51
A.guide
X 10
A.guide
Y 10
APPLICATION
Setting for Autoguider
The STAR BOOK ONE can be used for auto guiding in conjunction with an external autoguiding system that is compatible with the
SBIG autoguider. Available setting rates for compensating guide errors are described here.
Auto guiding allows you to automatically guide a telescope on an equatorial mount by means of an autoguider, which translates
signals from a CCD video camera attached on a guide scope, to achieve uniform and precise tracking speed of the mount. The
advantages of the autoguider are most apparent during long exposure astrophotography.
1
Pressing the Mount button will turn up the brightness of the button and enables you to choose subsidiary
menus. The subsidiary menu appears as you press the left or right direction key each time. Display the “A.
Guide X or Y” (X = RA and Y = DEC)” with the left or right direction key. The setting is done individually. The
settings for autoguider are defaulted to “X: 10, Y: 10”. This manual describes the setting of RA first, but you
can start from either direction, RA or DEC.
2
Pressing the up or down key will increase or decrease the value by 10 increments and pressing the plus or
minus button will increase or decrease by one increment. The values for the autoguider are available between
0 and 99 both in RA and DEC.
The new values are saved as indicated. It is not recommended for use with backlash compensation. It may
cause interference within tracking.
The optimum value for the compensation may vary according to
equipment used. Choose the most effective rate to make your
autoguiding smoothest.
The direction keys are available to move the mount while this position
is used.
It autoguiding signals are detected, the
direction key corresponding to the input
signal will light to indicate the status of
the operation visually.
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 smal-
ler value if you move slower to make small compensation, or enter a
larger value if you move faster to make a large compensation.
Main Scope
Guide Scope
CCD Video Camera
(D)SLR Camera
External Autoguider
Monitor
STAR BOOK ONE
Power Source
Power Source
Power Source
Power Source
Procedure:
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
Setting Rates for Compensation
