Celestron CGEM II 700 Maksutov-Cassegrain Telescope CGEM II EQ Mount Manual 5l - Page 13

1. Liquid Crystal Display (LCD) Window: Has a four-line, 18 character display screen that has red backlighting for comfortable viewing of telescope information and scrolling text. 2. Align: Instructs the hand control to begin the process of aligning your telescope. 3. Direction Keys: Allows complete control of the CGEM II mount in any direction. Use the direction keys to center objects in the eyepiece or manually slew telescope. 4. Catalog Keys: The CGEM II has a key on the hand control to allow direct access to each of the main catalogs in its 40,000+ object database. Your mount contains the following catalogs in its database: • Solar System - All 7 planets in our Solar System plus the Moon, Sun and Pluto. • Stars - Custom lists of all the brightest stars, double stars, variable stars and asterisms. • Deep Sky - Custom lists of all the best galaxies, nebulae and clusters as well as the complete Messier and select NGC objects. 5. Identify: Searches the CGEM II databases and displays the name and offset distances to the nearest matching objects. 6. Menu: Displays the many setup and utilities functions, such as tracking rate and user defined objects and many others. 7. O ption (Celestron Logo): Can be used in combination with other keys to access more advanced features and functions. 8. Enter: Pressing ENTER allows you to select any of the CGEM II functions, accept entered parameters and slew the telescope to displayed objects. 9. Back: Pressing BACK will take you out of the current menu and display the previous level of the menu path. Press BACK repeatedly to get back to a main menu or use to erase data entered by mistake. 10. Sky Tour: Activates the tour mode, which seeks out all the best objects in the sky and automatically slews the CGEM II to those objects. 11. Scroll Keys: Used to scroll up and down within any of the menu lists. A double arrow symbol on the right side of the LCD indicates that the scroll keys can be used to view additional information. 12. Motor Speed: Slews the telescope faster or slower when the direction buttons are pressed. 13. Object Info: Displays coordinates and useful information about objects selected from the CGEM II database. 14. Micro USB Port: Allows you to connect your telescope to a computer, for use with software programs for pointand-click slewing capability and updating firmware via PC. Hand Control Operation This section describes the basic hand control procedures needed to operate all Celestron computerized telescopes. These procedures are grouped into three categories: Alignment, Setup and Utilities. The alignment section reviews the initial telescope alignment as well as finding objects in the sky. The setup section discusses changing parameters such as tracking mode and tracking rate. Finally, the last section reviews all of the utilities functions such as calibrating your mount, polar alignment and backlash compensation. Alignment Procedures In order for the telescope to accurately point to objects in the sky, it must first be aligned with known positions (stars) in the sky. With this information, the telescope can create a model of the sky, which it uses to locate any object with known coordinates. There are many ways to align your telescope with the sky depending on what information the user is able to provide: • Two Star Align uses the entered time/location information and allows the user to select which two alignment stars the telescope will automatically slew to. • One Star Align uses the same time/location information but only uses one star for alignment. • Solar System Align will display a list of visible daytime objects (planets and the Moon) available to align the telescope. • Quick-Align will ask you to input all the same information as you would for the Two Star Align procedure. However, instead of slewing to the alignment stars for centering and alignment, the telescope bypasses this step and simply models the sky based on the information given. • Last Alignment restores your last saved star alignment and switch position. Last Alignment also serves as a good safeguard in case the telescope should lose power. Startup Procedure Before any of the described alignments are performed, the CGEM II mount needs to be positioned so that the index marks are aligned on both the right ascension and declination axes. Once the index position has been set, the hand control will display the last entered date and time information stored in the hand control. 1. Press ENTER to begin the alignment process. 2. The hand control will prompt the user to set the mount to its index position. Move the telescope mount, either manually or with the hand control, so the index marked in both R.A. and Dec are aligned. Press ENTER to continue. • The hand control will then display the last entered local time, time zone and date. • Use the Up/Down keys (11) to view the current parameters. ENGLISH | 13