Jupiter by Rolf Meier (1978-02)

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As reported at the January 6 Observer's Group meeting,
Jupiter's red spot is very diminished this year. I did
observe a central-meridian transit of the red spot on
January 18, 1978 at about 23:35 EST. Using the rotation
period of Jupiter, one could determine subsequent transits
for the next few weeks.
The photograph opposite was taken on December 31, 1977,
at 23:30 EST using the 40-cm telescope. Exposure time was
2 seconds on High Contrast Copy film at f/60, eyepiece
projection.

(Scanned from monochrome reproduction in AstroNotes)