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за 2004 год.
Almost on the Ground
23.08.2004 | Лунное фото дня
Sometimes in the early evening sky, before it glares in complete darkness, the Moon takes on a golden hue, well captured and exaggerated here in a handheld photo by the Apollo 16 crew. The low oblique shot provides a near-profile view of this 60 km wide crater. Can you identify it?
Schrodinger
22.08.2004 | Лунное фото дня
In 1971 Bill Hartmann and I published a paper on impact basins on the Moon that recognized three types: peak ring basins (like Compton with an inner ring and a central peak), peak ring basins and multi-ring basins, with three or more rings.
Vaporum: Crater or Basin?
21.08.2004 | Лунное фото дня
Have you noticed the circular patch of mare that cuts into the back slope of the Apennine mountains? With the name Mare Vaporum you may think there is little there but vaporous nothingness, but look more closely.
Humor More My Fault
20.08.2004 | Лунное фото дня
Geologists love to find boundaries because they demonstrate the relation between different units. At a boundary you can usually identify two different rock types or geologic processes or ages. Some boundaries feather into each other and others are sharp and distinct.
A New Dome?
19.08.2004 | Лунное фото дня
The northeast region of the Moon, beyond Serenitatis and north of Crisium is a region of discomfort. Its a wild place with the confusion of the Taurus Mountains and similar unstructured but unnamed chaos between Atlas and Cleomedes.
Last Rocks from the Moon
18.08.2004 | Лунное фото дня
On August 18, 1976 - 28 years ago today - the Luna 24 spacecraft landed on the Moon in southeastern Mare Crisium. Following two previous failures (Oct 1974 and Oct 1975) Luna 24 successfully landed at 12.25 degrees N, 62.2 degrees E, just a few hundred meters from the damaged Luna 21 spacecraft.
Rima Weird
17.08.2004 | Лунное фото дня
As a good generalization, sinuous rilles occur on the maria because the rilles are distributary channels for flowing lava. There are some exceptions, including the four around Plato, and here is another one.
Megadome
16.08.2004 | Лунное фото дня
Is Rumker the Moon's biggest dome? How about the Aristarchus Plateau? What about the Gardner Megadome, a structure I named in The Modern Moon, and shown in the overview image above (circled on mouseover)? In fact, are any of these landforms domes, other than in a strict topographic sense?
Flammarion x 2
15.08.2004 | Лунное фото дня
This has been a great couple of weeks for lunar photography, with many skilled imagers acquiring wonderful pictures nearly every night of the lunation. Here is a recent pair of Flammarion, an often overlooked and slightly battered crater north of Ptolemaeus. Have you ever knowingly observed Flammarion?
A Rip Across Tranquillity
14.08.2004 | Лунное фото дня
WOW! This is a wonderfully provocative image because of the features it shows and the others it suggests! The Cauchy area is remarkable for its near parallel fault scarp and rille, and for its two or three big domes. But even more delicate features appear with very low lighting.