Sky-Watcher S21205 User Manual

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PART VI: Observing the sky

6.4 Cooling the Telescope

Telescopes require at least 10 to 30 minutes to cool down to outside air temperature. This

may take longer if there is a big difference between the temperature of the telescope and

the outside air. This minimizes heatwave distortion inside telescope tube (tube currents).

Allow a longer cooling time for larger optics.

6.5 Adapting Your Eyes

Do not expose your eyes to anything except red light for 30 minutes prior to observing.

This allows your pupils to expand to their maximum diameter and build up the levels of

optical pigments, which are rapidly lost if exposed to bright light. It is important to observe

cover the non-used eye with your hand or an eye patch. Use averted vision on faint ob-

jects: The center of your eye is the least sensitive to low light levels. When viewing a faint

object, don’t look directly at it. Instead, look slightly to the side, and the object will appear

brighter.

6.8 Wireless Telescope Control

The VIRTUOSO GTi mount will be equipped with a telescope optical tube for astronomy observa-

tion purpose. Please refer to the telescope optical tube manual for use of the telescope and its

accessories.

Aiming the telescope automatically with the VIRTUOSO GTi mount, connected to your smart

device equipped with WiFi (smartphone, tablet, laptop):

6.9 Wireless Terrestrial Photography Control

The VIRTUOSO GTi mount can be equipped with a camera for terrestrial panorama photography,

timelapse photography etc.

The connection procedure is identical. The app to be installed is different: SynScan Photo.

The Wi-Fi will be turned off automatically to conserve energy if no connection is established

within 15 minutes after being turned on.

By default, the SSID of the built-in Wi-Fi is “SynScan_xxxx” with no password.

Reset Wi-Fi configuration to factory default by turning on the power without the SynScan hand

control connected and no app operations via the Wi-Fi connection for 1 hour.

Entry-level users are recommended to start with SynScan app, the SynScan Pro app is for

experienced users.

Make sure the freely available software (SynScan or SynScan Pro) app is installed on your smart

device. You can find them in your App Store, Google Play or on our webpage

Switch on the VIRTUOSO GTi mount.

Connect your smart device with the WiFi signal with identification “SynScan …..”

Sky-Watcher S21205 Virtuoso GTi 150P GoTo Tabletop Dobsonian Telescope