User manual CELESTRON SUPER C8

[. . . ] 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. Or if you are an experienced amateur, you will appreciate the comprehensive database of over 4, 000 objects, including customized lists of all the best deep-sky objects, bright double stars and variable stars. No matter at what level you are starting out, the NexStar will unfold for you and your friends all the wonders of the Universe. Some of the many standard features of the NexStar include: · · · · · Incredible 4°/second slew speed. Fully enclosed motors and optical encoders for position location. [. . . ] The display will ask you to enter a number between 1-25 to identify the object. Press ENTER again to save this object to the database. The NexStar can also be used as a spotting scope on terrestrial objects. Fixed land objects can be stored by saving their altitude and azimuth relative to the location of the telescope at the time of observing. Since these objects are relative to the location of the telescope, they Save Land Object: 23 are only valid for that exact location. To save land objects, once again center the desired object in the eyepiece. Scroll down to the "Save Land Obj" command and press ENTER. The display will ask you to enter a number between 1-25 to identify the object. Press ENTER again to save this object to the database. - Dec: You can also store a specific set of coordinates for an object just by entering the R. A. Scroll to the "Enter RA-DEC " command and press ENTER. Pressing ENTER again will reverse the direction of the hand control buttons from their current state. Direction Buttons will only change the eyepiece rates (rate 1-6) and will not affect the slew rates (rate 7-9). Light Control ­ This feature allows you to turn off both the red key pad light and LCD display for daytime use to conserve power and to help preserve your night vision. Select Model ­ The first time the NexStar is powered on, the hand control display allows you to select your NexStar from a list of different models. If for some reason the incorrect model was selected or you wish to use your hand control on a different NexStar model, the Select Model utility feature allows you to re-select the proper NexStar model from the displayed list. Once the correct NexStar model has been selected the power needs to be restarted before beginning the alignment procedure. The Select Model feature will return the hand control to its original factory settings. Parameters such as backlash compensation values along with slew and filter limits will be reset. However, stored parameters such as user defined objects will remain saved even after the model has been changed. 25 NexStar Ready MENU TRACKING MODE ALT-AZ EQ NORTH EQ SOUTH OFF RATE SIDEREAL SOLAR LUNAR VIEW TIME-SITE SIDEREAL TIME FILTER LIMITS ALTMAX IN LIST ALTMIN IN LIST UTILITIES SETUP TIME/SITE ANTI-BACKLASH SLEW LIMITS DIRECTION BUTTONS LIGHT CONTROL SELECT MODEL RS-232 USER OBJECTS GOTO SKY OBJ SAVE SKY OBJ ENTER RA & DEC GOTO LAND OBJ SAVE LAND OBJ GET ALT-AZ GOTO ALT-AZ GET RA-DEC GOTO RA-DEC ALIGNMENT AUTO ALIGN POINT TUBE NORTH & LEVEL CITY DATABASE United States Choose State Choose City Enter Time Enter Date International Choose Country Choose City CUSTOM SITE Enter Long/Lat Enter Time Enter Date LIST NAMED STAR NAMED OBJECT ASTERISMS TOUR VARIABLE STAR DOUBLE STAR CALDWELL MESSIER NGC SOLAR SYSTEM SAO TWO-STAR ALIGNMENT LEVEL TUBE SELECT STAR 1 CENTER STAR 1 SELECT STAR 2 CENTER STAR 2 QUICK ALIGN POINT TUBE NORTH & LEVEL SELECT LOCATION ENTER TIME ENTER DATE NexStar Menu Tree: The following figure is a menu tree showing the sub-menus associated with the primary command functions 26 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 wiring is as follows: 39 APPENDIX D ­ MAPS OF TIME ZONES 40 41 CELESTRON TWO YEAR WARRANTY A. Celestron warrants this telescope to be free from defects in materials and workmanship for two years. Celestron will repair or replace such product or part thereof which, upon inspection by Celestron, is found to be defective in materials or workmanship. As a condition to the obligation of Celestron to repair or replace such product, the product must be returned to Celestron together with proof-of-purchase satisfactory to Celestron. [. . . ]