Saturn and How to Observe It
Springer Science & Business Media, 3 de abr de 2007 - 182 páginas
I received my ?rst telescope, a 60 mm (2. 4 in) Unitron refractor, as a surprise Christmas gift from my father when I was 10 years old,and over the next several years, I spent countless hours exploring the heavens, seeking out virtually every celestial object I could ?nd with this small aperture. I consider myself quite for- nate to have been blessed with a dark,unobstructed observing site for most of my childhood,unlike many of my astronomical friends who were always trying to get to a remote location away from city lights to do worthwhile deep-sky observing. I only had to carry my telescope and star charts just a few feet away into my backyard. By the time I entered high school,the night sky had become a delightfully fam- iar place. I had tracked down virtually all of the galaxies,nebulae,and star clusters within reach of my little instrument,and I split most of the double stars that were theoretically possible with its exquisite optics. Eventually,I earned suf?cient funds working part-time jobs (and saving school lunch money) to purchase a premium 10. 2 cm (4. 0 in) refractor, another Unitron that I quickly put through its paces, once again surveying my favorite deep-sky objects. Despite the fact that I could see all of them much better with increased aperture,I soon recognized how virtually changeless they were, so I started expanding my observational pursuits.
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Telescopes and Accessories
Factors that Affect Observations
Visual Impressions of Saturns Globe and Ring System
Drawing Saturns Globe and Rings
Methods of Visual Photometry and Colorimetry
Determining Latitudes and Timing Central Meridian Transits
Observing Saturns Satellites
A Primer on Imaging Saturn and Its Ring System
Association of Lunar and Planetary Observers ALPO
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ALPO Saturn Section ansa=W ansa aperture Apparition of Saturn appear Association of Lunar belts and zones Bicolored Aspect Cassegrain Cassegrain reflector Cassini’s division catadioptrics color filters Colorimetry contrast craters Credit dark detail diameter drawing E ansa Eansa Earth edgewise Enceladus Encke’s Equation equatorial mounting eyepiece field of view Filter _________ focal length focal ratios globe and rings globe of Saturn H2O-ice Iapetus images of Saturn instrument Intensity Scale Julius L Jupiter Laboratory/Space Science Institute light Lunar and Planetary magnification Mimas moon NASA/Jet Propulsion Laboratory/Space Newtonian North numerical Observations of Saturn orbit orbital period outer particles phenomena planet polar refractor regions relative ring components ring F ring system Roche limit Saturn’s atmosphere Saturn’s globe Saturn’s rings Saturn’s satellites Saturnian solar system southern hemisphere spacecraft stars surface brightness telescope Tethys Titan viewing conditions visible visual magnitude visual observers Wansa wavelengths webcam white spots