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    Re: True North and Precession
    From: Frank Reed
    Date: 2021 Feb 19, 08:09 -0800

    James F Campbell, you wrote:
    "Thank you for advising of the Chandler Wobble of Mars article. There, however, is a fee to get it."

    There were a number of lightweight "gee whiz" articles on the topic. I could have linked one of those. For NavList readers, more comfortable with a little technical detail, I chose the article summary, which you can read at the link I posted. It's closer to the metal than the "gee whiz" articles. Here's that link again: Detection of the Chandler Wobble of Mars From Orbiting Spacecraft. The fact that the complete scholarly article is behind a paywall ($7 to access) is a nuisance but "not my problem". Try emailing the article authors.

    Frank Reed

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