Supporting amateur astronomers since 1890
In this study we examine a lunar dome identified using CCD terrestrial images, LROC WAC images, Clementine multispectral data, Chandrayaan-1’s Moon Mineralogy Mapper (M3), and the LROC WAC-based GLD100 DTM. The dome lies to the north-east of the crater Goclenius, in mare Fecunditatis, and has a base diameter of 35km. Its height amounts to 212m and the average slope angle x corresponds to 0.70°.
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During 2003-’04, with Saturn at perihelion, the rings were fully open upon the south face allowing excellent views of the southern hemisphere and up to 12 belts. Since 2002-’03 there had been an obvious darkening of the S. Polar Region, though the existing lighter area in the centre of the S. Polar Cap had become more conspicuous. Spot activity was noted over a wide range of latitudes from the N. edge of the S. Polar Cap to the southern Equatorial Zone. The occultation of the star SAO 78867 by the rings and globe was witnessed by several observers in the UK and USA.
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I think the phrase might be ‘small but perfectly formed’. Perhaps not so very perfect, but we did our best
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These predictions focus on comets that are likely to be within range of visual observers, though comets often do not
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Since the second report on the 2016 opposition in the 2016 August Journal (126(4), 205-206 (2016)), Mars was kept under
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The Sun is getting very quiet very fast and the 11-year cycle seems to be coming to an end, with
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It is a singular honour to be elected as President of the Association, and our last president, Dr Jeremy Shears,
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