Activating The App; Moving The Telescope - Celestron StarSense Explorer DOB Quick Setup Manual

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9. Continue adjusting the collimation thumbscrews until the
refl ection of the secondary mirror is centered within the
refl ection of the primary mirror as shown above. Re-tighten
the three locking thumbscrews until snug. When you are
fi nished, the view through the collimation cap should look
as shown.

Activating the App

1. Before you take your telescope outside, download the
StarSense Explorer by SkySafari
Search for "Celestron StarSense Explorer" in the Apple App
Store or Google Play. The app is large, so we recommend
downloading it while connected to Wi-Fi.
2. Once you have downloaded the app, locate the orange
postcard in your telescope box. Launch the app. When
prompted, enter the activation code on the postcard to activate
the app. Your code will unlock up to 5 devices.
Attaching the Smartphone
Download the app from the or
before your first observing session .
When prompted, enter the unique unlock code below to
enable telescope control on your device.
app to your mobile device.
TM
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NEEDS ADJUSTMENT
10. Your telescope's optics are now collimated and ready for use.
You can also confi rm a telescope's collimation at night by
pointing the telescope at a bright star at high magnifi cation.
Center the star in the fi eld of view and slightly defocus the
star—it should appear like a circle with a hole in the middle.
(The "hole" is the shadow from the secondary mirror.) If the
hole is not centered within the circle, you'll need to make
additional adjustments to mirrors' alignment.

Moving the Telescope

1. The StarSense Dobsonian telescope moves freely in altitude
(up-and-down) and azimuth (left-to-right). Simply move the
tube by pushing it in the desired direction. You can use the
knob handle at the front of the telescope for a hand grip.
2. If the altitude motion moves too freely, or the telescope moves
up or down with no force being applied, tighten the altitude
tensioning knob. Conversely, if it takes much force to move the
telescope upwards or downwards, loosen the knob.
1. Remove the large cap covering the mirror on the front of
the StarSense dock.
2. Pull open the spring-loaded slider on the top of the phone
dock and set the phone into the holder so it is fl ush with
the bottom lip of the phone holder. Slowly release the
slider to secure the phone in place.
GOOD COLLIMATION
ENGLISH | 11