User manual MEADE ETX-80AT

[. . . ] Instruction Manual ETX-80AT-TC MEADE. COM CONTENTS WARNING! Never use a Meade® Telescope to look at the Sun!Looking at or near the Sun will cause instant and irreversible damage to your eye. Eye damage is often painless, so there is no warning to the observer that damage has occurred until it is too late. Children should always have adult supervision while observing. Quick-Start Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] Sleep Scope is a power saving option that shuts down Autostar and the telescope without forgetting its alignment. With "Sleep Scope" selected, press ENTER to activate the Sleep function. Press any key, except ENTER, to reactivate Autostar and the telescope. Park Scope is designed for a telescope that is not moved between observing sessions. Align the telescope one time, then use this function to park the telescope. Next time it is powered up, enter the correct date and time ­ no alignment is required. Pressing ENTER causes the telescope to move to its pre-determined Park position. IMPORTANT NOTE: When the "Park Scope" option is chosen and the display prompts you to turn off the telescope's power, Autostar is unable to be returned to operation without turning the power off and then back on. Cord Wrap, when set to "On, " moves the telescope in such a way as to prevent the cords and cables attached to your telescope assembly from getting wound around the assembly and tangled as the telescope slews to objects. "Off" is the default setting. Setup Menu The Setup menu's primary function is to align the telescope (see EASY ALIGN, page 18). However, there are numerous other features available within the Setup menu, including: 25 Date changes the date used by Autostar. Then check the "Select Item: Event" menu for the Sunset time on that date. Setting the correct time is critical for Autostar to properly calculate locations and events. Time may be set to 24-hour mode (military time) by selecting the "blank" option which follows the "AM" and "PM" options. NOTE: Daylight Savings Time may be referred to by different names in various areas of the world. Telescope accesses the several options, including: { Model: Allows you to select the telescope model connected to Autostar. { { { Focal Length: Displays the focal length of the selected telescope. Az Ratio and Alt Ratio: The Az (Azimuth) ratio and Alt (Altitude) ratio refers to the gears of the telescope's motors. Az Percent: The Az (Azimuth) Percent allows you to change the azimuth backlash, i. e. , the way the Arrow keys move the telescope along the azimuth (horizontal) axis. If you enter a value near 100, the telescope tube responds more quickly (it responds immediately at 100%) as you hold down an Arrow key and also slews (moves) the tube more quickly. If you enter a value near 0, it takes longer for the tube to respond as you hold down an Arrow key and also slews the tube more slowly. Try changing the percent value until you get a "feel" for the Arrow keys that is comfortable for you. Alt Percent: The Alt (Altitude) Percent operates identical to the AZ Percent option (see above), but allows you to change the altitude backlash, i. e. , the way the Arrow keys move the telescope when moving along the altitude (vertical) axis. [. . . ] Titan, the largest of Saturn's 18 moons can also be seen as a bright, star-like object near the planet. Deep-Sky Objects Star charts can be used to locate constellations, individual stars and deep-sky objects. Examples of various deep-sky objects are given below: Stars are large gaseous objects that are self-illuminated by nuclear fusion in their core. Because of their vast distances from our solar system, all stars appear as pinpoints of light, irrespective of the size of the telescope used. Fig. [. . . ]