Jupiter on 1959 July 29/30 at 21:07 EDT (01:07 UT) as sketched by S. Downing. C.M.(1) 275º, C.M.(2) 232º. 6½" refractor at 133x. Seeing good. Transparency clear.

Jupiter on 1959 July 8/9 at 21:25 EDT (01:25 UT) as sketched by S. Downing. C.M.(1) 212º, C.M.(2) 329º. 6½" refractor at 222x. Seeing fair. Transparency fair. Telescope vibrates.

Jupiter on 1959 June 10/11 at 22:08 EDT (02:08 UT) as sketched by S. Downing. C.M.(1) 136º, C.M.(2) 107º. 6½" refractor at 222x. Seeing fair. Transparency fair.

Jupiter on 1959 June 3/4 at 22:50 EDT (02:50 UT) as sketched by S. Downing. C.M.(1) 136º, C.M.(2) 160º. 6½" refractor at 222x. Seeing good. Transparency fair.

Jupiter on 1959 May 16/17 at 23:00 EDT (03:00 UT) as sketched by S. Downing. C.M.(1) 178º, C.M.(2) 339º. 6½" at 100x. Seeing 6. Transparency clear.