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The Hatfield SCT Lunar Atlas - Photographic Atlas for Meade, Celestron, and Other SCT Telescopes: A Digitally Re-Mastered Edition (Paperback, Softcover reprint of the original 2nd ed. 2014)
Loot Price: R1,618
Discovery Miles 16 180
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The Hatfield SCT Lunar Atlas - Photographic Atlas for Meade, Celestron, and Other SCT Telescopes: A Digitally Re-Mastered Edition (Paperback, Softcover reprint of the original 2nd ed. 2014)
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In 2004, it became obvious that Henry Hatfield's original atlas
wasn't suitable for all current commercially-made amateur
telescopes. Newtonian telescopes and astronomical refractors - for
many years the only choice for amateurs - invert the observed
image. The standard Hatfield Atlas therefore follows the IAU
(International Astronomical Union) convention of having maps (and
photographs) with South at the top and West on the left: an
inverted image. However, the current ranges of Schmidt-Cassegrain
and Maksutov telescopes - that's most of those manufactured by
Meade, Celestron, and many others - don't invert the observed image
but instead reverse it left-for-right. That's with North at the top
and East on the left. Because of the way the human visual system
works, it is almost impossible to mentally 'mirror-image' a map to
compare it with the view through the eyepiece , so even turning an
IAU-standard atlas upside-down doesn't help! This new SCT version
of the Atlas solves this problem for observers. Identification of
lunar features is made quick and easy. The new, digitally
re-mastered second edition vastly improves the clarity and
definition of the original photographs - significantly beyond the
resolution limits of the photographic grains present in earlier
atlas versions - whilst preserving the layout and style of the
original publications. This has been achieved by merging
computer-visualized Earth-based views of the lunar surface, derived
from NASA's Lunar Reconnaissance Orbiter data, with scanned copies
of Commander Hatfield's photographic plates, using the author's own
software. The result is a The Hatfield SCT Lunar Atlas for 21st
century amateur telescopes up to and beyond 12-inch aperture. It
contains all the features that made the original so widely used: a
combination of an index of all International Astronomical Union
named primary lunar features, and twelve chart areas help to locate
any named lunar features of interest that can each be examined
under typically five different states of illumination. Close ups of
interesting features are also included. The new Atlas is
supplemented by an introduction to its use, a short description of
the digital re-mastering technique, and a completely new section
describing lunar observing techniques. At the end of the atlas
there is an index of all named features and crater diameters, along
with a summary table of the dates and times that the original
Hatfield images represent.
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