow” by Seth Fletcher. The book talked about photographing black holes and why it is very difficult to … Continue reading →

Posted in May 2019, Sidereal Times | Tagged | Leave a comment

Snippets

Posted on April 23, 2019 by ST Editors

compiled by Arlene & David Kaplan First ever black hole image released Astronomers have taken the first ever image of a black hole, which is located in a distant galaxy. It was captured by the Event Horizon Telescope (EHT), a … Continue reading →

Posted in May 2019, Sidereal Times | Tagged , | Leave a comment

From the Director

Posted on April 1, 2019 by ST Editors

      by Rex Parker, Phd director@princetonastronomy.org From Stone to Star. The relationship of stars to common earthly things is closer than one might think. Advances in astrophysics over the past century have revised the story of geology by … Continue reading →

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From the Program Chair

Posted on April 1, 2019 by ST Editors

by Ira Polans The April meeting of the AAAP will be held on the 9th at 7:30PM in the auditorium (Room 145) of Peyton Hall on the Princeton University campus. The featured talk is by Gino Segre and Bettina Hoerlin … Continue reading →

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Outreach Blotter

Posted on April 1, 2019 by ST Editors

by Gene Allen, Outreach Chair David Letcher, our former, longtime Outreach Chair, served as Event Lead for an Outreach Event in Hopewell on March 22. His report on the Event is as follows: “Well, we continued our tradition of giving … Continue reading →

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March 2019 meeting minutes

Posted on April 1, 2019 by ST Editors

by Jim Poinsett, Secretary Minutes of the March 2019 Meeting of the Amateur Astronomers Association of Princeton Rex opened the meeting and welcomed our new members. He then introduced Ira, the Program Chair. Ira introduced the evening’s speaker Dr. Scott … Continue reading →

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The Earth as a Peppercorn

Posted on April 1, 2019 by ST Editors

by Victor Davis The Earth as a Peppercorn Seeking a “Gee Whiz” Moment With spring comes an upwelling in our club’s outreach activities, from Friday night star parties at the observatory to on-site presentations at schools, libraries, and other venues. … Continue reading →

Posted in April 2019, Sidereal Times | Tagged | 1 Comment

The weight of Water

Posted on April 1, 2019 by ST Editors

by Theodore R. Frimet The Weight of Water fundy tides, tidal friction, and Einstein I ordered a copy of the Observer’s Handbook 2019, back a few months ago. I was pretty stoked that The Royal Astronomical Society of Canada (RASC) … Continue reading →

Posted in April 2019, Sidereal Times | Tagged | Leave a comment

How vast is our Solar system ?

Posted on April 1, 2019 by ST Editors

How vast is our solar system ? We know that the Sun is at the center of the solar system. How far does it extend ? The outer edge of the solar system has been extending since the ancient times … Continue reading →

Posted in April 2019, Sidereal Times | Tagged | Leave a comment