iOptron 7201, 7200 instruction manual Sync to Target, Align

5.1.6. Constellations

This catalog consists of 88 modern constellations. They are listed alphabetically. A list is attached in Appendix E.

5.1.7. Custom Objects

It can store up to 60 user-defined objects, including comets.

5.1.8. Enter R.A. DEC

Here you can go to a target by entering its R.A. and DEC numbers.

5.2. Sync to Target

This operation will match the telescope's current coordinates to Target Right Ascension and Declination. It can be used to correct GOTO pointing error. After slewing to an object, press MENU - then scroll to “Sync to Target” and press ENTER. Follow the screen to do the sync. Using this function will re- align the telescope to the selected object. Multiple syncs can be performed if needed. This operation is most useful to find a faint star or nebula near a bright star.

“Sync to Target” will only work after “Select and Slew” is performed. You can change the moving speed to make the centering procedure easier. Simply press a number (1 through 9) key to change the speed. The default moving speed is 64X.

“Sync to Target” is similar to “One Star Align”, except that you choose the object to “sync” to. “One Star Align” chooses the star/object for you.

5.3. Align

This function is used for aligning the telescope. The hand controller provides two polar alignment methods. “Polar Align” uses a set of 2 bright stars for polar alignment. This provides a viable polar alignment approach for those who can’t see the polar. The “Two Star Polar Align” is used to refine the polar alignment using the AccuAlignTM polar scope. The system also provides three star alignment methods: “SolarSys Align”, “One Star Align”, and “Multi-Star Align”. The mount has to be at Zero Position before performing any star alignment.

5.3.1. Pole Star Position

This function displays the position of the Pole Star for Quick Polar Alignment using iOptron® AccuAlignTM polar scope. The position of Polaris is displayed in northern hemisphere or Sigma Octantis in southern hemisphere.

5.3.2. Polar Align

This BrightStar Polar Alignment allows you do a polar alignment without seeing the Pole Star. Press the MENU button, then select “Align” and “Polar Align”. The HC will display a list of bright alignment stars near the meridian, with name, magnitude, azimuth and altitude position. Select one that is visible and high in altitude as the Alignment Star A. Follow the HC instruction to move the Star A to the center of the eyepiece with the combination of using Latitude Adjustment Knob and “◄” or “►” button. Press ENTER to confirm the settings. Next, select a bright star that is close to the horizon as the Alignment Star B. Center it using the Azimuth Adjustment Knob and “◄” or “►” button (The “▲” and “▼” buttons are not used here). Press ENTER to confirm the settings.

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