Nexstar SynScan instruction manual Utility Functions, Saving an object to the database

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Utility Functions

Utility Functions are useful tools that provide simple, one-step processes to your SynScanTM:

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. Park Scope - This moves the telescope to the Home position.

Inquire Version - This submenu displays the hardware, firmware, and database version of the SynScanTMhand control. Ifthe hand control is connected to the mount, this menu will also display the firmware version of motor control board. Use the scroll keys to view the version numbers.

PEC Training - See section Periodic Error Correction for information.

LCDlLED Tuning - This submenu allows adjustments of the following: the brightness of the LCD backlit, the darkness of the LCD lettering, and the brightness of the LED backlit of the keys. Use the scroll keys to select the desired tunning. Press the RIGHT or LEFT directional key to increase or decrease value.

S e t u p Functions

The Setup functions allow you to change any system variable or information regarding location, time, date, and alignment configurations. To access the Setup Functions, either press SETUP key on the key pad or scroll to SETUP under menu option using the scroll keys. Below lists the different types of functions available to you, and their purposes.

Date -Allows you to change the date entered at the initial setup. Time -Allows you to change the current time.

Observing site -Allows you to change the current location.

Daylight Savings -Allows you to change the Daylight Savings option. Alignment -Allows you to perform the star alignment.

Set Backlash - This feature allows you to insert a value for each axis to compensate for its backlash. For better pointing accuracy, it is important that the backlash value is set to be equal or greater than the real amount of backlash between the gears. The default setting of the backlash is 10' 00" (10 arcmin. and 0 arcsec.). Use the numeric keys to enter the desired value and press the RIGHT directional key to move the cursor to the next digit. First set the value for R.A. Press ENTER to proceed to Dec.

Set Tracking

Sid. Rate: This activates tracking in Sidereal rate (R.A. Tracking).

 

Lunar Rate: This activates tracking in Lunar rate (R.A. Tracking).

1Solar Rate: This activates tracking in Solar rate (R.A. Tracking).

PEC + Sidereal Rate: Sidereal rate with Periodic Error Compensation-.

Stop Tracking: This stops the tracking instantly.

Auto Guide Speed - When using an autoguider, this sets the guiding speed to I X , 0.75X, 0.5X, 0.25X, or 0.125X sidereal rate.

Using the User Defined Database

SynScanl" allows you to save up to 25 objects in the user defined database.

Saving an object to the database

1.In the Main Menu, use the scroll keys to scroll down the list until you find Object Catalog. Press ENTER.

2.Select User Defined in the Object Catalog scroll list and press

ENTER.

The User Defined menu can also be accessed by pressing the quick reference hot key "USER" (number 9) Fig I

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Contents Page Page Powering the SynScanTM 1ntroduction to the SynScanTMSynScanTM Hand Control Directional keys Mode keysScoll Keys Fig.e Dual Purpose keysAID Tial SetupStar ~ l i ~ n r n e n t Three-Star AlignmentTwo-Star Alignment Pointing Accuracy Enhancement PAE One-Star AlignmentSelecting an Object 0bject database in the SynScanTMSaving an object to the database Utility FunctionsRecalling an user defined object Identifying an Unknown ObjectPeriodic Error Correction Linking with a ComputerT o Guiding Page \ mm@1 SynScan F~rmwareLoader Main Menu SynScanTwSPECIFICATIONS Movement Eyepiece view Page Page Hand Control Description PC Command Ascii Response Sending a track rate through RS232 to the hand control Additional RS232 Commands

SynScan specifications

The Nexstar SynScan is a highly regarded mount and telescope system, catering to both amateur astronomers and seasoned professionals alike. Renowned for its ease of use, portability, and advanced technology, it significantly enhances the stargazing experience.

One of the standout features of the Nexstar SynScan is its computerized GoTo mount. This system allows users to easily locate and track celestial objects. With an extensive database of over 40,000 celestial bodies, including stars, planets, nebulae, and galaxies, the SynScan offers an intuitive way to explore the night sky. The built-in database also includes user-defined objects, making it versatile for personalized astronomical pursuits.

The SynScan's Dual-Axis Tracking mechanism is another major advantage. It accurately tracks celestial objects as they move across the sky due to the Earth's rotation, ensuring that users can view objects for extended periods without needing to manually adjust the telescope. This functionality is particularly beneficial for astrophotography, as it reduces image blurring caused by slight movements.

In terms of technology, the Nexstar SynScan utilizes a precision motor drive and encoders to enhance tracking accuracy. The mount features AC servo motors, which provide smooth and silent operation. The included hand control is user-friendly, with a backlit screen that allows for night-time navigation without disturbing your surroundings.

The system's ease of setup and portability are important characteristics, particularly for users who wish to observe in remote locations. The Nexstar mount is lightweight and compact, making it easy to transport and assemble. Users can quickly set up the telescope in a matter of minutes, an advantage for spontaneous night-sky explorers.

Additionally, the SynScan offers various power options, including the ability to use AA batteries or an external power supply. This flexibility ensures that users can operate their telescope in different environments without worrying about finding power sources.

Lastly, the Nexstar SynScan is compatible with popular astronomy software, enabling users to enhance their observing sessions with additional features such as software-guided observations and advanced tracking capabilities. This integration with technology allows for a rich observing experience where the vastness of the universe is made more accessible.

In conclusion, the Nexstar SynScan stands out for its combination of advanced technology, user-friendliness, and portability, making it a top choice for anyone looking to delve deeper into the wonders of astronomy.
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