Tip:
If the "ENTER to Sync" fea- ture is accessed by mistake (holding the ENTER key for more than 2 seconds), press MODE to return to the previous screen.
JTrain Drive: All telescopes have a certain amount of "backlash" (looseness in the interplay of gears). This menu allows you to compensate for the backlash in the the R.A. and Dec
JTracking Rate: Changes the speed at which the telescope tracks targets in the sky.
a.Sidereal: The default setting for Autostar II; sidereal rate is the standard rate at which stars move from East to West across the sky due to the rotation of the Earth.
b.Lunar: Choose this option to properly track the Moon over long observing sessions.
c.Solar: Choose this option when observing the Sun.
c.Custom: Allows entry of
Note: Custom Tracking Rate allows you to enter values from
JGuiding Rate: Allows you to change the base slew speed, 1x. Enter a percent- age of the speed (less than 100%) and press ENTER. This function may be use- ful in guiding the telescope during CCD and
JDec Guiding: Allows a user using an autoguider to disengage autoguider inputs. Allows you to select N & S, North only, South only, and off.
JReverse L/R: Reverses the functions of the Left and Right Arrow keys for con- trolling the telescope's motion (i.e., the Right key moves the telescope to the left).
JReverse U/D: Reverses the functions of the Up and Down Arrow keys for con- trolling the telescope's motion (i.e., the Up key moves the telescope down).
JHome Sensor: Turns off or on the True North sensor, if preferred, for Easy, One- Star, and
JGPS Alignment: Allows three options. Select "Off" if you wish to align the tele- scope manually (turns off GPS). Select "On" (default setting) if you wish to auto- matically align your telescope and want the telescope to get the GPS fix when it is needed during alignment. Select "At Start Up" if you want the telescope to get a GPS fix when the telescope is powered up.
JR.A. PEC: Allows you to perform periodic error correction on the R.A. drive worm gear. Must be performed with a
JHigh Precision: If High Precision is turned on, when looking for a faint celestial object (e.g., a nebula or galaxy), Autostar II first slews to a nearby bright star and displays "ENTER to Sync." Center the star in the eyepiece, then press ENTER. At that point the telescope has a high precision alignment to that part of the sky and it then slews to the object that was originally requested.
Time: Changes the time entered into Autostar II. Setting the correct time is critical for Autostar II to properly calculate locations and events. Time may be set to "AM," "PM," or
Targets: Switches between Astronomical targets and Terrestrial targets. If "Astronomical" is selected, the telescope tracking motor is activated and any object you observe in the sky will remain centered in the eyepiece. If "Terrestrial" is select- ed, the tracking motor is turned off.
Date: Changes the date used by Autostar II. This function is useful to check events in
the past or future. For example: Set the Date menu for a day three months in the
future. Then check the "Select Item: Event" menu for the Sunset time on that date. See EVENT MENU, page 35.
38 | Looking at or near the Sun will cause irreversible damage to your eye. Do not point this telescope at or near the |
| Sun. Do not look through the telescope as it is moving. |
