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Precession

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Radio Programs

On the Move The Sun circles through the zodiac September 5, 2015

Kochab A former pole star keeps watch June 13, 2015

Thuban Lining up an ancient wonder June 12, 2015

Moon in Balance Bringing a constellation into balance May 30, 2015

Moon and Spica Eyeballing some changes in the sky December 15, 2014

Venus and Antares Losing a “summer” star October 15, 2013

Aries Moving the point of the vernal equinox October 26, 2012

Future Beacons Lining up the North Stars July 22, 2012

Saturn and Spica Eyeballing some changes in the sky October 29, 2011

Featured Images

Current and future pole stars

Moving On July 23, 2012