Category Archives: Sidereal Times

Hubble Tension

Posted on November 2, 2024 by ST Editors

by S. Prasad Ganti Edwin Hubble was the legendary astronomer of the early twentieth century. Credited with the discoveries of the Andromeda galaxy and the expansion of the universe. With these, he brought the concept of galaxies to our lexicon. … Continue reading →

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The Curse is Broken!

Posted on November 2, 2024 by ST Editors

by Gene Allen For many reasons I’m sure, I have been unable to observe any comet, either visually or with photography, with the naked eye, binoculars, iPhone cameras, DSLRs, telescopes with eyepieces, or telescopes with cameras. This condition has prevailed … Continue reading →

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Chasing the Northern Lights: A Dream Come True!

Posted on November 2, 2024 by ST Editors

by Kathy Goff After waiting my whole life to see auroras, they finally came to me! Here are some of the better shots I got from my backyard in Crosswicks, NJ. I worked as a musician in Alaska for six … Continue reading →

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Astrophotos

Posted on November 2, 2024 by ST Editors

Oleg ShargorodskyC/2023 A3 (Tsuchinshan–ATLAS) cometLocation: Van Sant Airport Date: Wednesday, October 16th Equipment: iOptron CEM40 eq mount ASKAR FRA600 Quintuplet ASKAR 0.7x f/3.9 Full Frame Reducer ZWO ASl2600mc pro ZWO ASI 120MM-mini ZWO EAF ASIAIR Plus Filters: None Processing: Pixinsight, Lightroom IC63Location: Feasterville PAEquipment: iOptron CEM40 eq mount ASKAR FRA600 Quintuplet ASKAR … Continue reading →

Posted in November 2024, Sidereal Times | Tagged | Leave a comment

Starlink Astronomical Pollution

Posted on November 2, 2024 by ST Editors

This article is reproduced from https://www.astron.nl/starlink-satellites/ Observations with the LOFAR (Low Frequency Array) radio telescope last year showed that first generation Starlink satellites emit unintended radio waves that can hinder astronomical observations. New observations with the LOFAR radio telescope, the … Continue reading →

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Snippets

Posted on November 2, 2024 by ST Editors

compiled by Arlene & David Kaplan Ion engines could take us to the solar gravitational lens in less than 13 years, suggests paper Sending an object to another star is still the stuff of science fiction. But some concrete missions … Continue reading →

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From The Director

Posted on September 30, 2024 by ST Editors

by Rex Parker, PhD director@princetonastronomers.org Meeting Oct 8 at Peyton Hall.  We hope to see you in person at Peyton Hall on campus for the next monthly meeting on October 8 (7;30pm). The guest speaker is widely read author and … Continue reading →

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From The Program Chair

Posted on September 30, 2024 by ST Editors

by Victor Davis, Program Chair October Meeting The October, 2024 meeting of the AAAP will take place in Peyton Hall on the campus of Princeton University on Tuesday, October 8th at 7:30 PM. As usual, the meeting is open to … Continue reading →

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Minutes of the June 11, 2024 Meeting

Posted on September 30, 2024 by ST Editors

by Gene Allen, Secretary Director Rex Parker opened the meeting in Peyton Hall and on Zoom at 1930 with 38 in attendance. The first ten minutes of his introduction were missed because the university had failed to arrange for the … Continue reading →

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AAAP Store Has New Merchandise

Posted on September 30, 2024 by ST Editors

by  Rich Sherman The AAAP Store has been updated with new merchandise for the colder weather.Hoodies, crew neck sweatshirts, long-sleeves, winter beanies?  Yup, we gotthem.  We added some new items this year such as the full-zip fleece jacketswith embroidered logos, and a … Continue reading →

Posted in October 2024, Sidereal Times | Tagged , | Leave a comment

The Night Sky: Key to Experiencing and Preserving Earth’s Beauty

Posted on September 30, 2024 by ST Editors

By Razvan Dominic Ionescu Wanting to see the Milky Way again, and to reconnect with a childhood memory, in August 2019 I took my family on a trip to one of the darkest spots on the East Coast of the … Continue reading →

Posted in October 2024, Sidereal Times | Tagged | Leave a comment

Waves in the Cosmic Sea

Posted on September 30, 2024 by ST Editors

by S. Prasad Ganti BAO (Baryon Acoustic Oscillation) is a mouthful of an acronym. It interested me because of its relation to our baby Universe. That was a time when our Universe was less than 380,000 years old. With no … Continue reading →

Posted in October 2024, Sidereal Times | Tagged , , | Leave a comment

Harvest Moon Eclipsed!

Posted on September 29, 2024 by ST Editors

by Lisa Fanning Lunar eclipse photo from 9/17/24 Harvest Moon  Left: 9:31 PM ET partial penumbra eclipsed moonRight: 10:44 PM ET maximum eclipse (partial umbral)iPhone 13 through Swarovski Optik Spotting Scope.

Posted in October 2024, Sidereal Times | Tagged , | Leave a comment