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CHAMÄLEON + ONJALA OBSERVATORY – LUNAR
ATLAS Segment 07 |
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| Moon age 10.5 - 11.5 days (75 - 84
%) Sinus Iridum Laplace L5 and L6 NEW 2016 Sinus Iridum Laplace L5 und L6 NEW 2016 Dome Caroline Herschel |
Moon age 12 days (87
%) Mairan T Sinus Iridum Laplace L5 and L6 |
Moon age 13 days (95 %) Putative pyroclastic deposits in John Herschel and Babbage |
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Laplace L5 and L 6 at Kap
Laplace - Sinus Iridum - Moon age 10.5
days On the western edge of Cape Laplace, the two domes L5 and L6 are extremely difficult to observe. In principle, they are only visible for 24 hours. This is on the one hand due to the low height of L6 (45 meters) and on the other hand that the peaks generate spectacular shades, see the image below at the moon age of 10.1 days. L5 is classified as effusive dome with a diameter 9 kilometers and an height of 125 meters. L6 is 10 kilometers in diameter, but seems much larger and is classified as an intrusive dome. L5 is sitting "piggyback" on L6. The position of a further, nearly unvisible dome, Caroline Herschel 1 (CH1), is marked in the top right of the image. |
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NEW 2016 Laplace L5 und L 6 -
Moon age 10.8 days (78 %) Laplace L5 and L6 at a moon age of 10.8 days. The peak of the Cape Laplace still casts a spectacular shadow. |
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NEW 2016 Caroline Herschel -
Moon age 10.8 days (77 %) « « The dome Caroline Herschel is classified as effusive dome of the type C1 with a diameter of almost 17 km and a height of approximately 50 meters. It is barely visible in our image. Further to the north two similar dome structures, marked with A and B, are visible. « LRO C. Herschel Even on the LRO image with a resolution of 125 m/px is the dome barely visible. |
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Laplace L5 and L 6 -
Moon age 11.5 days Laplace 5 and 6 are practically invisible at an illumination of 84%. Only the slightly darker lava field of L6 indicated the position of the shallow intrusive dome. At this illumination a brighter area with ejecta of unknown origin and a chain of small craters becomes visible on the surface of Sinus Iridium. |
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LRO Laplace L5 and L 6 |
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Mairan T - Moon age 12 days Mairan T is an often overlooked dome in the eastern part of Sinus Roris. The origin of the dome seems to be a very viscous lava. It has a very steep slope angle compared to other effusive Domen, similar to the Gruithuisen domes. In the center the two major Gruithuisen domes dominate the image, see segment 8 D. |
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Laplace L5 and L 6 -
Moon age 12 days At an illumination of 87 %, the Laplace domes are no longer visible. At this illumination a brighter area with ejecta of unknown origin and a chain of small craters becomes visible on the surface of Sinus Iridium, in th ewest of L5 and L6. Only at this illumination conditions the "ray" with the small secondary craters becomes so clearly visible. |
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John Herschel and Babbage - putative pyroclastic
deposits near the lunar north pole One of our "discoveries" while looking at our images from the year 2015 and up to now nowhere found so far in the lunar volcanism literature which is known to us. A larger area of pyroclastic ash deposits seems to be located on the eastern rim of John Herschel. There are two separate areas. Babbage and John Herschel are located at the northern egde of Mare Frigoris. |
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The
LRO image of the crater rim of
John Herschel (resolution 125 m/px) shows the assiciation of the darker
area with a system of faults. Likewise, there seems to be a further pyroclastic area at the eastern crater rim of Babbage. Load a LRO image of this area with the resolution of 125 m/px. |
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