Celestron Advanced VX Mount and Tripod Celestron PWI Telescope Control Softwar - Page 10

Important Note

Page 10 highlights

Select a star on the screen by clicking it. CPWI will highlight bright alignment stars that are well-positioned in the sky as suggestions, but you can choose any star that you can easily identify in the sky. Next, click GoTo on the Select Target screen. The mount will automatically slew toward the selected object. If you polar aligned your EQ mount (or AZ mount with EQ wedge) or started in the "level-North" position for your AZ mount, then the telescope should point close to the selected object. Otherwise, the telescope will likely not be pointing near the selected object. Next, use the manual Slew Controls to center the selected object in the telescope's field of view. Adjust the RATE for different motor speeds. Rates 1-6 are useful for centering in the telescope and finderscope. Rates 6-9 are useful for high-speed slewing and aren't recommended for centering. Selecting the dots in the corners of the Slew Controls will slew both axes at the same time. Also, when the Slew Controls window is on screen and selected, you can use the arrow keys on your keyboard to slew the telescope. Centering objects will be easiest if you first center them in your (aligned) finderscope, and then center them in your telescope's field of view. Once the object is centered in the telescope's field of view, press "Centered" in the Center Target window. The object will now become an alignment point for the mount model created by CPWI, and you will see this indicated as a "1" in "Pointing Model" in the Data bar at the top of the screen. The object location in the SkyViewer will also now be marked with a cross, this indicates that the object has been used as an alignment reference. You will then be prompted to select another object in the SkyViewer, and you will repeat the process of selecting an object, having the telescope GoTo the object's approximate position, and using the Slew Controls to center the object in the telescope's field of view. IMPORTANT NOTE: Whenever you center an object for alignment, make sure to always use the Up and Right direction buttons for the final slew commands. This will minimize the effect of gear backlash to obtain the most accurate mount model. To get a good mount model, we recommend using at least 4 alignment points, with each point in a different quadrant of the sky. Use CPWI's suggested alignment stars to get a good selection of stars across the sky. After you have aligned on 4 stars, click "Finish" in the Select Target window. You can add additional alignment references at any time by clicking on a star, selecting GoTo from the object's pop-up window, centering it in the telescope's field of view using the manual Slew Controls, and then selecting "Add to Model" from the object's pop-up window. You can also add additional alignment points by selecting "Add Reference(s)" from the Alignment section in the Menu on the left. If you are using an AZ mount and have completed the alignment, you are ready to use CPWI. If you are using an EQ mount (or AZ mount on an EQ wedge) and have completed the alignment, we recommend completing an All-Star Polar Alignment for final setup. 8

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8
Select a star on the screen by clicking it. CPWI will highlight bright alignment stars that are well-positioned in the sky as suggestions,
but you can choose any star that you can easily identify in the sky. Next, click GoTo on the Select Target screen. The mount will
automatically slew toward the selected object. If you polar aligned your EQ mount (or AZ mount with EQ wedge) or started in the
“level-North” position for your AZ mount, then the telescope should point close to the selected object. Otherwise, the telescope will
likely not be pointing near the selected object.
Next, use the manual Slew Controls to center the selected object in the telescope’s field of view.
Adjust the RATE for different motor speeds. Rates 1-6 are useful for centering in the telescope and
finderscope. Rates 6-9 are useful for high-speed slewing and aren’t recommended for centering.
Selecting the dots in the corners of the Slew Controls will slew both axes at the same time. Also, when
the Slew Controls window is on screen and selected, you can use the arrow keys on your keyboard to
slew the telescope.
Centering objects will be easiest if you first center them in your (aligned) finderscope, and then center
them in your telescope’s field of view. Once the object is centered in the telescope’s field of view, press
“Centered” in the Center Target window. The object will now become an alignment point for the mount
model created by CPWI, and you will see this indicated as a “1” in “Pointing Model” in the Data bar at
the top of the screen. The object location in the SkyViewer will also now be marked with a cross, this
indicates that the object has been used as an alignment reference.
You will then be prompted to select another object in the SkyViewer, and you will repeat the process of
selecting an object, having the telescope GoTo the object’s approximate position, and using the Slew
Controls to center the object in the telescope’s field of view.
IMPORTANT NOTE:
Whenever you center an object for alignment, make sure to always use the Up and
Right direction buttons for the final slew commands. This will minimize the effect of gear
backlash to obtain the most accurate mount model.
To get a good mount model, we recommend using at least 4 alignment points, with each point in a
different quadrant of the sky. Use CPWI’s suggested alignment stars to get a good selection of stars across the sky. After you have
aligned on 4 stars, click “Finish” in the Select Target window.
You can add additional alignment references at any time by clicking on a star, selecting GoTo from the object’s pop-up window,
centering it in the telescope’s field of view using the manual Slew Controls, and then selecting “Add to Model” from the object’s
pop-up window.
You can also add additional alignment points by selecting “Add Reference(s)” from the Alignment section in the Menu on the left.
If you are using an AZ mount and have completed the alignment, you are ready to use CPWI. If you are using an EQ mount (or AZ
mount on an EQ wedge) and have completed the alignment, we recommend completing an All-Star Polar Alignment for final setup.