Celestron 4SE instruction manual Tips for Using Sky Align, Auto Two-Star Align

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5.If the finderscope has been properly aligned with the telescope tube, the alignment star should now be visible inside the field of view of the eyepiece. The hand control will ask that you center the bright alignment star in the center of the eyepiece and press the ALIGN button. This will accept the star as the first alignment position. (There is no need to adjust the slewing rate of the motors after each alignment step. The NexStar automatically selects the best slewing rate for aligning objects in both the finderscope and the eyepiece).

6.For the second alignment object, choose a bright star or planet as far as possible from the first alignment object. Once again use the arrow button to center the object in the finderscope and press ENTER. Then once centered in the eyepiece press the ALIGN button.

7.Repeat the process for the third alignment star. When the telescope has been aligned to the final stars, the display will read "Match Confirmed". Press UNDO to display the names of the three bright objects you aligned to, or press ENTER to accept these three objects for alignment. You are now ready to find your first object.

Tips for Using Sky Align

Remember the following alignment guidelines to make using Sky Align as simple and accurate as possible.

Be sure to level the tripod before you begin alignment. The time/site information along with a level tripod will help the telescope better predict the available bright stars and planets that are above the horizon.

Remember to select alignment stars that are as far apart in the sky as possible. For best results make sure that the third alignment star does not lie in a straight line between the first two stars. This may result in a failed alignment.

Don’t worry about confusing planets for stars when selecting alignment objects. SkyAlign works with the four brightest planets (Venus, Jupiter, Saturn and Mars) as well as the Moon. In addition to the planets, the hand control has over 80 bright alignment stars to choose from (down to 2.5 magnitude).

Rarely SkyAlign will not be able to determine what three alignment objects were centered. This sometime happens when a bright planet or the Moon passes near one of the brighter stars. In situations like these it is best to try to avoid aligning to either object if possible.

Be sure to center the objects with the same final movements as the direction of the GoTo Approach. For example, if the scope normally finishes a GoTo with the front of the scope moving right and up, you should center all three alignment objects in the eyepiece using the right and up arrow buttons (the up/down arrows reverse at slew rates of 6 or lower). Approaching the star from this direction when looking through the eyepiece will eliminate much of the backlash between the gears and assure the most accurate alignment possible.

Auto Two-Star Align

As with Sky Align, Auto Two-Star Align requires you to enter all the necessary time/site information as before. Once this information is entered, NexStar will prompt you to select and point the telescope at one known star in the sky. The NexStar now has all the information it needs to automatically choose a second star that will assure the best possible alignment. Once selected the telescope will automatically slew to that second alignment star to complete the alignment. With the NexStar set up outside with all accessories attached and the tripod leveled, follow the steps below to align the telescope:

1.Once the NexStar is powered on , Press ENTER to begin alignment.

2.Use the Up and Down scroll keys (10) to select Auto Two-Star Align and press ENTER.

3.The hand control will display the last time and location information that was entered into the hand control. Use the Up and Down buttons to scroll through the information. Press ENTER to accept the current information or press UNDO to manually edit the information (see Sky Align section for detailed instruction on entering time/site information).

4.The display will now prompt you to select a bright star from the displayed list on the hand control. Use Up and Down buttons (6 and 9 on the keypad) to scroll to the desired star and then press ENTER.

5.Use the arrow buttons to slew the telescope to the star you selected. Center the star in the finderscope and press ENTER. Finally, center the star in the eyepiece and press ALIGN.

6.Based on this information, the NexStar will automatically display the most suitable second alignment star that is above the horizon. Press ENTER to automatically slew the telescope to the displayed star. If for some reason you do not wish to select this star (perhaps it is behind a tree or building), you can either:

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Contents INSTRUCTION MANUAL INTRODUCTION ASSEMBLYHAND CONTROL TELESCOPE MAINTENANCE Hand Control Command TreeAPPENDIX A - TECHNICAL SPECIFICATIONS TELESCOPE BASICSSome of the many standard features of the NexStar include Accessory Tray / Leg Brace Battery CompartmentON/OFF Switch NexStar 4 SEPowering the NexStar Assembling the NexStarThe Hand Control Figure 3-2 - The Rear Cell with Visual Accessories Star Pointer InstallationThe Eyepiece EyepieceStarPointer DiagonalRemoving the Optical Tube Star Pointer OperationFigure 3-3 The Star Pointer Finderscope with Mounting Bracket Quick Release KnobAttaching the NexStar to the Tripod The NexStar Hand Control Alignment Procedure Hand Control OperationDefinition Named StarsHints Sky AlignAuto Two-Star Align Tips for Using Sky AlignHelpful Hint Two Star AlignmentOne-Star Align Solar System AlignTips for Using Solar System Align EQ North / EQ South AlignmentEQ AutoAlign EQ Two-Star Align Improving Pointing AccuracyEQ One-Star Align EQ Solar System AlignSync Object CatalogUndo Sync Selecting an ObjectFinding Planets Slewing to an ObjectTour Mode Constellation TourDirection Buttons Setup ProceduresNine available slew speeds Rate ButtonConnecting a Camera to the NexStar Mount CameraSave Database Db Camera Wizard Controlling your CameraObject Type Identify Scope Setup FeaturesPrecise GoTo MENU Helpful Utility FeaturesHint Sun MenuSet Mount Position ALIGNMENT NexStar SELIST NexStar Menu TreeFig 5-2a - Actual image orientation as seen with the unaided eye Image OrientationFig 5-2b - Reversed from left to right, as viewed through the eyepieceCalculating Magnification FocusingDetermining Field of View General Observing Hints The celestial sphere seen from the outside showing R.A. and DEC The Celestial Coordinate SystemMotion of the Stars Aligning the NexStar 4 on a Wedge Polar AlignmentWedge Align moves in right ascension and declinationPhotography with the NexStar Attaching a Camera to the NexStarThe position of the Big Dipper changes throughout Finding the North Celestial Polethe year and the night Observing the Planets Observing the MoonObserving the Sun Lunar Observing HintsSeeing Conditions Observing Deep Sky ObjectsSolar Observing Hints TransparencyCare and Cleaning of the Optics Page Page Specification Appendix A - Technical SpecificationsElectronic Specifications Software SpecificationsAppendix B - Glossary of Terms Page Appendix C - RS-232 Connection Appendix D - Maps of Time Zones Page Page Page Page Page Page Page CELESTRON TWO YEAR WARRANTY Copyright 2006 Celestron All rights reserved Celestron 2835 Columbia Street Torrance, CA Tel. 310 Fax. 310Products or instructions may change without notice or obligation #11049-INST Printed in China $10.00