Chicago, Illinois


London, England


MerTran 02

  Mercury Transit

© Curt Renz

Previews of the apparent path of Mercury across the Sun on 2019 NOV 11

            Employing the great accuracy and precision of Solex numerical integration software

   Avoid great danger to eyes. Take special care when setting up a telescope for solar observation.

MerTran 01
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Geocentric - Equatorial Coordinates with Up toward Celestial North


MerTran 99

Topocentric for Cities Below - Horizontal (Alt-Az) Coordinates with Up toward Zenith - Apparent curved paths due to Earth’s rotation - Timing differences due to parallax

Solar Filter Sale!

              Work in progress.

Many more cities will be added later.