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Download e-book for iPad: A Portfolio of Lunar Drawings (Practical Astronomy by Harold Hill

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By Harold Hill

Harold Hill's lunar portfolio is a different choice of drawings now released for the 1st time. each one representation is supplemented with notes made on the time of remark. Astronomical drawing nonetheless has a big position along images within the related means that images has no longer supplanted the artist within the fields of botany and ornithology, for instance. certainly, seeing that astronomical photos are inclined to shimmer as a result of turbulence within the Earth's surroundings, drawings built through an artist who takes benefit of the fleeting moments of excellent imaginative and prescient are usually extra particular than photos. not anyone can fail to be inspired via the sweetness and artistry of this paintings and, to the initiated, the accuracy and a spotlight to element is outstanding. it is a booklet for astronomers, novice alike, and in the event you might easily prefer to recognize extra in regards to the moon.

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Sample text

LONG. AND DIFFERENT SELENOGRAPHICAL SOLAR LATITUDES 1964 Feb. t°> LN. +e L3 * 3''43 \o 26 MARE CRISIUM (SE) PROMONTORIUM AZOUT A 27 QUAD. I SECT. 3 REGION 11 Alhazen alpha In the early 1970s considerable interest was shown by a number of amateur observers in the mountain mass designated Alhazen alpha which is situated at 20° N 70° E on the eastern margin of the Mare Crisium. e. from about colongitude 333° onwards. Under a high Sun they are difficult to locate due to lack of shadow and confusion of detail in the general neighbourhood and it is only with the familiarity resulting from continuous observation that it is possible to follow them throughout a lunation.

V. ^ ^ • ,_/ () • • -. • . V . : •• *„—< m il W%z•'• k> • • • • B . '•••: •f r /9fi7 u IP Taruntius Seechi February 17 &. ' . '. Col. '32iTo - /33T7 It I . 8/ ft IT & Schmidt* Ca&5 23 QUAD. I SECT. 3 REGION 9 The Mare Spumans under advancing evening light The Mare Spumans or 'Foaming Sea' is a relatively little known region and one that is rarely, if ever, the subject of representation by the amateur lunarian. This neglect is almost certainly due to the absence of any really noteworthy objects to portray and yet, as the Sun declines, the scene becomes one of absorbing interest as hitherto unsuspected features begin to assume ever-increasing prominence with dramatic spires of shadow developing to creep across the darkening surface of the Mare.

T. T. 100* im Condorcet / Prom. Agarum \ 30 N E QUADRANT 80° 70 ; 60 \ v 50° Sect ion 3 21 QUAD. I SECT. 3 REGION 8 The evening terminator from Messier A to Taruntius Though not on my programme, the appearance of the topographical features in the neighbourhood of Secchi and the larger formation Taruntius on the morning of 1987 February 17 prompted me to attempt a representation which is shown opposite. The diversity in the shape of lunar craters of medium size is sometimes quite remarkable and the formation Secchi is noticeably of irregular form, being open to the north and south with sensibly linear sections of wall on the western side.

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