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State of the Universe 2007: New Images, Discoveries, and Events (Springer Praxis Books / Popular Astronomy)

State of the Universe 2007: New Images, Discoveries, and Events (Springer Praxis Books / Popular Astronomy)

The aim of State of the Universe 2007 (and subsequent volumes issued annually) is to provide an annual astronomy review suitable for the popular science level reader to be published every year in September in a format that will be suitable for an appeal to the Christmas market. The book will cover all major astronomical news on topics beyond the Solar System and place them in the context of the longer term goals that astronomers and astrophysicists around the world are aiming for. The target is to capture the excitement and vibrancy of modern astronomical research. The book will present a complete list of the major announcements, discoveries and news items from each year, with the major ones being explained in detail through selected chapters being written by invited contributors who are at the forefront in those fields. The January meeting of the American Astronomical Society each year will be the major source of astronomical news for the following years volume, giving access to potential authors and contacts with public information officers of major observatories, space centers, etc.

The regular set features, which will appear every year, will include an annual chronological list of the latest discoveries announced during the previous twelve months; a review of the major news stories of the year with the main characters; a list of launches of major astronomical observatories/satellites during the past year; a list of planned future astronomical satellites; basic data on all astronomical observatories currently in operation with web links for the reader to dig deeper; list of anniversaries and landmarks; the latest from the BadAstronomy website by Dr Phil Plait, and the cartoon feature.

Celestron 94162 Solar Filter for NexStar 8 and 8i SCT Telescopes

Celestron 94162 Solar Filter for NexStar 8 and 8i SCT Telescopes
The Celestron 94162 solar filter for NexStar 8 and 8i SCT telescopes is designed to work with Celestron's NexStar 8-inch SCT telescopes (Schmidt-Cassegrain Telescope). While this unit is made to work specifically with the NexStar 8 SE and NexStar 8i XLT Special Edition SCT telescopes, it can be used with other compatible 8-inch SCT telescopes as well.

This Celestron solar filter is made with Baader Astro Solar safety film, which is far superior to any existing glass, Mylar or polymer filters, leading to brighter, sharper, and higher contrast images. This filter is clear and homogenous, attains the optical performance of high-quality, plane-parallel glass filters, and is diffraction limited. The double-sided metal coatings have uniform density, providing good color balance across the entire field, which in turn ensures razor sharp images from edge to edge. The 94162 filter causes the sun to appear in its true color of neutral white, rather than blue or orange, with the sky adjacent to the solar limb a jet black. This unit reveals the constant changes that keep solar observing fun and interesting, allowing you to see the detail in sunspots, bright faculae near the limb, and the mottled areas known as granules, so that even small aperture telescopes can enjoy features of the sun.

The Astro Solar film in this filter is completely safe and durable, so it won't break like glass if dropped. This filter's ND-5 rating means the film transmits 1/100,000 of visible light (or 0.001-percent), while reflecting or blocking 99.999-percent of unwanted light. The film absorbs all ultraviolet rays, while its coating reflects infrared light, rendering both absolutely harmless. As an added assurance, Baader Astro Solar film has been declared safe for direct solar viewing by the German National Bureau of Standards for eye safety. Each 94162 solar filter is mounted in a durable ABS (Acrylonitrile butadiene styrene) plastic and rubber cell that won't break and is highly resistant to heat distortion, and is backed by a 1-year manufacturer's warranty.

Meteors (Sky & Telescope Observer's Guides)

Meteors (Sky & Telescope Observer's Guides)
Sky Publishing MeteorsGlimpsing occasional "shooting stars" is exhilarating. This book helps you learn how to start your own meteor-hunting program. In great detail, Neil Bone teaches you the origins and science of meteors, naked-eye-metor watching, and record keeping. A seasonal calendar of annual meteor showers and their characteristics is also included.

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