Tag Archives: science

The Legacy of Gaia 

Posted on February 3, 2026 by ST Editors

By Prasad Ganti Thanks to Surabhi for pointing me to this topic from the Astronomy magazine. I collected some more information and summarized the same here. Summarizing and packaging information helps me learn. The Gaia spacecraft was launched in 2013 … Continue reading →

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The Celestial Transients

Posted on January 3, 2026 by ST Editors

by S. Prasad Ganti A recent article in Scientific American about the Celestial transients piqued my mind. To quote “Transients are astronomically sized objects that change on human timescales—in seconds, hours, days. Transients, which are astronomical objects that appear suddenly … Continue reading →

Posted in January 2026, Sidereal Times | Tagged , , , , , , , | Leave a comment

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 Princeton to Pleiades: Adventures with a Smart Telescope

Posted on October 5, 2025 by ST Editors

by Robert Vanderbei, Assistant Director I’ve been having lots of fun with my Seestar S30 smart telescope. Over the last week or so I took pictures of the Andromeda galaxy, the Orion Nebula, and the Pleiades. As I’m sure many/most … Continue reading →

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The North Star of Indian Cosmology

Posted on June 3, 2025 by ST Editors

by S. Prasad Ganti Famed Indian astrophysicist and cosmologist Dr. Jayant Narlikar has recently passed away. What follows is my tribute to this great scientist. Narlikar worked under the tutelage of Fred Hoyle, the eminent British astrophysicist and cosmologist at … Continue reading →

Posted in June 2025, Sidereal Times | Tagged , , , , , | Leave a comment

Snippets

Posted on March 2, 2025 by ST Editors

compiled by Arlene & David Kaplan Astronomers Have Discovered a New Hidden Galaxy Near Andromeda—And It’s Unlike Anything Seen Before A previously unknown dwarf galaxy has been discovered on the outskirts of the Andromeda Galaxy, adding to the growing list … Continue reading →

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