Nexstar gps 8 manual

Celestron power seeker telescope instruction manual eq 80 20 pages. The NexStar ushers in a whole new generation of computer automated technology. Simple and friendly to use, the NexStar is up and running after locating just two alignment stars. If you are new to astronomy, you may wish to start off by using the NexStar's built-in Sky Tour feature, which commands the NexStar to find the most interesting objects in the sky and automatically slews to each one.

Page 5: Quick Setup AC outlet. Using any other adapter may damage the electronics and will void your manufacturer's warranty. Page 6 The NexStar will automatically pick an alignment star and slew the telescope close to that star. Once there, the display will ask you to use the arrow buttons to aim the Star Pointer at the star.

If the star is not visible perhaps behind a tree , press UNDO to select a new star. It is best to carry the telescope by holding it from the lower portion of the fork arm and from the bottom of the base. Do not try to move the optical tube at this time. Weighing less than 10 pounds, this tripod can go anywhere, from your backyard to a remote observing site. To set up the tripod: Hold the tripod with the head up, away from the ground.

This will make it more convenient to attach the necessary accessories as well as remove the front lens cover and install batteries when they are needed. Page The Star Pointer Finderscope The Star Pointer is the quickest and easiest way to point your telescope exactly at a desired object in the sky. It's like having a laser pointer that you can shine directly onto the night sky.

The Star Pointer is a zero magnification pointing tool that uses a coated glass window to superimpose the image of a small red dot onto the night sky. If the Star Pointer is not aligned, take notice of where the red dot is relative to the bright star.

Without moving the main telescope, turn the Star Pointer's azimuth and altitude alignment controls until the red dot is directly over the alignment star. Direction Keys: Allow complete control of the NexStar in any direction. Use the direction keys to move the telescope to the initial alignment stars or for centering objects in the eyepiece. Page Hand Control Operation Once the telescope is powered on, the LCD display will guide you through all the steps to align the telescope properly.

Before the telescope is ready to be aligned, it should be set up in an outside location with all accessories eyepiece, diagonal and Star Pointer attached and lens cover removed as described in the Assembly section of the manual.

Page 15 NexStar will automatically choose two stars for alignment and roughly center the stars in the field of view of the Star Pointer. Once again the telescope should be set up outside with all accessories attached and the lens cover removed. Now that the telescope is properly aligned, you can choose an object from any of the catalogs in the NexStar's extensive database. The hand control has a key 4 designated for each of the catalogs in its database.

There are two ways to select objects from the database: scrolling through the named object lists and entering object numbers. Page Slewing To An Object Object information can be obtained without having to do a star alignment.

After the telescope is powered on, press the UNDO key. Pressing any of the catalog keys allows you to scroll through object lists or enter catalog numbers as described above. Page Direction Buttons While holding that button down, press the opposite directional button. This will increase the slew rate to approximately 1.

This feature will not function if the telescope is currently set at a speed rate of 8 or The slower slew rates 6 and lower move the motors in the opposite direction than the faster slew rates 8 and 9.

Page Tracking Rate The NexStar stores celestial objects to its database by saving its right ascension and declination in the sky. This way the same object can be found each time the telescope is aligned. Once a desired object is centered in the eyepiece, simply scroll to the "Save Sky Obj" Page Goto R. By default wrap should be turned off when powering the NexStar with batteries.

Page Telescope Basics A telescope is an instrument that collects and focuses light. The nature of the optical design determines how the light is focused. Some telescopes, known as refractors, use lenses. Other telescopes, known as reflectors, use mirrors. The Schmidt-Cassegrain optical system or Schmidt-Cass for short uses a combination of mirrors and lenses and is referred to as a compound or catadioptric telescope.

Page Focusing power. Although this is the maximum useful magnification, most observing is done in the range of 20 to 35 power for every inch of aperture which is to times for the NexStar 8 telescope. Page General Observing Hints Never look through window glass.

Glass found in household windows is optically imperfect, and as a result, may vary in thickness from one part of a window to the next.

This inconsistency can and will affect the ability to focus your telescope. Page Astronomy Basics Up to this point, this manual covered the assembly and basic operation of your telescope. However, to understand your telescope more thoroughly , you need to know a little about the night sky. This section deals with observational astronomy in general and includes information on the night sky and polar alignment.

This daily trek is not the Sun moving as early astronomers thought, but the result of the Earth's rotation. The Earth's rotation also causes the stars to do the same, scribing out a large circle as the Earth completes one rotation. Page Polar Alignment With Optional Wedge Even though the NexStar can precisely track a celestial object while in the Alt-Az position, it is still necessary to align the polar axis of the telescope the fork arm to the Earth's axis on rotation in order to do long exposure astro photography.

Page Finding The North Celestial Pole For example, in the northern hemisphere all stars move around the north celestial pole. Elements Monocular Manual. Elements ThermoCharge 10 Manual. Elements ThermoCharge 6 Manual. Elements ThermoTorch 10 Manual. Elements ThermoTorch 5 Manual. Elements ThermoTrek Manual. Elements TrekGuide Lite Manual. Elements TrekGuide Manual. Elements WindGuide Manual. Elite Sport Optics Catalog. ExploraScope Guide.

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