$39.95Join David J. Eicher in this fast-paced and entertaining journey through the history, present, and future of these important yet mysterious cosmic bodies. The author carefully explores the ideas relating comets and life on Earth - and the danger posed by impacts. He finishes with practical, how-to techniques, tips, and tricks on how to successfully observe comets and even to capture your own images of them.
The MOVA globe ( 12cm ) is the first member of a new family of objects that come quietly to life when touched by light, without wires or batteries. The globe floats at a point of perfect balance between buoyant forces and gravitational forces, and slowly turns as it feels the force of the Earth's magnetic field and the energy carried in light. Its perpetual, quiet motion brings a tranquil point of focus to a room. Add more light and watch it spin faster, dim the setting and observe it slowing. It really is an amazing sight to see!
The MOVA globe works similarly to a compass in that the Earth's magnetic field makes this work!
$69.95Listing more than 500 sky targets, both near and far, in 187 challenges, this observing guide will test novice astronomers and advanced veterans alike. Its unique mix of Solar System and deep-sky targets will have observers hunting for the Apollo lunar landing sites, searching for satellites orbiting the outermost planets, and exploring hundreds of star clusters, nebulae, distant galaxies, and quasars. Each target object is accompanied by a rating indicating how difficult the object is to find, an in-depth visual description, an illustration showing how the object realistically looks, and a detailed finder chart to help you find each challenge quickly and effectively. The guide introduces objects often overlooked in other observing guides and features targets visible in a variety of conditions, from the inner city to the dark countryside. Challenges are provided for the naked eye, through binoculars and the largest backyard telescopes.