Fig. 35: Jupiter and its four largest moons. The moons can be observed in a different position every night.

Fig. 36: Saturn has the most extensive ring structure in our Solar System.

Fig. 37: The Pleiades is one of the most beautiful open clusters.

Planets

Planets change positions in the sky as they orbit around the Sun. To locate the planets on a given day or month, consult a monthly astronomy magazine, such as Sky and Telescope or Astronomy. You can also consult Autostar for information about planets. Scroll to the "Object: Solar System" menu and scroll through the lists of planets. When a planet you are interested in displays, press ENTER. Use the Scroll keys to display information about the planet, such as the planet's coordinates, and the rise and set times Tip:( enter a date in the Date menu and you can determine if a planet(s) will be visible during the night of the entered date by checking its rise and set times). Listed below are the best planets for viewing through the DS-2000 Series.

Venus is about nine-tenths the diameter of Earth. As Venus orbits the Sun, observers can see it go through phases (crescent, half, and full) much like those of the Moon. The disk of Venus appears white as Sunlight is reflected off the thick cloud cover that completely obscures any surface detail.

Mars is about half the diameter of Earth, and appears through the telescope as a tiny reddish- orange disk. It may be possible to see a hint of white at one of the planet’s Polar ice caps. Approximately every two years, when Mars is closest to Earth in its orbit, additional detail and coloring on the planet's surface may be visible.

Jupiter is the largest planet in our solar system and is 11 times the diameter of Earth. The plan- et appears as a disk with dark lines stretching across the surface. These lines are cloud bands in the atmosphere. Four of Jupiter’s 16 moons (Io, Europa, Ganymede, and Callisto) can be seen as “star-like” points of light when using even the lowest magnification (Fig. 35). These moons orbit Jupiter so that the number of moons visible on any given night changes as they circle around the giant planet.

Saturn is nine times the diameter of Earth and appears as a small, round disk with rings extending out from either side (Fig. 36). In 1610, Galileo, the first person to observe Saturn through a telescope, did not understand that what he was seeing were rings. Instead, he believed that Saturn had “ears.” Saturn’s rings are composed of billions of ice particles rang- ing in size from a speck of dust to the size of a house. The major division in Saturn's rings, called the Cassini Division, is occasionally visible. Titan, the largest of Saturn’s 18 moons can also be seen as a bright, star-like object near the planet.

Deep-Sky Objects

Star charts can be used to locate constellations, individual stars and deep-sky objects. Examples of various deep-sky objects are given below:

Stars are large gaseous objects that are self-illuminated by nuclear fusion in their core. Because of their vast distances from our solar system, all stars appear as pinpoints of light, irrespective of the size of the telescope used.

Nebulae are vast interstellar clouds of gas and dust where stars are formed. Most impressive of these is the Great Nebula in Orion (M42), a diffuse nebula that appears as a faint wispy gray cloud. M42 is 1600 light years from Earth.

Open Clusters are loose groupings of young stars, all recently formed from the same diffuse nebula. The Pleiades is an open cluster 410 light years away (Fig. 37).

Constellations are large, imaginary patterns of stars believed by ancient civilizations to be the celestial equivalent of objects, animals, people, or gods. These patterns are too large to be seen through a telescope. To learn the constellations, start with an easy grouping of stars, such as the Big Dipper in Ursa Major. Then, use a star chart to explore across the sky.

Galaxies are large assemblies of stars, nebulae, and star clusters that are bound by gravity. The most common shape is spiral (such as our own Milky Way), but galaxies can also be ellip- tical, or even irregular blobs. The Andromeda Galaxy (M31) is the closest spiral-type galaxy to our own. This galaxy appears fuzzy and cigar-shaped. It is 2.2 million light years away in the constellation Andromeda, located between the large “W” of Cassiopeia and the great square of Pegasus.

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DS-2000 specifications

The Meade DS-2000 is a versatile and user-friendly telescope that caters to both beginners and seasoned astronomers alike. Known for its exceptional performance and ease of use, the DS-2000 series has become a popular choice among amateur stargazers. This telescope features a robust design coupled with advanced technologies that enhance the overall observing experience.

One of the standout features of the Meade DS-2000 is its sturdy mount, which provides stability during observations. This stability is crucial for clearer and more detailed views of celestial objects, as it minimizes vibrations and shakes that can occur while tracking objects across the night sky. The telescope typically comes with an adjustable aluminum tripod to further enhance stability and can handle varying weights and instruments.

The DS-2000 series utilizes an electronically controlled altazimuth mount, allowing users to easily navigate the sky with its automatic tracking capabilities. This intuitive design ensures that even novice astronomers can locate and follow astronomical objects with minimal effort. The built-in computer control allows users to access a database of thousands of celestial bodies, making it easy to select targets for viewing.

In terms of optics, the Meade DS-2000 features high-quality glass optics with multi-coated lenses. This ensures superior light transmission and contrast, resulting in bright, clear images of the Moon, planets, and deep-sky objects. The telescope typically offers a range of apertures, making it suitable for various observing preferences and conditions.

Furthermore, the Meade DS-2000 is often equipped with a 9mm or 25mm eyepiece, enabling users to achieve magnifications adequate for observing different types of celestial phenomena. The addition of a built-in red-dot finder makes it easier to aim and locate objects in the night sky.

Portability is another significant characteristic of the DS-2000 series. Its lightweight design allows astronomers to transport it easily to different observing locations, making spontaneous stargazing adventures possible, whether in the backyard or at a dark-sky site.

In summary, the Meade DS-2000 combines solid construction, user-friendly features, and advanced technology, making it an excellent choice for anyone interested in exploring the night sky. With its impressive optics, reliable tracking capabilities, and enhanced portability, the DS-2000 series provides an enjoyable and rewarding astronomical experience.
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