Titel: Choosing and Using Astronomical Filters Författare: Martin Griffiths Språk: Engelska Utgiven: 2015 Format: Häftad ISBN: 9781493910434Choosing and Using Astronomical Filters * Provides an in-depth look at the telescope accessories known as astronomical filters * Includes the history of different types of filters, their uses and specialist techniques * Features a basic guide to using Adobe Photoshop to further enhance images * Includes an observational guide to 100 astronomical objects that you can see better with filters, personally imaged by the author As a casual read through any of the major amateur astronomical magazines will demonstrate, there are filters available for all aspects of optical astronomy. This book provides a ready resource on the use of the following filters, among others, for observational astronomy or for imaging: * Light pollution filters * Planetary filters * Solar filters * Neutral density filters for Moon observation * Deep-sky filters, for such objects as galaxies, nebulae, and more Deep-sky objects can be imaged in much greater detail than was possible many years ago. Amateur astronomers can take photographs that rival those of professional observatories! The ability to do this has been brought about by the revolution in CCD cameras and improved filters. The book pinpoints which astronomical objects are best observed with which filters. Post-processing (using Photoshop) is also discussed, since it is helpful in further improving filtered astro images. The last part of the book is an observational guide to 100 deep sky objects that benefit from the use of filters – all personally observed by the author – with notes on the filters used (or potentially of use) in their observation and imaging. There are also notes on their celestial coordinates, magnitudes, and other pertinent information.

Titel: Digital SLR Astrophotography Författare: Michael A. Covington Språk: Engelska Format: Häftad ISBN: 9781316639931Digital SLR Astrophotography Digital SLR cameras have made it easier than ever before to photograph the night sky. Whether you're a beginner, nature photographer, or serious astronomer, this is the definitive handbook to capturing the heavens. Starting with simple projects for beginners such as cameras on tripods, it then moves onto more advanced projects including telescope photography and methods of astronomical research. With 80% revised and updated material, this new edition covers nightscapes, eclipses, using cameras with sky trackers and telescopes, and tools for identifying celestial objects and investigating them scientifically. Image processing is discussed in detail, with worked examples from three popular software packages - Nebulosity, Maxlm DL, and PixInsight. Rather than taking a recipe-book approach, Covington explains how your equipment works as well as offering advice on many practical considerations, such as choice of set-up and the testing of lenses, making this a comprehensive guide for anyone involved in astrophotography. * Amateurs with affordable, easily portable equipment now get better pictures of the sky than professional observatories did half a century ago * A comprehensive yet accessible handbook providing guidelines for both beginners and experienced astrophotographers * Includes simple projects which can be carried out with just a camera and tripod, as well as more advanced material - up to introductory research-level, for example, variable-star photometry

Author: Antony Cooke Serves as the only resource for amateur observers who specifically set out to observe dark features in the deep sky Offers detailed descriptions of how to study dark objects, including recommendations for choosing commercial equipment Shows how practical observations of dark features can be made from suburban (light-polluted) locations Contains numerous helpful individual object descriptions and illustrations

* Provides the perfect guide for observing in the field with binoculars or a telescope. * Enables observing sessions to be planned in advance. * Objects are organized by season, making the book much easier to use. * Contains core information about the target star clusters. * Features superb digital images for every object. * Full-page finder charts make it easy to locate the target clusters. Star Clusters, Authors: Cardona III, Charles A. Star clusters are some of the most beautiful objects in the night sky and are prime targets for observational astronomers as well as astrophotographers. Using some of the newer technologies and larger and more powerful telescopes available today to amateur astronomers, many more of these dazzling groupings of stars can now be located and viewed throughout the year. In this field guide that will help you to decide what to look for and where to look for it, as well as what equipment to use, you will find what you need, whether you are a beginner in the field or an experienced observer. So on the next clear night, take your book and your binoculars or telescope and maybe your camera outside and see what new wonders can be revealed to you. You wont be disappointed!

Orion Solar System Map innehåller tre stycken mycket intressanta astronomiska affischer från Orion. * Our solar system - detaljerade bilder och spännande information om solen och planeterna. Storlek 76 x 50cm. * Observing the moon - stor bild av månen samt ett antal detaljbilder. Storlek 76 x 50cm. * Meteor showers - spännande informationer om hur du kan titta på meteorskurar. Storlek 50 x 76cm. Affischer: Orion Solar System, Moon, and Meteors Poster Kit - språk: Engelska Leveransen omfattar 3 affischer: * Our solar system * Observing the moon * Meteor showers

Guides observers to the best nebulous objects in the night sky from any latitude, including the incorporation of numerous Southern Hemisphere objects Authored by a recipient of the "Master Observer Award" of the Astronomical League, who is extremely familiar with the instrumentation needed to view and image nebulae as well as having a deep understanding of their properties Contains many stunning pictures illustrating the beautiful and multi-colored nebulae of the Milky Way Observing Nebulae This book enables anyone with suitable instruments to undertake an examination of nebulae and see or photograph them in detail. Nebulae, ethereal clouds of gas and dust, are among the most beautiful objects to view in the night sky. These star-forming regions are a common target for observers and photographers. Griffiths describes many of the brightest and best nebulae and includes some challenges for the more experienced observer. Readers learn the many interesting astrophysical properties of these clouds, which are an important subject of study in astronomy and astrobiology. Non-mathematical in approach, the text is easily accessible to anyone with an interest in the subject. A special feature is the inclusion of an observational guide to 70 objects personally observed or imaged by the author. The guide also includes photographs of each object for ease of identification along with their celestial coordinates, magnitudes and other pertinent information. Observing Nebulae provides a ready resource to allow anyone with a little experience in astronomy, whether professional or amateur, to locate, identify and record the nebulae in our home galaxy. The author enables the observer to use a telescope and filters to the best advantage to see these celestial wonders, or to couple filters to a CCD camera or digital SLR camera in order to take quality images of celestial objects. By using these techniques it is even possible to make a valid contribution to professional investigations. And the views are unbeatable.

The uniquely beautiful light display of an aurora is the result of charged particles colliding with tenuous atmospheric oxygen and nitrogen, more than 60 miles above the Earth, when the magnetosphere is disturbed by changes in the solar wind.Aurora - Observing and Recording Nature's Spectacular Light Show, Authors: Bone, Neil Often - and incorrectly - regarded as being confined to high northern and southern latitudes, major auroral displays are visible from even the southern USA and the south of England, and occur perhaps twenty times in each eleven-year sunspot cycle. Major auroral storms always cause great interest and excitement in the media, and of course provide practical astronomers with the opportunity to study and image them. This book describes the aurora from the amateur observational viewpoint, discusses professional studies of auroral and geomagnetic phenomena to put amateur work in context, and explains how practical observers can go about observing and recording auroral displays.

Provides a one-stop shop for the amateur variable star observer. Features chapters on binocular variable stars and photometric study of variable stars, topics that have not been addressed in most other amateur astronomy books. Uses non-mathematical language that is easily accessible to anyone with a general interest in astronomy. Provides basic and advanced information for an activity many amateur astronomers pursue once they have developed some skills in deep sky observing This book contains everything you need to know about variable stars -- stars whose brightness varies noticeably over time. The study of variable stars has been a particularly popular area of research for amateurs for many years; the material contained herein serves as both an introduction to amateur astronomers and a useful reference source for seasoned variable star observers.  With its thorough, non-mathematical descriptions of variable stars and tips for how to see them, this book enables novices and experts alike to set off into the field and observe a wide range of delightful sights. It strikes a balance between easily visible objects that can be seen in any telescope or binoculars, and variable stars that are a direct challenge to those with large aperture equipment or access to photometric tools and methods. After helping the observer differentiate between variable star types, the author goes on to explain the skills needed to operate a telescope and other equipment, as well as how to couple filters to a CCD camera or digital SLR camera in order to photometrically record these celestial objects. Further, the book includes an observational guide to 50 objects for study, with finder charts and data about light curves for ease of identification, along with the stars’ celestial coordinates, magnitudes, and other pertinent information.

En introduktion till solens historia.Solar History - An Introduction - Författare: Claudio Vita-Finzi Beyond the four centuries of sunspot observation and the five decades during which artificial satellites have monitored the Sun – that is to say for 99.99999% of the Sun's existence – our knowledge of solar history depends largely on analogy with kindred main sequence stars, on the outcome of various kinds of modelling, and on indirect measures of solar activity. They include the analysis of lunar rocks and meteorites for evidence of solar flares and other components of the solar cosmic-ray (SCR) flux, and the measurement of cosmogenic isotopes in wood, stratified ice and marine sediments to evaluate changes in the galactic cosmic-ray (GCR) flux and thus infer changes in the sheltering magnetic fields of the solar wind. In addition, shifts in the global atmospheric circulation which appear to result from cyclic fluctuations in solar irradiance have left their mark in river sediments and in the isotopic composition of cave deposits. In this volume the results these sources have already produced have been summarised, paying special attention to those that reflect processes in different parts of the Sun's interior and that display periodicities and trends which may enable us to forecast future large-scale environmental changes. Språk: Engelska

Den Spännande Astronomin, 5:e upplagan är en uppdaterad version av denna mycket populära bok av Hans Thorgren och som sålts i tusentals exemplar under många år. Den Spännande Astronomin, 5:e upplagan vänder sig till gymnasieelever, lärare, amatörastronomer och alla andra nyfikna på astronomi. Den ger en samlad baskunskap inom det breda ämnet. För de gymnasieelever som vill lära sig lite mer om astronomi utöver det som ingår i grundskolans NO-ämnen och gymnasiets fysikkurser så är Den Spännande Astronomin, 5:e upplagan som klippt och skuren. Den kan vara lämplig att använda som ett hjälpmedel t.ex. vid ett projektarbete i astronomi eller något annat ämne som berör rymden. Eftersom matematik undvikits kan boken säkert också fungera bra på lägre skolstadier. Den spännande Astronomin, 5:e upplagan kan även användas vid studiecirklar eller vid självstudier samt av dem som vill börja med amatörastronomi, en trevlig, lärorik och spännande hobby. Boken är lämplig för lärare som inte tidigare i sin utbildning kommit i närmare kontakt med ämnet. Den har ett smidigt format tänkt att kunna medföras vid astronomiska observationer. Storlek 16x22,5 cm, är ringbunden och tryckt i färg. 172 sidor I boken finns ett stort antal färgbilder på olika fascinerande objekt och innehåller även stjärnkartor för den som vill lära sig att hitta på himlen. Boken innehåller historiska återblickar och redovisar en del spännande upptäckter som gjorts under åren. Vidare beskrivs olika utrustningar (kikare,teleskop mm) och andra hjälpmedel att hitta på stjärnhimlen. Andra kapitel handlar om Jorden, Månen, planeterna, asteroider, kometer, stjärnor, galaxer, kvasarer och svarta hål samt kosmologi. Boken berör även den spännande frågan om liv i rymden samt den aktuella debatten om växthuseffekt och global uppvärmning. Den omfattar 30 kapitel som förutom informativ text och bilder innehåller kontrollfrågor, observationsuppgifter samt webbuppgifter. Författare är Hans Thorgren, fil.mag. i matematik, fysik och astronomi med bakgrund som matematik och fysiklärare och gymnasierektor. Som nybliven pensionär är han fullt sysselsatt med sitt favoritämne vilket inkluderar astronomstudier vid Uppsala Universitet, arbete som astronomiguide och föreläsare samt aktivt medlemskap i Västerås Astronomi - och Rymdforskningsförening.

Every total solar eclipse sees cruise ships or coach convoys, and frequently both, conveying to thousands of observers the narrow umbral track, where they can witness this rare and beautiful astronomical event, weather permitting. But for each total solar eclipse you get just a few minutes (or seconds) to make the most of the spectacle, savor it visually, and record the event.Total Solar Eclipses and How to Observe Them, Authors: Mobberley, Martin * Describes the astronomy, science and physics of total solar eclipses, and the phenomena that can be observed only during a total eclipse. * Enables members of the growing community of eclipse chasers to ensure that they have with them all the right equipment to observe or image a total solar eclipse. * Describes what to expect during a total solar eclipse, in different conditions and in different locations. * Describes previous eclipse expeditions, including a look at the less serious side: eclipse expedition disasters. * Provides a checklist of where to go to see total solar eclipses for the next 15 years. Every total solar eclipse sees cruise ships or coach convoys, and frequently both, conveying to thousands of observers the narrow umbral track, where they can witness this rare and beautiful astronomical event, weather permitting. But for each total solar eclipse you get just a few minutes (or seconds) to make the most of the spectacle, savor it visually, and record the event. You have to get it right first time, which is where Total Solar Eclipses and How to Observe Them comes in. Here is all the information an eclipse chaser needs to ensure a trouble-free expedition. Martin Mobberley explains how to avoid equipment and set-up errors thousands of miles from home, advises on the right equipment to buy for observing and digital SLR imaging, and explains the crucial points to address when traveling abroad with astronomical equipment. The first part of the book contains a wealth of information about total solar eclipses themselves: how and why they happen, related physics of the Sun, the alignment geometries, and, of course, the astronomical features that can only be witnessed when our Moon precisely covers the solar disk.

Titel: Astrophotography is Easy! Författare: Gregory I. Redfern Språk: Engelska Utgiven: 2020 Format: Häftad ISBN: 9783030459420Astrophotography is Easy! * Focuses on true beginners in astrophotography, assuming no prior knowledge of the subject * Covers the scientific background, necessary equipment, and field techniques for photographing the sky * Avoids overly technical material in favor of a casual, reader-friendly guide There are many books covering different facets of astrophotography, but few of them contain all the necessary steps for beginners in one accessible place. Astrophotography is Easy! fills that void, serving as a guide to anybody interested in the subject but starting totally from scratch. Assuming no prior experience, the author runs through the basics for how to take astrophotos using just a camera—including cell phones and tablets—as well as a telescope and more sophisticated equipment. The book includes proven techniques, checklists, safety guidelines, troubleshooting tips, and more. Each chapter builds upon the last, allowing readers to master basic techniques before moving on to more challenging material. Also included is a comprehensive list of additional books and resources on a variety of topics so readers can continue expanding their skills. Astrophotography Is Easy! doesn’t simply teach you the basic skills for becoming an astrophotographer: it provides you with the foundations you will need for a lifelong pursuit.

Lär dig allt du behöver veta om rymden och vår galax. Läs om vår måne och hur vi rest dit. Upptäck stjärnkonstellationer och besök den internationella rymdstationen ISS som ligger i omloppsbana runt jorden. Ta reda på mer om varje planet i vårt solsystem, från Merkurius till Uranus. Perfekt läsning för alla som drömmer sig ut i universum. Lättläst bok för både barn och vuxna!

* Enables Northern Hemisphere readers to quickly determine the next celestial event they can see with the naked eye. * Guides readers through eight years of the sky's rhythms via a month-by-month almanac and annual overviews with each year's best events. * Helps seasoned observers such as eclipse chasers plan travel for events. Celestial Delights, Authors: Reddy, Francis Celestial Delights is the essential "TV Guide" for the sky. Through extensive graphics integrated with an eight-year-long calendar of sky events, it provides a look at "don't miss" sky events, mostly for naked-eye and binocular observing. It is organized by ease of observation lunar phases and the brighter planets come first, with solar eclipses, the aurora, and comets coming later. This third edition also includes a hefty dose of sky lore, astronomical history, and clear overviews of current science. It provides a handy reference to upcoming naked-eye events, with information broken out in clear and simple diagrams and tables that are cross-referenced against a detailed almanac for each year covered. This book puts a variety of information all in one place, presents it in a friendly way that does not require prior in-depth astronomical knowledge, and provides the context and historical background for understanding events that astronomy software or web sites lack.

A nontechnical, nonmathematical primer on amateur radio astronomy. Includes 4 new amateur projects, including bouncing a signal off the moon, detecting the aurora, ISS, and more. Offers expanded resources for the interested reader.

* Provides all the background material needed to appreciate and understand the astronomy of the major radio sources that are observable by amateurs * Contains the information necessary to build and use a low cost backyard radio telescope. * No previous experience in electronics is required. * Gives plans for a simple cook-book radio telescope that can be built in a weekend! The Radio Sky and How to Observe It, Authors: Lashley, Jeff We have learned a great deal about our universe not only by looking at the sky through optical telescopes but also by listening to it! Although in the past most of the great discoveries have been made by professional radio astronomers using large radio telescopes built for institutions, today even amateurs can build and use small radio telescopes and make discoveries that can contribute to the general store of knowledge. And you dont need to be an electronics genius or rich! Jeff Lashley, in this comprehensive guide to the science and art of putting together and using a small radio telescope, will lead you through the process and help you to understand what to listen for. Filled with projects and tips and great advice, he can get you underway in a hurry and help you to decode what you are hearing. So if youve been doing amateur astronomy for a while and want to expand beyond what you can see with your eyes, this is a direction you should consider going in. Or, if youve dabbled in building radios for years and want to try something new, this can be a way to expand your hobby. Either way, start now listening to the fireworks going on all around you'll be amazed!