iOptron PR EQ manual Select and Slew Main Menu/Select and Slew, The Database Contents

you to choose the second star. If the star you choose is too close to the first one, the system will let you choose another one. When you aligned with the second star, two-star align is finished.

“Three-Star Align” will increase the accuracy even higher and requires an even wider view of the sky. This basically asks you to choose yet another third star to align after two-star align.

7.Select and Slew (Main Menu/Select and Slew)

Now you can select any object in the database, and SmartStar®-PR will get you there (if it is above the horizon). For more details, check the section on “SmartStar®-PR Select and Slew”

8.The Database Contents

The numbers of the objects in the database are listed below: Solar system: 10

Deep sky objects:

Named Deep sky Objects: 76

Messier Catalog: 110

NGC IC Catalog: 5386

UGC Catalog: 12939

MCG Catalog: 29004

Caldwell Catalog: 109

Abell Catalog: 2712

Herschel Catalog: 400 Comets: 190

Asteroids: 4096 Stars:

Named Stars: 191

Double Stars: 40

GCVS Variable Stars: 38624

SAO Catalog: 26584 Constellations: 88

User Objects: 256

9.Firmware Upgrade

Firmware in the controller can be upgraded from you PC. New firmware versions are released to fix bugs and add new functions. For latest firmware release and instructions, please check: http://www.ioptron.com/support.aspx?catalog=28