5/1999, Quassars

What's a Blue Moon? The trendy definition of "blue Moon" as the second full Moon in a month can be traced to a mistake in Sky & Telescope. Fifty-three years later, we set the record straight! By Donald W Olson, Richard Tresch Fienberg, and Roger W Sinnott The Rise and Fall of Quasars 1 COVER STORY Astronomers are on the verge of unraveling the mystery of these cosmic powerhouses. By G. Mark Voit Pluto Reconsidered What exactly did Clyde Tombaugh discover in 1930 - a planet, a planet wannabe, or the Kuiper Belt's top dog? By J. Kelly Beatty Gamma-Ray Burst Hunters Catch a Whopper A brief, titanic explosion some 9 billion light-years away flared as bright as 9th magnitude on January 23rd. There's a chance we may see this saure event a second time. A"Hot"Telescope Gets Even Hotter Meade's reinvention of the ETX features a "brain" that provides capabilities never before seen in a small telescope. S&T Test Report By Dennis di Cicco Pillars in the Sky Atmospheric "diamond dust" can produce towers of light in the heavens. Astronomical Computing 1 By Rodney Kubesh An Eccentric of the Very Best Kind Meet George Alcock, a retired schoolteacher from England who is internationally renowned for his visual discoveries of five comets and five novae. Amateur Astronomers 1 By Kay Williams Refractor Red Meets the Herschel 400 Explore the faint and the fabulous with the little telescope that could. Observer's Log 1 By Jay Reynolds Freeman A Simplified Hyperbolic Astrograph Find out how you can banish coma from your astro images. Telescope Techniques 1 By Alejandro Di Baja Going to the Limit The work of a Canadian amateur proves that backyard observers can look deeper than professionals could only a generation ago. Astro Imaging 1 By Bradley E. Schaefer Spectrum Everyone's telescope. By Leif J. Robinson Focal Point Amateur of the century. By Edmund Fortier Letters 50 & 25 Years Ago Star Trails Imager of the sky. By David H. Levy Rambling Through the Skies The bear necessities of the northern sky. By E. C. Krupp Sky & Telescope's Guide to the Evening Sky Springtime Sights Near and Far o Northern Hemisphere Sky Map o Binocular Highlight: Globular Cluster M3 o Sun, Moon, and Planets o Southern Hemisphere Sky Map A Blizzard of Asteroids On any clear night you can see scores of minor planets with a small telescope. Here's how. By Roger W Sinnott Uranus and Neptune in 1999 Bluish Neptune is in Capricornus, just two binocular fields west of Uranus. By Roger W Sinnott The Moon Occults Regulus The first-quarter Moon passes in front of the Lion's Heart 011 May 21st. By Alan M. MacRobert SkyWise By Jay Ryan gepflegtes Exemplar, nur kleine Lesespuren

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📚 Bücher

Autor(en):

Sky & Telescope (english)

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Antiquariat-Artemis

Bestell-Nr.:

B00027351

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Zeitschriften, Sky & Telescope

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