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In these pages, the reader can follow the engaging saga of astronomical exploration in the southern hemisphere, in a modern merger of aesthetics, science, and a story of human endeavor. This book is truly a celebration of southern skies.  Jerry Bonnell, Editor - Astronomy Picture of the Day The southern sky became accessible to scientific scrutiny only a few centuries ago, after the first European explorers ventured south of the equator. Modern observing and imaging techniques have since revealed what seems like a new Universe, previously hidden below the horizon, a fresh astronomical bounty of beauty and knowledge uniquely different from the northern sky. The authors have crafted a book that brings this hidden Universe to all, regardless of location or latitude. Treasures of the Southern Sky celebrates the remarkable beauty and richness of the southern sky in words and with world-class imagery. In part, a photographic anthology of deep sky wonders south of the celestial equator, this book also celebrates the human story of southern astronomy with an engaging and detailed history of key contributors to southern sky exploration. The accompanying text provides the reader with intriguing facts and useful information about the featured objects. The volume is arranged by southern hemisphere season and brings to the printed page many of the most provocative and beautiful astronomical images of our time, many in print for the first time. The collection of imagery covers a full range of deep sky astronomical objects, including the familiar and iconic as well as those that are more obscure but no less intriguing. Masterful, state of the art professional and amateur astrophotography highlights the authors' carefully selected deep sky "treasures." DUST JACKET: The beauty and richness of the southern night sky is legendary. From southern latitudes the finest globular clusters in the sky are visible to the unaided eye, as are the nearest galaxies, the Magellanic Clouds. The brightest part of the Milky Way passes overhead during the southern winter and the nearest bright star as well as the legendary asterism known as the Southern Cross are both observable throughout the year. Despite these stunning highlights, the southern sky has received has received less attention than its northern counterparty, and fewer photographs exist of its lesser known, yet equally stunning and intriguing objects. This visual anthology features striking photographic portraits of the most celebrated to the more obscure southern astronomical objects. Carefully selected world-class images have been assembled using the latest digital methods, revealing these southern gems in ways never before seen. To provide a context, the pictures capture the sky in variety of scales, from the wide vistas seen through hobby telescopes to the tiny fields relayed in exquisitely rich detail by the powerful optics of the largest professional telescopes, including the Hubbel Space Telescope and ESO's telescopes. The beauty of the night sky is on display in vivid color and dazzling detail. The presentation is further enhanced by a detailed history of southern sky exploration and lucid text that describes the southern night-sky wonders in ways that are engaging and non-technical.

Observations, Astronomical. --- Astronomy—Observations. --- Astronomy. --- Photography. --- Astronomy, Observations and Techniques. --- Popular Science in Astronomy.

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Many amateur astronomers live in urban and highly developed suburban areas, and many of them believe that they can’t observe deep-sky objects from such light-polluted locations. But it isn’t true. Given the right techniques, urban astronomers can routinely observe deep-sky objects night after night – something most of us would never do if it involved driving miles into the country to find a dark site. Rod Mollise has observed the entire Messier list from his urban backyard, without high-tech equipment, using only commercially-made telescopes and simple accessories. This is a guide to good deep-sky astronomy under bad skies. There are literally hundreds of spectacular objects to be seen from the average urban site. After dealing with equipment, locations and even urban safety, Rod invites you to join him on his virtual "walking tours" of the night sky, with physical and observational descriptions, at-the-eyepiece drawings, and photographs.

Astronomy --- Astronomy. --- Popular Science in Astronomy. --- Astronomy, Observations and Techniques. --- Observations, Astronomical. --- Astronomy—Observations. --- Astronomical observations --- Observations, Astronomical

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In meno di due decenni l’astronomia amatoriale ha cambiato volto. Il motivo, naturalmente, è il progresso tecnologico. Telescopi economici, ma di alta qualità, montature "go-to" controllate dal computer, autoguide, camere CCD, videocamere e (come sempre) computer e Internet sono soltanto alcuni degli elementi che hanno rivoluzionato l’astronomia del XXI secolo. Non solo hanno reso l’astronomia amatoriale più "amichevole" e divertente, ma hanno anche ampliato enormemente le potenzialità dell’astrofilo. Martin Mobberley dapprima affronta le tematiche di base per poi analizzare in modo approfondito quali sono gli strumenti disponibili sul mercato. Da qui prende le mosse per passare in rassegna le rivoluzionarie possibilità che si aprono per gli astrofili, dalla ripresa di immagini, alla spettroscopia, alla fotometria, alla sorveglianza degli oggetti Near-Earth – comete e asteroidi che possono avvicinarsi pericolosamente alla Terra. L’astrofilo moderno è una valida guida alla nuova astronomia. Sia il neofita che chiede di essere introdotto in questo campo, sia l’astrofilo esperto che voglia tenersi al passo delle innovazioni troveranno in questo libro ciò che fa per loro.

Astronomy --- Astronomy. --- Popular Science in Astronomy. --- Astronomy, Observations and Techniques. --- Observations, Astronomical. --- Astronomy—Observations. --- Astronomical observations --- Observations, Astronomical

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This book presents pioneering work on a critical observational test of the planet formation theory based on the theoretical study of the water snowline, beyond which water takes the form of ice, in the protoplanetary disks – the place where planets are formed. Since the water snowline is thought to divide the regions of rocky and gas-giant planet formation, the location of the snowline is essential for the planet formation process. The book proposes a novel method to locate the snowlines using high-dispersion spectroscopic observations of water vapor lines, which is based on in sophisticated chemical modeling and line radiative transfer calculations. The author obtained the water vapor distribution in the disks using the chemical reaction network, which includes photoreactions and gas–grain interactions. The simulated transition lines of water vapor in the disks demonstrate that relatively weak transition lines with moderate excitation energies are the best tracers of water snowline. Furthermore, the author observed submillimeter lines of water vapor in a disk using ALMA (Atacama Large Millimeter/submillimeter Array) to obtain the upper limit of the line fluxes with the highest sensitivity to date. These unprecedented findings are important in locating the snowlines in the disks, and the method goes a long way toward achieving a comprehensive understanding of the planet formation processes as well as of the origin of water on rocky planets, including our Earth, based on future observations using ALMA and SPICA (Space Infrared Telescope for Cosmology and Astrophysics).

Observations, Astronomical. --- Astronomy—Observations. --- Planetary science. --- Astronomy, Observations and Techniques. --- Planetary Sciences. --- Planetary sciences --- Planetology --- Astronomical observations --- Observations, Astronomical

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This catalog is the first in-depth investigation of comets that were reported since the 17th century, but not confirmed and subsequently lost. Volume I of this two-volume work covers objects observed between 1600 and 1899, a period that was dominated by visual observations and was experiencing a rapid evolution in science. The book uniquely combines the history and culture of comet hunting and discovery with modern tools of orbital mechanics to present a wholesome catalog of unconfirmed and suspected comets. Each case includes a presentation of the observations, a discussion about the observer (when possible), consideration of the historic context, and a conclusion as to the nature of the object. In most cases, the book presents material from original sources, including some never before published that were acquired from observatories, libraries, and historical societies around the world. Although some of these unconfirmed comets turned out to be misidentifications of planets or star clusters, fabrications, or poor observations of comets that were already being observed, the Authors did identify many objects that were likely real comets. In some cases, the Authors were even able to derive orbits for the first time. These observations may be valuable in the future, as they could prove to be observations of periodic comets still to be discovered. .

Comets --- History --- Near-Earth objects --- Physics—History. --- Astronomy—Observations. --- History of Physics and Astronomy. --- Astronomy, Observations and Techniques. --- Astronomy --- Science