Celestron CGX 700 Maksutov Cassegrain Telescope CGX Mount - Page 11

2. Select the first star from the named star list. Use the Scroll buttons 6 (up) and 9 (down) on the keypad to scroll through the star names. They consist of the brightest and easiest stars to find. Press ENTER when you have selected a suitable star. If your mount is at least roughly polar aligned, the mount will slew to the approximate location of the star. The default selection of stars is on the west side of the meridian. If your sky is obstructed in the west or you wish to choose from stars on the east side of the meridian, press the MENU button on the keypad. 3. Using the direction keys, slew to the telescope to the selected named star and center it in the viewfinder of your telescope, then press ENTER. The mount will automatically adjust the motor speed for fine centering. 4. U sing the direction keys, center the star in the eyepiece of your telescope and press ALIGN. 5. S elect a second star from the list and repeat the process from steps 2-4. When prompted to add a Calibration Star, you can either press BACK to complete the alignment, or for best results, proceed to add a calibration star. For best results, add at least one Calibration Star. This will improve the pointing accuracy of your mount. 6. W  hen prompted to "Add Calibration Star", choose a star from the list and press ENTER. The mount will slew to the other side of the meridian to add a calibration star. 7. Center and align the star as you did with the first two alignment stars: Center in the viewfinder, press ENTER, center the star in your eyepiece, then press ALIGN. 8. W  hen prompted to add another calibration star, you may continue to add more, or press BACK to complete the alignment. Example of selecting and slewing to Messier M42 deep sky object: • Press DEEP SKY then ENTER • Scroll down (keypad 9) to Messier and press ENTER • Press "0-4-2" on the keypad and press ENTER The SkyTour (keypad 5) is a great way to explore the sky without consulting a star chart. The Tour function will generate a list of the most interesting objects to observe for your time and location. Polar Align the Mount The computerized go-to is capable of locating objects even if the mount is not perfectly polar aligned. However, polar alignment is necessary to achieve the best tracking accuracy of your mount. And it's essential to astrophotography. When polar aligned, an Equatorial mount tracks the sky in one motion, keeping the object centered in the eyepiece or camera. CGX's polar alignment system consists of an altitude adjuster and azimuth adjuster (Figure 8). An optional polar alignment scope is available from Celestron and attaches to the mount. The optional polar axis scope does not pass through the R.A. axis because that area is used for internal cabling. If you are not using the optional polar alignment scope, you can achieve a rough polar alignment by sighting through the viewfinder of your telescope, and adjusting the mount until you center Polaris in the eyepiece of your telescope. This will get you to within about three-quarters of a degree within the North Celestial Pole (NCP). Altitude Lock Knobs Selecting Objects Select from the object database categorized by Solar System, Stars, or Deep Sky. Within these menus (on keypad numbers 1, 2, and 3, you can select by object name or popular catalog number (such as M42 for Messier 42). Keypad 6 and 9 (up and down) allows you to scroll through any list in the hand control. Press ENTER to go to the selected object the list. Altitude Adjustment Knobs Azimuth Adjustment Knobs Figure 8 Polar alignment adjustment ENGLISH | 11