SKY-WATCHER SynScan Instruction Manual
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SKY-WATCHER SynScan Instruction Manual

Nexstar synscan instruction manual
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INSTRUCTION MANUAL

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  • Page 1 INSTRUCTION MANUAL...
  • Page 2 NEVER USE YOUR TELESCOPE TO LOOK DIRECTLY AT THE SUN. PERMANENT EYE DAMAGE WILL RESULT. USE A PROPER SOLAR FILTER FIRMLY MOUNTED ON THE FRONT OF THE SUN. WHEN OBSERVING THE SUN. PLACE A DUST CAP OVER YOUR FINDERSCOPE OR REMOVE IT TO PROTECT YOU FROM ACCIDENTAL EXPOSURE.
  • Page 3 The hand control allows you to point your telescope at a specific object or even tour the skies at the touch of a button. The user friendly menu system allows automatic slewing to over 13,400 objects.
  • Page 4 The directional keys allow complete control of the telescope at almost any step in the operation. These controls are locked out when the telescope is slewing to an object. They are normally used to initially align, center objects in the eyepiece, and manual guiding. The left and right directional keys can also be used to move the text curserwhen entering data to the hand control.
  • Page 5 Pressing any key turns it back on. 6. Enter the telescope's current latitudinal and longitudinal position using the numeric keypad. First enter the longitudinal coordinate, followed by the latitudinal coordinate. Use the scroll keys to choose between W or E, and N or S. Pressing the left or right directional keys will move the cursor to the previous or next number.
  • Page 6 Now look through the eyepiece and adjust the telescope so that the object is centered in the field of view of the eyepiece. Press ENTER to confirm.
  • Page 7 3. Adjust the telescope so that the reference object is in the center of the eyepiece or CCD view. 4. Press and hold down the ESC key for name of the reference object will appear in a blinking mode (3 times).
  • Page 8 Variable Stars Includes 20 will-known variable stars. Selecting an Object Once the telescope has been aligned. You can now access and view the 13,400 different objects in the SynScanTM database. There are three methods of selecting a celestial object to view: TOUR Takes you on a preset tour across your current sky.
  • Page 9 Utility Functions Utility Functions are useful tools that provide simple, one-step processes to your Show Position This displays the coordinates of the location where the telescope is currently pointed. Display Time This displays the local time and local Sidereal time.
  • Page 10 Press ENTER to save. If the R.A./Dec coordinate entered does not exist, the SynScan respond when the ENTER key is pressed. Check the entry for correct coordinatc. 7. To store an...

  • Page 11: Periodic Error Correction

    Required acccssory: producing at least 300X magnification in combination with your telescope. The true field of view should not exceed 10 arc min. See "Choosing the appropriate eyepiece" in the HEQ5lEQ6 manual for more information on calculating the field of view.
  • Page 12 PEC Training 1. Perform the accurate 2. Slew or manually point the telescope to a star with smaller DEC coordinate. This object will be used as the guide star. Activate Sidereal Tracking from the Setup Menu (see Setup Functions). Once the tracking has started, press ESC to go back to the Setup Menu.
  • Page 13 PC link cable that comes with the SynScan DC power supply with tip positive. Preparing your PC for the update 1. Create a folder for all SynScan'" related files on your computer and name it SynScan. 2 . V i s i t Support http://www.SkywatcherTelescope.net/Support.
  • Page 14 "Update" and "HC. Version" buttons Flrmware F l e 6. When the download is complete, the status will show "Update Complete". The SynScan hand control is now updated to the newest firmware. Generally it takes about 30 seconds to update the firmware.
  • Page 15 Show Position Display Time Observ. Site Park Scope Daylight Saving Inquire Version Alignment PEC Training -Star Align. LCDlLED 2-Star Align. 3-Star Align. Backlash Tracking Sidereal Rate Lunar Rate Solar Rate PEC + Sidereal Rate Stop Tracking L ~ u t o Guide Speed 0.75x 0.25X...
  • Page 16 SynScanTw SPECIFICATIONS Power Supply: Motor type and resolution: Slew speeds: Gear Ratio: Tracking Rates: Tracking Modes: Alignment Method: Database: Pointing Accuracy: 11 to 15 V DC 2Amp (Tip positive) Microstep driven 1.8" stepper motors. Resolution: 0.144 arc (or 9,024,000 Rate 0.5X Rate Rate 2 = 8X...
  • Page 17 "cone" error that causes the pointing inaccuracy. To find out, simply move the telescope in R.A. axis by pressing the Left or Right direction key. If the star can be moved into the eyepiece view without adjusting the telescope setup.
  • Page 18 6. Loosen the R.A. lock knob and rotate the telescope around the R.A. axis until the counterweight shaft is parallel to the ground. 7. Using the direction key on the hand control, adjust the telescope in on the R.A. lines of the reticle eyepiece Wlthout moving the R.A.
  • Page 19 14. Repeat step 7 to 13 until Polaris remains in the center of the eyepiece, or moves slightly around the center, when the mount is rotate about the R.A. axis. This calibration method can be applied on both refracting and reflecting telescopes. Optical path of different telescope designs does not telescope tube and tube and vise versa (Fig.A-I 0).
  • Page 20 The SynScan " telescopes are designed to receive control commands sent from a computer via the RS-232 port and RS-232 cable. Once connected, the popular planetarium software program. The computer at 9600 bitslsec, no parity and stop bit. All angles are communicated with 16 bit angle...
  • Page 21 Physical Connection Diagram RJ-11 Connector Additional RS232 Commands Sending a track rate through 1. Multiply the desired tracking rate (arc seconds /second) by 4. For example: if the desired track rate is 120 arc then the TRACKRATE 2. Separate TRACKRATE TrackRateHighByte"256 then TrackRateHighByte...
  • Page 23 NEVER USE YOUR TELESCOPE TO LOOK DIRECTLY AT THE SUN. PERMANENT EYE DAMAGE WILL RESULT. USE A PROPER SOLAR FILTER FIRMLY MOUNTED ON THE FRONT OF THE TELESCOPE FOR VIEWING THE SUN. WHEN OBSERVING THE SUN, PLACE A DUST CAP OVER YOUR FINDERSCOPE OR REMOVE IT TO PROTECT YOU FROM ACCIDENTAL EXPOSURE.

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