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Chapter 5 APPLICATION
Setting Rates for Compensation
Tips for Better Autoguiding
Using the AutoGuider
AutoGuide
The STAR BOOK TEN can be used for auto guiding in conjunction with a CCD video camera installed on a guide scope and a built-in
autoguider (sold separately) as an expansion unit for the STAR BOOK TEN. An external autoguider which is compatible with the ST series
autoguiders from SBIG is available also. You can set up rates for compensation to guide the telescope accurately.
For an operation of the autoguider unit, please refer to instruction manuals provided by the autoguider manufacturer.
When you use the autoguider, it is recommended to refrain from using the following functions.
• Atmospheric Refraction
• P-PEC
• Backlash Compensation
In addition, the following options are recommendable.
Direction Key: X-Y
Mount Type: Equatorial with Polar Setting
Main Scope
Guide Scope
CCD Video Camera
(D)SLR Camera
Monitor
External Autoguider
STARBOOK TEN
What is Auto guiding?
Auto guiding allows you to guide a telescope on
an equatorial mount automatically by means of an
autoguider, which compensates signals from a CCD
video camera attached on a guide scope to achieve
uniform and precise tracking speed of the equatorial
mount. The advantages of the autoguider are most
apparent during long-exposure astrophotography.
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In “Mount Setting” menu, choose “AutoGuider” with the or direction key and press the
key (or the
key) to call up the dialog box.
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IMove the cursor to available entry spaces
and enter values for compensation with the
or directionkey. Using the or zoom
key will increase or decrease the number 10
each within the range.
The value of the compensation can be set between 0 and 99 in one increment
both in RA and DEC.(0.1x of sidereal rate)
Enter a smaller value if you move the mount slower to make small compensation,
or enter a larger value if you move the mount faster to make a larger compensa-
tion.
The optimum value for the compensation may vary according to equipment used.
Choose the most effective rate to make your auto guiding smoothest.
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Then, press the
key twice (or press the
key twice alternatively) to save and leave the dialog
box.
If autoguiding signals are detected by the STAR
BOOK TEN through its autoguider port for
corrections, the direction key corresponding to
the input signal will light to indicate the status of
the operation visually.
The illustration above shows the autoguider compensates signals in the R.A- (descending) direction.
0 : Keep sidereal rate (No compensation is made.)
1 : ±0.1x of sidereal rate
2 : ±0.2x of sidereal rate
3 : ±0.3x of sidereal rate
:
:
99 : ±9.9x of sidereal rate
Power Source
Power Source
Power Source
Power Source
The settings are defaulted to „RA: 10“ and „DEC: 10“