Saturn and How to Observe ItSpringer Science & Business Media, 30 de nov. de 2005 - 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. |
Conteúdo
Saturn as a Planet | 5 |
Telescopes and Accessories | 51 |
Factors that Affect Observations | 75 |
Visual Impressions of Saturns Globe and Ring System | 89 |
Drawing Saturns Globe and Rings | 111 |
Methods of Visual Photometry and Colorimetry | 123 |
Determining Latitudes and Timing Central Meridian Transits | 133 |
Observing Saturns Satellites | 141 |
A Primer on Imaging Saturn and Its Ring System | 147 |
Association or Lunar and Planetary Observers ALPO Saturn Section Observing Forms | 164 |
Bibliography | 172 |
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ALPO Saturn Section ansa aperture Apparition of Saturn appear Association of Lunar astronomical belts and zones Bicolored Aspect Cassegrain Cassegrain Reflectors Cassini's division catadioptrics cd/m² color filters Colorimetry craters Credit dark detail diameter Dione drawing E ansa Earth edgewise Enceladus Encke's Equation equatorial mounting eyepiece field of view Figure focal length focal ratios Globe and Ring globe of Saturn H₂O-ice Iapetus images of Saturn Imaging 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 outer particles phenomena Photometry planet Planetary Observers ALPO polar refractor regions relative ring components ring F Roche limit Saturn's atmosphere Saturn's globe Saturn's satellites Saturnian solar system southern hemisphere spacecraft stars surface brightness Tethys Titan viewing conditions visible visual magnitude visual observers Visual Photometry Wansa wavelengths webcam white spots