Jim Low

Jupiter 196007170544

Jupiter on 1960 July 16/17 at 21:44+17 PST (05:44 UT) as sketched by Jim Low. C.M.(1) 354º, C.M.(2) 136º. 4" reflector at 130x, 167x. Seeing 6/10. Transparency 4/5. North is down. Although the seeing was only 6 at Jupiter's altitude, it was 8 high in the sky. Epsilon Lyr (double-double) was very easy, and I est. that the resolving power at that time was about 0.5", although in theory, my telescope should resolve down to 1.2" only.

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Jupiter 196007150456

Jupiter on 1960 July 14/15 at 20:56+5m PST (04:56 UT) as sketched by Jim Low. C.M.(1) 9º, C.M.(2) 166º. 4" reflector at 130x. Seeing 3/10. Transparency 4/5. North is down.

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Jupiter 196007130538

Jupiter on 1960 July 12/13 at 21:38+6m PST (05:38 UT) as sketched by Jim Low. C.M.(1) 78º, C.M.(2) 101º. 4" reflector at 130x. Seeing 2. Transparency 3. North is down.

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Jupiter 196007090521

Jupiter on 1960 July 8/9 at 21:21+6m PST (05:21 UT) as sketched by Jim Low. C.M.(1) 157º, C.M.(2) 359º. 4" reflector at 130x. Seeing 3/10. Transparency 4 to 5/5. North is down. Note that time zone used is 120th merid. or Pacific Standard.

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Jupiter 196006220241

Jupiter on 1960 June 21/22 at 21:41+9m EST (02:41 UT) as sketched by Jim Low. C.M.(1) 253º, C.M.(2) 226º. 4" reflector at 130x & 167x. Seeing 4-5/10. Transparency 4/5. North is down.

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Jupiter 196006210245

Jupiter on 1960 June 20/21 at 21:45+10m EST (02:45 UT) as sketched by Jim Low. C.M.(1) 97º, C.M.(2) 78º. 4" reflector at 130x. Seeing 2-3/10. Transparency 3/5. North is down. This observation was made only 9h. 29m. from the time when Jupiter is nearest Earth (Jupiter nearest Earth on June 21d. 12h. 14m. UT at 4.238969 A.U.).

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Jupiter 196006190548

Jupiter on 1960 June 18/19 at 00:48+11m EST (05:48 UT) as sketched by Jim Low. C.M.(1) 252º, C.M.(2) 248º. 4" reflector at 130x. Seeing 4/10. Transparency 4/5.

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Jupiter 196006190320

Jupiter on 1960 June 18/19 at 22:20+25m EST (03:20 UT) as sketched by Jim Low. C.M.(1) 162º, C.M.(2) 159º. 4" reflector at 130x, 167x. Seeing 4/10. Transparency 4½/5. North is down. Satellites I, and III were observed to be in conjunction (i.e.—forming a 90º angle with the zones of the planet) at 23h 28m. EST (04h 28m UT), and they were about 20" apart.

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Jupiter 196006130515

Jupiter on 1960 June 12/13 at 00:15+23m EST (05:15 UT) as sketched by Jim Low. C.M.(1) 4º, C.M.(2) 45º. 4" reflector at 130x. Seeing 4/10. Transparency 4½/5. North is down.

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Jupiter 196006130319

Jupiter on 1960 June 12/13 at 22:19+16m EST (03:19 UT) as sketched by Jim Low. C.M.(1) 293º, C.M.(2) 335º. 4" reflector at 130x. Seeing 3/10. Transparency 4/5. North is down. Dark areas on NEB were probably spots, but seeing was not good enough to give the exact size or location.

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