Sky telescope (84 resultados)

PAPERBACK. Condición: Good. 0933346417 Light moisture damage to a few of the first pages. Otherwise in great condition and it doesn't really affect the pamphlet. Price sticker residue on cover. Cover wear.

Softcover. Condición: Very Good. No Jacket. First Edition. Collectible publication in Very Good condition. The covers are tanned but in good shape. Bottom lower corner of pamphlet is lightly water stained. The staple binding is tight. Former owner's name and date is printed on the bottom front corner of the first page. The interior pages are unmarked. The book will be packaged to protect from the elements during shipment. Free 1st Class upgrade. Don't miss out on this handy publication - we are only a few decades from the next return of the comet in 2061! Get it now while it's hot.…

Soft cover. Condición: Very Good. Very Good condition. Pamphlet promoting the coming of Halley's Comet in 1985/86. Basic information, history, sky charts and viewing suggestions. 30 pages with black & white illustrations, charts, photos. Size: 8vo - over 7¾" - 9¾" tall.

Paper Back. Condición: Good.

paperback. Condición: Good. Water damage to bottom outer corner of pages. Book shows common (average) signs of wear and use. Binding is still tight. Covers are intact but may be repaired. We have 75,000 books to choose from -- Ship within 24 hours -- Satisfaction Guaranteed.

Condición: Very Good. Very Good condition. A copy that may have a few cosmetic defects. May also contain light spine creasing or a few markings such as an owner's name, short gifter's inscription or light stamp.

Soft cover. Condición: Excellent. No. A magazine style book on the history of exploration.A half Century of the Greatest Moments in Space Explration From Sputnik to Curiosity.

Condición: Near Fine. Laminated folder-style booklet. Near Fine condition. 2013 Edition. Laminated map and index which identifies more than 300 features of the Moon including craters, maria ("seas" of once-molten lava), and mountain ranges, along with the six Apollo landing sites.

A Master Plan for Mars NASA has gotten serious about exploring the red planet, with plans to send spacecraft there every two years throughout the next decade. By Leonard David Visions of Mars See the red planet as you've never viewed it before ? through the trained eyes of a planetary geologist. By Michael C. Malin Microbes in a Martian Meteorite? An Update an the Controversy In August 1996 NASA researchers said they had found possible signs of fossil bacteria in a rock from Mars. Since then the rock has been the focus of intense study, and proof seems ever more elusive. By Allan Treiman A Pair of High-Performance Maksutovs When it comes to price and optical quality, these Russian catadioptric telescopes are an outstanding value. S&T Test Report By Alan Dyer Wishful Thinking What do you want your astronomical software to do today? Astronomical Computing By Stuart J. Goldman Comet Awards and Their Social Impact Droves of amateurs probe the depths of the sky every clear, moonless night in search of comets and a shot at fame and fortune. Amateur Astronomers By Stephen James O'Meara i The Colors of Mars: Reality and Illusion Red, orange, brown: just what color is the red planet? Observer's Log By Thomas Dobbins and William Sheehan A Flying Dobsonian Can a large-aperture Dobsonian telescope really fly? If it's lightweight and compact it can. Telescope Techniques By lack Gelfand Rambling Through the Skies Blaming the Moon. By E. C. Krupp Sky & Telescope's Guide to the Sky New Beginnings ? Northern Hemisphere Sky Map Binocular Highlight: U and V Hydrae ? Sun, Moon, and Planets ? Southern Hemisphere Sky Map The Red Planet Is Back Mars is now bigger and brighter than it's been in almost a decade. Our observing guide tells you all you need to know. By Daniel M. Troiani Comet LINEAR's Odd Motion Currently near the celestial pole is a telescopic comet that will slow to a stop ? literally. By Roger W Sinnott Crescent Moon and Aldebaran The year's most spectacular lunar occultation for the Midwest and West takes place Sunday evening, April 18th. SkyWise By Jay Ryan gepflegtes Exemplar, nur kleine Lesespuren.…

Paperback. Condición: Good. cover worn, Single Issue.

Paperback. Condición: Good. cover worn, Single Issue.

Paperback. Condición: Good. cover worn, Single Issue.

Paperback. Condición: Good. cover worn, Single Issue.

Paperback. Condición: Good. 119 pages. cover worn, Single Issue.

Paperback. Condición: Good. cover worn, Single Issue.

Paperback. Condición: Good. cover worn, Single Issue.

Paperback. Condición: Good. 109 pages. cover worn, Single Issue.

Paperback. Condición: Good. cover worn, Single Issue.

Paperback. Condición: Good. cover worn, Single Issue.

Paperback. Condición: Good. 127 pages. cover worn, Single Issue.

Paperback. Condición: Good. cover worn, Single Issue.

Paperback. Condición: Good. 135 pages. cover worn, Single Issue.

Paperback. Condición: Good. 125 pages. cover worn, Single Issue.

Paperback. Condición: Good. cover worn, Single Issue.

Paperback. Condición: Good. cover worn, Single Issue.

Paperback. Condición: Good. cover worn, Single Issue.

Paperback. Condición: Good. 119 pages. cover worn, Single Issue.

At the Hearts of Barred Galaxies Seemingly immutable, barred spirals may merely be fleeting stages in the dynamic lives of galaxies. By Pierre Martin and Daniel Friedli Eyewitness to Stellar Evolution COVER STORY Most stars age gradually, taking millions or billions of years to Show permanent change. But a few have been caught in the midst of life crises. By James B. Kaler Awaiting the Storm A meteor shower or a meteor storm: what's in store for this November's Leonids? By Joe Rao Once in a Blue Moon From the Middle Ages to the game of Trivial Pursuit, a folklorist explores the meanings of "blue Moon." By Philip Hiscock High-Tech Newtonian Collimation Tool Projecting a reticle display along with its central beam, this laser collimator offers unique advantages over the competition. S&T Test Report By Alan French Sentinel of the Sky Armed with a modest telescope and CCD camera, Tucson amateur Roy A. Tucker joins the ranks of professional astronomers who have discovered near-Earth objects. Amateur Astronomers 1 By Edwin L. Aguirre ) Quintets, Sextets, and Septets: Exploring Hickson Compact Groups Dive Jeep into the spring sky to vier distant galaxy clusters from your backyard. Observer's Log By Steve Gottlieb 0 Woodshop Telescopes if you think you need a complete machine Shop to make good-looking telescopes. think again. TelescopeTechfliqUeS Bv Chuck Hards 9 Warming Up to Digital Imaging A long-time amateur astronomer finds more ways than one to warm up to today's electronic picture-taking. Astro Imaging By James Hannon 87 Rambling Through the Skies Canopus's bong legacy of nautical and celestial navigation By E. C. Krupp 90 Sky & Telescope's Guide to the Sky Welcoming the Stars of Spring ? Northern Hemisphere S Map ? Binocular Highlight: Three Shields of Orion ? Sun, Moon, and Planets ? Southern Hemisphere Sky Map 100 Hunting for Equilateral Triple Stars How to find a dozen eye-catching triangles in the skr. By Roger W. Sinnott 106 SkyWise By Jay Ryan gepflegtes Exemplar, nur kleine Lesespuren.…

30 Supernovae, Neutrinos, and Amat Astronomers Somewhere in our galaxy a time bomb is ticking down.When the next supernova blows up, will you be ready? FEATURE By Leif J. Robinson NASA is betting that its newest Great Observatory will do for X-ray astronomy what the Hubble Space Telescope has done for optical astronomy ? open our eyes to a new universe. FEATURE By Martin Elvis From a modest altitude of 176 miles, astronauts aboard the Space Shuttle Columbia will loft the Chandra X-ray Observatory one-third of the way to the Moon. FEATURE By Steven A. Hawley 56 Xray Astronomy's Golden Age The new millennium will be a time of high excitement for high-energy astronomers as the X-ray Multi mirror Mission and the Astro E spacecraft join Chandra in orbit. How lang does it take for totality to touch every Spot an Earth? COMPUTERS IN ASTRONOMY By Jean Meeus A new mini-industry has Sprung up: bed-and-breakfast facilities that cater to amateur astronomers and their families. AMATEUR ASTRONOMERS 1 By Edwin L. Aguirre 116 5 Observers in the path of totality this month could help solve several eclipse mysteries. OBSERVER'S LOG By Stephen James O'Meara A Canadian amateur's home-built 16-inch reflector weighs less than ordinary telescopes a fraction of the size. TELESCOPE TECHNIQUES I By Gary Wolanski lt has never been easier to explore the fascinating world of astronomical spectroscopy with backyard telescopes. ASTRO IMAGING 1 By Maurice Gavin 140 Field Guide to Supernova Spectra With this kit, you're ready to identify Stars that explode. ASTRO IMAGING By Leif J. Robinson gepflegtes Exemplar, nur kleine Lesespuren.…

,Front-Cover Photo,Jupiter's Satellite Io, ,Spectrum,Tweaks Here and There,"Robinson, Leif J." ,Focal Point,Star Party Crasher,"Kirkland, Gordon" News Notes,Bok Globules in Another Galaxy, News Notes,Three-Planet Solar System Discovered, News Notes,Record-Setting Redshift Survey, News Notes,Updating the Fate of the Universe, ,News Notes,The Measure of Eros, Mission Update,Mission Update,"McDowell, Jonathan" Feature,The Life of a Neutron Star,"Winn, Joshua N." ,Feature,Galileo: An Image Gallery III,"Beatty, J. Kelly" Feature,An Interconnected Universe? Exploring the Topology of the Cosmos,"Falk, Dan" ,S&T Test Report,Solar Filters: Which Is Best?,"MacRobert, Alan M." ,S&T Test Report,More Magnification for Observing,"East, George H." ,S&T Test Report,Less Magnification for Photography,"Cook, Chris" ,New Product Showcase,New Product Showcase, S&T Test Report,Under One Roof,"Hanon, David" ,Computers in Astronomy,Screen Shot: Planet Earth,"Mosley, John E." ,Computers in Astronomy,Astronomy Online: Views and Reviews,"Goldman, Stuart J." ,Software Showcase,Software Showcase, ,Books & Beyond,"The Night Sky Observer's Guide, by George Robert Kepple and Glen W. Sanner","Johnson, Lee" ,Books & Beyond,"Sky Atlas 2000.0, Second Edition, by Wil Tirion and Roger W. Sinnott","Hewitt-White, Kenneth" ,Amateur Astronomers,A Unique Temple to the Sun,"O'Meara, Stephen James" Amateur Astronomers,Star Trails: A Teaching Pioneer,"Levy, David H." Rambling Through the Skies,Fish Tail,"Krupp, E. C." Guide to the Evening Sky ,Summer's Battling Constellations,"Schaaf, Fred" ,Guide to the Evening Sky ,Northern Hemisphere's Sky, ,Guide to the Evening Sky ,Binocular Highlight,"Seronik, Gary" ,Small-Scope Sampler,Cuddling Up to the Scorpion,"French, Sue" ,Stars & Planets,Stars & Planets,"Schaaf, Fred" ,Guide to the Evening Sky ,Exotic Names and Effects, Guide to the Evening Sky ,Southern Hemisphere's Sky,"Schaaf, Fred" ,Celestial Calendar,July's Partial Eclipse of the Moon,"Sinnott, Roger W." ,Observer's Log,An Amateur's Night on Mount Wilson,"Nakamoto, David" ,Observer's Log,Deep-Sky Notebook,"Whitman, Alan" ,Observer's Log,Lunar Notebook,"Wood, Charles A." ,Observer's Log,Observer's Notebook: Mars Takes Center Stage,"Seronik, Gary" ,Telescope Techniques,New Twist on Tilted-Mirror Telescopes,"Francis, John" ,Astro Imaging,Imaging Totality,"Aguirre, Edwin L." ,Gallery,Scorpius Complex I,"Stecker, Michael" gepflegtes Exemplar, nur kleine Lesespuren.…