Kategoria BISAC: Nature >> Star Observation

This thesis presents a study of the origin of an apparently extended X-ray emission associated with the Galactic ridge. The study was carried out with broadband spectra obtained from mapping observations in the Galactic bulge region conducted in 2005-2010 by the Suzaku space X-ray observatory. The spectra were analyzed with a newly constructed X-ray spectral model of an accreting white dwarf binary that is one of the proposed candidate stars for the origin of the Galactic ridge emission in the higher energy band. Fitting of the observed Galactic ridge spectra with the model showed...

Amateur astronomers have to start somewhere. Most begin by buying a modest astronomical telescope and getting to know the night sky. After a while, many want to move on to the next stage, but this can be problematic. The magazines advertise a mass of commercially-made equipment some of it very expensive which can represent a major financial outlay. The trick is to choose the right equipment, and then use it to its fullest extent.

Observing Skills: The Science and Art of using Astronomical Telescopes provides the required information. First, it explains how to get the best from...

In an eye-opening sequence of personal meditations through the cycle of seasons, one of our most celebrated storyteller-poet-naturalists awakens us to the world at dawn. Diane Ackerman draws from sources as diverse as meteorology, world religion, etymology, art history, and poetry in order to celebrate that moment in which the deepest arcades of life and matter become visible. From spring in Ithaca, New York, to winter in Palm Beach, Florida, Dawn Light is an impassioned call to revel in our numbered days on a turning earth.

A Los Angeles Times Favorite Book,...

Stargazing is the practice of observing the night sky and its contents - from constellations through to planets and galaxies. Stars and other night sky objects can be seen with the naked eye, or seen in greater numbers and in more detail with binoculars or a telescope.

Stargazing For Dummies offers you the chance to explore the night sky, providing a detailed guide to the main constellations and also offering advice on viewing other night sky objects such as planets and nebulae. It's a great introduction to a fun new hobby, and even provides a fun...

Any amateur astronomer who is interested in astrophotography, particularly if just getting started, needs to know what objects are best for imaging in each month of the year. These are not necessarily the same objects that are the most spectacular or intriguing visually. The camera reveals different things and has different requirements. What objects in the sky tonight are large enough, bright enough, and high enough to be photographed? This book reveals, for each month of the year, the choicest celestial treasures within the reach of a commercial CCD camera. Helpful hints and advice on...

This book shows amateur astronomers how to use one-shot CCD cameras, and how to get the best out of equipment that exposes all three color images at once. Because this book is specifically devoted to one-shot imaging, "One-Shot Color Astronomical Imaging" begins by looking at all the basics - what equipment will be needed, how color imaging is done, and most importantly, what specific steps need to be followed after the one-shot color images are taken.

What is one-shot color imaging? Typically, astronomical cooled-chip CCD cameras record only one color at a time - rather like...

Turn Every Walk into a Game of Detection

When writer and navigator Tristan Gooley journeys outside, he sees a natural world filled with clues. The roots of a tree indicate the sun's direction; the Big Dipper tells the time; a passing butterfly hints at the weather; a sand dune reveals prevailing wind; the scent of cinnamon suggests altitude; a budding flower points south. To help you understand nature as he does, Gooley shares more than 850 tips for forecasting, tracking, and more, gathered from decades spent walking the landscape around his home and around the world. Whether...