The Six Inch Lunar Atlas

Here is a lunar atlas designed specifically for use in the field by lunar observers. Its title – The Six-inch Lunar Atlas – refers both to the aperture of the telescope used to make the images in the book, and also to the book’s physical size: so it’s perfect for fitting into an observer’s pocket! The author’s own lunar photographs were taken with a 6-inch (150mm) telescope and CCD camera, and closely match the visual appearance of the Moon when viewed through a modest (3-inch to 8-inch) telescope. (Depending on seeing, of course.) Each picture is shown oriented "as the Moon really is" when viewed from the northern hemisphere, and is supplemented by exquisite computer sketches that list the main features. Two separate computer sketches are provided to go with each photograph, one oriented to appear as seen through an SCT telescope (e.g. the Meade and Celestron ranges), the other oriented for Newtonian and refracting telescopes. It is worth commenting that most observers find it extremely difficult to identify lunar features when using a conventional atlas and SCT telescope – the human brain is very poor at making "mirror-image" visual translations. There is a page of descriptions for the salient features in each photograph.

Featuring 388 high-resolution photographs and concise descriptions of the Moon's topography, this atlas is an indispensable guide for amateur astronomers and astrophotographers.

A photographic atlas of the moon with descriptions of topographical features; overlays identifying key features in photographs; and a day-to-day guide to observing the moon by eye, binoculars or telescope.

"The Hatfield Lunar Atlas" has become an amateur lunar observer's bible since it was first published in 1968. A major update of the atlas was made in 1998, using the same wonderful photographs that Commander Henry Hatfield made with his purpose-built 12-inch (300 mm) telescope, but bringing the lunar nomenclature up to date and changing the units from Imperial to S.I. metric This edition is important since the fact is that modern telescope optics, digital imaging equipment and computer enhancement can easily surpass what was achieved with Henry Hatfield's 12-inch telescope and a film camera. This limits the usefulness of the original atlas to visual observing or imaging rather small amateur telescopes. The new, digitally re-mastered 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 - while 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 results is a "The Hatfield Lunar Atlas" for 21st century amateur telescopes up to and beyond 12-inch aperture.

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.

"The 21st Century Atlas of the Moon is uniquely designed for the backyard, amateur astronomer. As an indispensable guide to telescopic moon observation, it can be used at the telescope or as a desk reference. It is both accessible to the novice and valuable to the expert. With over two hundred Lunar Reconnaissance Orbiter images, the highest quality images of the moon ever taken, this atlas illustrates the Moon in high resolution. With special maps of the limb and far side, LRO altimetry-based images of major basins and their mare ridge, and maps of the Apollo and Soviet landing sites, this guide offers a level of detail never before seen in an atlas of the Moon. The Atlas clearly provides unprecedented detail on more than one thousand named Moon features while recommending additional features and images to observe." -- Publisher's website.

Showcasing features just a mile across in 47 high-resolution images.