Category Archives: March 2012

The Rosette Nebula

Posted on March 6, 2012 by ST Editors

Astrophotography – An Inside Look Years ago I had offered interested members a SIG (special interest group) on getting into astrophotography. Over the last year, I have not been active in imaging. Well, as it is starting to warm up, … Continue reading →

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Snippets

Posted on March 6, 2012 by ST Editors

compiled by Bryan Hubbard NASA’S Chandra Finds Fastest Wind from Stellar-Mass Black Hole Published: Tuesday, February 21, 2012 – 16:33 in Astronomy & Space Astronomers using NASA’s Chandra X-ray Observatory have clocked the fastest wind yet discovered blowing off a … Continue reading →

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Geometrical Optics and the Hastings-Byrne Refractor

Posted on March 6, 2012 by ST Editors

By John Church Some years ago I analyzed the objective lens of the AAAP’s historic 6-1/4-inch Hastings-Byrne (H-B) refractor and published the results in Sky & Telescope magazine, along with a history of the telescope1. The readers of Sidereal Times … Continue reading →

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Opportunity Begins Year Nine on Mars

Posted on March 6, 2012 by ST Editors

by Dr. Ken Kremer NASA’s resilient Opportunity robot has begun her ninth year roving around beautiful Earth-like Martian terrain where potentially life sustaining liquid water once flowed billions of years ago. Opportunity celebrated her eighth anniversary on the red planet … Continue reading →

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