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Apollo Landing Site Lansberg Crater

The crater Copernicus and its surroundings in afternoon Illumination. Examples of almost every type of lunar surface feature arc shown on this plato taken with the 36-Inch Refracting Telescope. On November 19, 1969, Charles Conrad and Alan Bean touched down the Apollo 12 lunar module 3 crater diameters southeast of Lansberg within 65 yards of Surveyor 3 which had been soft-landed on April 17, 1967. FIGURE 5. Three great craters at sunset young Theophilus, old Cyrillus, and ancient...

Twentyoneday Moon

What is the most conspicuous feature of the moon tonight Aristarchus is the brightest, but through a small glass it is a dazzling spot with a tail and little more of interest. The Kepler splash pattern is brilliant, but the crater itself v irtually is lost in the glare. Copernicus and Tycho still are conspicuous, but their luster is fading. Some of the large craters of the south near the terminator stand out prominently because of contrast between their black interiors and brilliant walls and...

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The Banger program increased enormously our knowledge of small-scale lunar topography. In three representative regions, judiciously selected, e gained abundant photographic information in hich increasing resolution was accompanied by decreasing area of coverage. By stretching the final frames to the limit, it could be said that man had examined about of an acre on the moon as it would appear to the unaided eye at a distance of several city blocks. The severe limitations of weight and size,...

Sixday moon

Tonight both Mare Tranquillitatis and Mare Sereni-tatis are revealed fully, with the exception of the extreme west edge of the latter. Those two are the darkest although the rest of the maria now are darkened sufficiently to stand out in contrast to the t> nght upland areas. Scattered 130 miles southwest of Pliny near the west edge of Mare Tranquilli-are perhaps a few pulverized remains of the Pace probe Ranger 6 which crashed February 2, 904, its six television eyes open but seeing nothing...

Fourday moon

Mare Crisium now has darkened enough to be recognized as one of the dark lunar areas. The larger Mare Fecunditatis to the south also is shown fully, and it is almost as dark as its neighbor. It is a little larger in area than California. At the terminator near the center of the crescent we see a shaded triangular area. That is the eastern portion of mare tranquillitatis, which will grow for the next two nights. South of its south shore about one Crisium width the terminator cuts into a similar...

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Diameter, and the valley on the east is but one of hundreds of scars found throughout the vast upland area bounded by the Maria Nubium, Imbrium. Se-renitatis, and Tranquillitatis. Most of the sears appear as valleys or cuts approximately radial to Mare Imbrium. Baldwin and Urcy have expressed the belief that they were plowed out by debris hurled from the enormous Imbrium crater following the impact and explosion which produced it. Alter believes they were opened along faults at the time of the...

Linne

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Your Observatory

The term observatory may sound a bit pretentious in view of the scope of astronomical operations here contemplated, but you are going to see a great deal more with your simple equipment than did the astronomers of old who operated the enormous ancient observatories of the Far East. The location of your observatory will be governed by the position and size of trees, buildings, lights, and other distracting conveniences of civilization in the vicinity of your home. If necessary, you may be able...

Elevenday Moon 121

Diameter and 6600 feet deep, is termed by Wilkins and Moore one of the most beautiful and important of all lunar walled formations. Tonight the terminator is far to the west, and the crater is illuminated fully, appearing as a bright ring. It presents an especially interesting spectacle around sunrise or sunset. At such times the relatively low walls appear high and steep, and the triple central mountain shows well as it does tonight. The north wall is broken by the Class 1 crater cassendi a,...

Selenography

Selenography, the study of lunar features, properly begins with Calileo and his observations of 1610 described and illustrated in his Sidereus Nuncius (The Starry Messenger), which he wrote and published in that same year. However, it long has been the fashion to belittle his contributions in the field and to refer with amusement to his drawings, none of the features of which, it is claimed, can be identified with anything on the moon. It is my belief that Galileo's drawings are reasonably...

Twentyday Moon

Some are born great, some achieve greatness, and some have greatness thrust upon em, read Mal-volio from the mysterious letter in the second act of Twelfth Night. If we substitute prominence for greatness we could apply that famous declaration to the lunar surface features. In the first group are craters and mountains which are outstanding objects from sunrise to sunset two weeks later. Most of the objects we have been observing, however, be. long to the second class. Their finest hour lastj...

Twentyfiveday Moon

As soon as we set binoculars on the crescent, our attention is drawn to a striking feature large enough to be seen with the naked eye. Near the north horn the terminator cuts through the middle of what appears to be a huge crater with high and massive walls. Our initial astonishment at this unexpected sight gives way to realization that we are looking at the west half of Sinus Iridum. The north and west portions of the wall are the high Jura Mountains which cast broad, black shadows on the dim...

Gibbous

Rotation, revolution, and phases of the moon are explained In this schematic diagram of the moon's orbit around the earth. The Illuminating sun Is located far to the right, and the moon's positions et intervals of three and two-thirds days are shown. The illumination of the moon as we see it in the Northern Hemisphere at each numbered position is shown at the bottom of the diagram. For the Southern Hemisphere invert the drawing. The directions of orbital revolution and axial rotation...

Alphonsus Crater

The southwest corner of Mare Tran-quillitatis televised by the B camora of Ranger 8 from an altitude of 270 miles on February 20, 1965, at 4 53 A.M. EST, four minutes before impact. The large crater in the upper left corner is Sabine. The Hypatia Rill runs from the middle of the left margin to the lower right margin. It is a graben some 60 miles long and 2 miles wide formed by surface slumping between parallel fault lines. The smaller graben to the north shows characteristic...