Some time ago, the renowned astronomer Patrick Moore - best known for his BBC TV programme The Sky at Night which has screened continuously for 42 years - devised a catalogue of 109 deep space (galaxies, nebulae, clusters) objects to which he has lent his middle name Caldwell. Thus Caldwell objects, numbered C1 to C109.Why Caldwell and not Moore? The most famous of all catalogues of astronomical objects was created by Charles Messier in 1774, and these are designated by M1 to M109, so Patrick Moore could not use his own surname, but instead elected to use his middle name Caldwell. And Patrick Moore chose 109 object to match Messier, though it is important to understand that not one of Patrick Moore's objects overlaps with Charles Messier's.Messier was in fact a comet hunter - in the eighteenth century comets were not understood at all and had huge significance when they appeared blazing across the clear skies, as yet free from the light pollution we experience. He catalogued galaxies, nebulae and clusters not because he was particularly interested in those objects, but because he did not want these objects to be confused with ne

This app for Apple iPad presents the 22 stringed musical instruments in the Caldwell Collection of Viols, including fine, rare, and important examples by Amati, Bertrand, Norman, Rose, Tielke, and others. Lavishly illustrated listings provide: * more than 200 photographs, including full-page portraits of each instrument by Roger Mastroianni * over 90 minutes of music, in 40 audio tracks * details of provenance, dimensions, and restoration history * technical descriptions of each instrument by the contemporary viol builder John Pringle * essays on the makers by the musicologist Thomas G. MacCracken The publication contains Catharina Meints Caldwell's moving and humorous memoir as well as a catalogue, telling the story of how the collection was shaped by the forty-year musical life together of its principals, and by their conviction that "instruments, no matter how beautiful, are meant to be played and heard, not just looked at."

The objects listed in the Caldwell Catalogue supplement Messiers famous catalogue of 110 non-stellar objects, and include some of the most fascinating objects for amateur astronomers. This comprehensive guide has been produced specially for observers, with each object conveniently shown on a double-page spread. There is a photographic image of every object and full technical data including position and NGC number. It also includes a finder map showing TelradTM circles, a star-hopping guide, a visual description of each object as seen through amateur telescopes, and a physical description of the object itself. Finally, there is a fold-out map showing the location of all the Caldwell objects in the sky. A practical and essential guide.

Every amateur astronomer has at least heard of the many different catalogs of deep-sky objects; the most well known are the Messier, the Caldwell, the Herschel, and the NGC. All of these catalogs are, in general, readily available, but very few amateur observers are in a position to choose the best catalog for their particular deep-sky observing program, know how to use the catalog, or even realize just how many there are out there! The Amateur Astronomer's Guide to the Deep-sky Catalogs is a single compilation of the historical and modern astronomical deep-sky catalogs. It discusses their origins, compares what's in them, explains how to interpret the data they contain, and even outlines how readers can create suitable 'custom' catalogs for their own use. The last section provides a set of three deep-sky catalogs created by the author, for observers of different levels of experience, from newcomer to expert.

Appendix C William Herschel: the greatest visual observer of all time - by Larry Mitchell -- Appendix D Image credits -- Index

Stephen O'Meara's new and exciting observing guide spotlights an original selection of 109 deep-sky objects that will appeal to sky-watchers worldwide. His 'hidden treasures' include a wonderful assortment of galaxies, open clusters, planetary nebulae and more, all of which have been carefully chosen based on their popularity and ease of observing. None of these objects are included in either the Messier or the Caldwell catalogs, and all are visible in a 4-inch telescope under dark skies. Stunning photographs and beautiful drawings accompany detailed visual descriptions of the objects, which include their rich histories and astrophysical significance. The author's original finder charts are designed to help observers get to their targets fast and efficiently.

The Messier Catalogue is a list of one hundred and ten galaxies, star clusters and nebulae, and includes many of the brightest and best-known objects in the sky. Amateur astronomers who find all the objects on the list in one night have successfully completed the Messier Marathon. The Observing Guide to the Messier Marathon contains over 90 easy-to-use star maps to guide the observer from one object to the next, and provides tips for a successful night of observing. Don Machholz also tells the story of the eighteenth-century astronomer, Charles Messier, and how he came to compile his extensive catalogue. His complete guide to the Messier Marathon will help the amateur astronomer to observe the Messier Objects throughout the year, using a small telescope or even a pair of binoculars. Don Machholz is an engineer in Auburn, California. Interested in astronomy since childhood, he is a renowned comet hunter, having discovered nine comets that bear his name. He writes articles for local California newspapers and radio stations for special astronomical events. Between 1988 and 2000, Don Machholz was the Comets Recorder for the Association of Lunar and Planetary Recorders.