Tip:

When multiple choices are available within a menu option, the current option is usually displayed first and highlighted by a right pointing arrow (>).

3.Press the ENTER key to choose the "Event" option and move down a level. "Event: Sunrise" is displayed.

4.Press the Scroll Down key once to display the "Sunset" option in the Event menu.

5.Press the ENTER key to choose the "Sunset" option and move down another level.

6.AutoStar calculates the Sunset time based on the current date, time and location. AutoStar then displays the results of the calculation.

7.Press MODE once to start moving back up through the AutoStar levels. The first level up is the Event menu.

8.Press MODE again to move up another level. This is the top level, "Select Item."

9.Press MODE again to return to the starting point of "Select Item: Object."

Entering data into AutoStar

JTo enter numbers and text:

a)Use the Number keys, or

b)Use the Arrow keys to scroll through numbers 0 - 9 and the alphabet. The Down Arrow key begins with the letter "A;" the Up Arrow key begins with digit "9."

JTo move the cursor across the display:

Use the Right or Left Arrow key to move the cursor from one number to the next in the display.

JPress ENTER when the desired information has been entered.

Moving Through AutoStar’s Menus

AutoStar's menus are organized for quick and easy navigation:

JPress ENTER to go deeper into AutoStar's menu levels.

JPress MODE to move back toward the top menu level.

JPress the Scroll keys to move up and down through the options or lists.

JPress the Arrow keys to move the cursor across the display.

JPress the Help (?) key to access on-line help.

ETX TIPS

Look into the Future

The Date option in the Setup menu is much more than just an entry of today's date; with it you can look far into the future or learn about past events. AutoStar can calculate the date and times of future events and, except for eclipses, past events as well (based on the current calendar system). E.g., a Sunrise on March 6, 2043 A.D. or the Vernal Equinox in 1776 A.D. To use this feature, enter the desired date in the Setup menu or select an option in the Event menu.

AutoStar, using the Event menu, can calculate dates and times for Sunrises, Sunsets, Moonrises, Moonsets, Moonphases, Solar and Lunar Eclipses (for the next 100 years), meteor showers, equinoxes and solstices and the mini- mums of Algol.

One very practical use of the Event menu is to check the Sunset option to determine when you can begin your astronomical observing session.

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Meade ETX-90PE instruction manual Entering data into AutoStar, Look into the Future
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ETX-90PE specifications

The Meade ETX-90PE is a well-regarded telescope that combines portability and performance, making it a popular choice among both amateur astronomers and seasoned stargazers. Its compact design and advanced features make it an ideal instrument for those who seek to explore the night sky with ease.

At the heart of the ETX-90PE is its Maksutov-Cassegrain optical design, which utilizes a spherical primary mirror and a corrector lens to deliver exceptional image quality. With a focal length of 1250mm and a 90mm aperture, it strikes a balance between light-gathering ability and magnification, allowing users to observe celestial objects such as planets, star clusters, and distant galaxies in remarkable detail. The telescope's focal ratio of f/13.9 provides crisp and sharp views, making it particularly well-suited for planetary observation.

One of the standout features of the ETX-90PE is its Electronic Control System (ECS), which allows for easy and intuitive operation. The telescope is equipped with a built-in AutoStar Computerized GoTo mount, enabling users to locate and track over 30,000 celestial objects with just a few simple commands. With automatic alignment features, even beginners can get started quickly, making the wonders of the universe accessible to everyone.

Portability is a key characteristic of the Meade ETX-90PE. Weighing in at a mere 12.5 pounds, it can be easily transported to dark sky locations. Its compact design not only translates to ease of transport but also means it can be stored conveniently when not in use. The included sturdy aluminum tripod provides stable support, even during extended observation sessions.

The ETX-90PE further enhances the user experience with its high-quality accessories. It comes with a set of eyepieces, including a 26mm Super Plössl and a 9.7mm Plössl, allowing for various magnifications to suit different observing preferences. The telescope also features a built-in flip mirror, allowing for easier viewing through both the eyepiece and a camera, making astrophotography more accessible.

Additionally, the ETX-90PE is designed with user comfort in mind. The telescope offers adjustable slow-motion controls for fine-tuning views and an optical finder scope to help locate objects before zooming in. With robust construction, excellent optics, and a range of advanced features, the Meade ETX-90PE stands out as a versatile, high-quality telescope for both casual observers and serious astronomers alike. Its combination of technology and user-friendly functions makes it an enduring favorite for anyone looking to embark on a journey through the cosmos.
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