![Precise GoTo](/images/new-backgrounds/102277/10227747x1.webp)
Note: Some of the databases contain thousands of objects, and can therefore take several minutes to return the closest objects.
Precise GoTo
The Advanced Series telescopes have a precise goto function that can assist in finding extremely faint objects and centering objects closer to the center of the field of view for astrophotography and CCD imaging. Precise Goto automatically searches out the closest bright star to the desired object and asks the user to carefully center it in the eyepiece. The hand control then calculates the small difference between its goto position and its centered position. Using this offset, the telescope will then slew to the desired object with enhanced accuracy. To use Precise Goto:
1. Press the MENU button and use the Up/Down keys to select Precise Goto. | SCOPE SETUP |
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• Choose Database to select the object that you want to observe from any of |
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| SETUP | |
the database catalogs listed or; |
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•Choose RA/DEC to enter a set of celestial coordinates that you wish to slew
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| AZM POSITIVE | |
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2. Once the desired object is selected, the hand control will search out and display |
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| AZM NEGATIVE | ||
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| ALT POSITIVE | |||
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| the closest bright star to your desired object. Press ENTER to slew to the bright |
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| ALT NEGATIVE | |
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| alignment star. |
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| FILTER LIMITS | |||
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3. | Use the direction buttons to carefully center the alignment star in the eyepiece. |
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| ALTMAX IN LIST | |
4. | Press ENTER to slew to the desired object. |
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| ALTMIN IN LIST | |||
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| DIRECTION BUTTONS | ||||
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Scope Setup Features |
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| AZM BUTTONS | |
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| ALT BUTTONS | ||
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Setup |
| GOTO APPROACH | |||||
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| AZM APPROACH | ||
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time and location parameters (such as time zone and daylight savings). |
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| ALT APPROACH | |
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| AUTOGUIDE RATES | ||||
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move in the eyepiece. There are two values for each axis, positive and negative. Positive is the amount of compensation applied when you press the button, in order to get the
gears moving quickly without a long pause. Negative is the amount of compensation applied when you release the button, winding the motors back in the other direction to resume tracking. Normally both values should be the same. You will need to experiment with different values (from
To set the
Filter Limits – When an alignment is complete, the telescope automatically knows which celestial objects are above the horizon. As a result, when scrolling through the database lists (or selecting the Tour function), the hand control will display only those objects that are known to be above the horizon when you are observing. You can customize the object database by selecting altitude limits that are appropriate for your location and situation. For
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