Celestron CGEM II 700 Maksutov-Cassegrain Telescope CGEM II EQ Mount Manual 5l - Page 16

• If you have aligned your telescope using the Quick-Align method, you can use Re-Align to align on actual objects in the sky. This will improve the pointing accuracy of your telescope without having to re-enter additional information. • If you have used the computer-assisted polar alignment method and have manually moved the mount, it may be necessary to re-align the mount for improved pointing accuracy. To replace an existing alignment star with a new alignment star: 1. S elect the desired star (or object) from the database and slew to it. 2. C arefully center the object in the eyepiece. 3. O nce centered, press the BACK button until you are at the main menu. 4. W  ith CGEM II Ready displayed, press the ALIGN key on the hand control to select Alignment Stars from the list of options. 5. The display will then ask you which alignment star you want to replace. Use the UP and Down scroll keys to select the alignment star to be replaced. It is usually best to replace the star closest to the new object. This will space out your alignment stars across the sky. 6. Press ALIGN to make the change. Object Catalog Selecting an Object Once the telescope is properly aligned, you can choose an object from any of the catalogs in the NexStar+ hand control's database. The hand control has a key designated for each category of objects in its database; Solar System objects, Stars and Deep Sky objects. • Solar System - The Solar System catalog will display all the planets (and Moon) in our Solar System that are currently visible in the sky. To allow the Sun to be displayed as a selectable object in the database, see the Sun Menu option in Scope Setup Menu. • Stars - The Stars catalog displays custom lists of all the brightest stars, double (Binary) stars, variable stars, constellations and selected asterisms. • Deep Sky - The Deep Sky catalog displays a list of all the best Galaxies, Nebulae and Clusters, as well as the complete Messier and select NGC objects. There is also an alphabetical list of all deep sky objects in order by their common name. Use the scroll keys to scroll through the catalogs to find the object you want to view. When scrolling through a long list of objects, holding down either the UP or DOWN key will allow you to scroll through the catalog rapidly. Slewing to an Object Once the desired object is displayed on the hand control screen, you have two options: • Press the OBJECT INFO Key. This will give you useful information about the selected object such as magnitude, constellation and extended information about the most popular objects. • Use the UP/DOWN arrow buttons to scroll through the displayed object info. • Use the BACK button to return to the object database. • Press the ENTER Key. This will automatically slew the telescope to the coordinates of the object displayed on the hand control. While the telescope is slewing to the object, the user can still access many of the hand control functions (such as displaying information about the object). NOTE: T he Messier, NGC and SAO catalogs require the user to enter a numeric designation. Once you have selected the appropriate catalog button and selected the Messier, NGC or SAO catalog, you will see a flashing cursor indicating you are in numeric entry mode. Enter the catalog number for the object you want to view. Press ENTER to command the telescope to slew to the object or hold the OPTION button (the Celestron logo) and press OBJECT INFO to see information about the object you selected. Caution: Never slew the telescope when someone is looking into the eyepiece. The telescope can move at fast slew speeds and may hit an observer in the eye. Sky Tour Button The CGEM II mount includes a tour feature which allows you to choose from a list of interesting objects based on the date and time in which you are observing. The automatic tour will display only those objects that are within your set catalog filters limits. To activate the Tour feature, press the SKY TOUR key on the hand control. 1. Press the SKY TOUR button on the hand control. 2. Use the SCROLL buttons to select Best of Tonight. 3. The CGEM II mount will automatically slew in azimuth to its starting position which will help minimize the chance of wrapping the power cord during the tour. 4. The hand control will display the best objects to observe that are currently in the sky. • To see information and data about the displayed object, press the OBJECT INFO key. Press it once to display the coordinates of the object. Press it again to display the coordinates of the object. Press it again to display the text description. Press BACK to return to the previous screen. 16 | ENGLISH