Arizona republican., 1908-07-08

May 29th. and as it mounts higher uI in the morning sky its change of form may be observed exactly as when Il i sank in the west. The change will however, occur in the inverse order The very narrow, siivery, crescent will continually widen, its form becoming exactly that of a half circle on Sep tember 14th.
 THE PLANET URANUS.
 For few months, therefore, there j will be no bright planet visible in the early evening. Our next visitor will be the beautiful Saturn. but this will not enter the evening sky nntil Sep tember. On its return its rings will be seen to be much more opened out than when it disappeared in February, so that in the telescope it will be a most interesting object.
 In the absence of brighter planets the pOssessor of a small telescope may search for the faint Uranus. which is in the constellation Sagittarius not far | from the bright star K. Figs l and ?. | shown in the small map of Fig. 3, so that with the help of this and Fig. the observer should be able to find this little-known world without diff culty
 | Uranus shines out with a dull green | ish light as star of about the sixth magnitude. It is said to be visible to ! the naked eye, but it is probable that in its present position. surrounded by the multitude of stars in the Milky Way, it cannot be detected without a l telescope. We know that it is great world, thirty thousand miles in diam cter, and that as with Jupiter and Sat urn there is probably nothing solid about it. It is still very hot and prob ably in a vaporized condition; it is so expanded by it's heat that it is only slightly heavier than water. It is cross ed by faint bands just as Jupiter is, and is attended by four little moons, each but few hundred miles in diam eter. and the innermost of which re wolves about the planet in only two uslu d hdiL udtSs Dut dll OI lHcSe utAaliS are only visible in the very largest telescope.
 THE STARS OF THE MILKY
 WAY.
 After finding Uranus, the observer will be well repaid if he examines this whole region of the sky from Sagittari- ne fa Antila Eran without toIoe cope the peculiar brightness of this part of the Milky Way and its wonderfully intricate, knotted, or cloud-like struct- ure is most striking, but with a small interesting and beautiful details Throughout this part of the sky beau tiful star clusters are very numerous Of these the ones at A, B, c and D, eye as bright spots in the Milky Way, while in the telescope they each appear as a great swarm of suns packed close y together. the whole background ap- bearing as if covered with star dust. The arrangement of this multitude of suns into great streams in some places. their massing into clouds and compact clusters in others, and the separation of the Milky Way into two parts sug- gests that acting upon this whole uni verse of stars there is some evolving force, unconsciously vast, whose cause and nature are as yet wholly unknown to us.
 This region is also very rich in faint nebulas and in double stars. At E is the Horseshoe nebula and Antares it. self is surrounded by a great nebulous cloud of such inconceiyable extent that light must require hundreds of years to pass through it. The stars at F. G and H are interesting naked eye doubles; the last shows striking con trast in color, the larger star of the