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--Boundary_(ID_oLsmfocvoN+5Dfav+U5xVg) Content-type: text/plain; charset=US-ASCII; delsp=yes; format=flowed Content-transfer-encoding: 7BIT Nice sequence of clear nights we're enjoying. Tonight when the sky is growing dark look to the southeastward. You'll see the nearly Full Moon with a bright star-like object beside it. That's Jupiter. As a further point of interest, all 4 of Jupiter's Galilean moons disappear from view at about 1:47 a.m. ADT. I realize that this is a bit far into the night for some, however, it is a rare event. Here is a neat animation which illustrates the event; the times are in Universal Time (Greenwich Mean Time is about the same thing). ( http://shadowandsubstance.com/ ) Those with a small telescope can watch the event unfold, or at least see the moons move in toward Jupiter's disk. At 9:00 p.m. Callisto is already behind Jupiter, with Europa and Ganymede to the east of Jupiter and Io ( I-O ) is on the west. At about 10 p.m Europa overtakes Ganymede and moves in line in front of Jupiter's disk about 1:00 a.m. Io also will have moved behind Jupiter at 12:44 a.m. Ganymede will be last, at 1:47. With a large telescope Europa, Ganymede and their shadows could be observed crossing the front of Jupiter's disk. To the small telescope, though, all four moons will be out of sight: it is a rare occasion when this happens. Just before 3:30 a.m. Io re-emerges from behind Jupiter and its shadow. Again, I suggest having a look at the animation. Sherman --Boundary_(ID_oLsmfocvoN+5Dfav+U5xVg) Content-type: text/html; charset=US-ASCII Content-transfer-encoding: quoted-printable <html><body style=3D"word-wrap: break-word; -webkit-nbsp-mode: space; = -webkit-line-break: after-white-space; ">Nice sequence of clear nights = we're enjoying. Tonight when the sky is growing dark look = to the southeastward. You'll see the nearly Full Moon with a = bright star-like object beside it. That's = Jupiter.<div><br></div><div>As a further point of interest, all 4 = of Jupiter's Galilean moons disappear from view at about 1:47 a.m. ADT. = I realize that this is a bit far into the night for some, = however, it is a rare event. Here is a neat animation which = illustrates the event; the times are in Universal Time (Greenwich Mean = Time is about the same thing).</div><div><div><br></div><div>( <a = href=3D"http://shadowandsubstance.com/">http://shadowandsubstance.com/</a>= )</div><div><br></div></div><div>Those with a small = telescope can watch the event unfold, or at least see the moons move in = toward Jupiter's disk. At 9:00 p.m. Callisto is already behind = Jupiter, with Europa and Ganymede to the east of Jupiter and Io ( I-O ) = is on the west. At about 10 p.m Europa overtakes Ganymede and = moves in line in front of Jupiter's disk about 1:00 a.m. Io also = will have moved behind Jupiter at 12:44 a.m. Ganymede will be last, = at 1:47. With a large telescope Europa, Ganymede and their = shadows could be observed crossing the front of Jupiter's disk. = To the small telescope, though, all four moons will be out of sight: = it is a rare occasion when this happens. = </div><div><br></div><div>Just before 3:30 a.m. Io re-emerges from = behind Jupiter and its shadow. Again, I suggest having a = look at the = animation.</div><div><br></div><div>Sherman</div></body></html>= --Boundary_(ID_oLsmfocvoN+5Dfav+U5xVg)--
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