Want to learn more about

adding and editing sites? See page 29.

Time Zone

Shift

Atlantic

-4 Hours

Eastern

-5

Hours

Central

-6

Hours

Mountain

-7

Hours

Pacific

-8 Hours

Alaska

-9 Hours

Hawaii

-10

Hours

Table 1: Time Zone Shift. Calculations are for standard time.

Note:

The Download function requires the optional #505 Astrofinder Software and Cable Connector Kit. See the instruction sheet included with the kit for more information on how to download. Also see

OPTIONAL ACCESSORIES,

page 42.

JAdd: Scroll through the list of Countries/States. Press ENTER when the site you wish to add displays. Then choose the desired city in the same manner. Choose Zip Code to enter your zip code, if you wish. Choose “Custom” if you wish enter the name of an observing site. In this method, you will enter its name, plus its longi- tude and latitude. See the margin note on page 29 for more information.

Delete: Deletes a stored site from the database.

JEdit: Edits a selected site, including: the name, latitude, longitude and time zone. Time Zone refers to the Greenwich Mean Time (GMT) time zone shift. Users West of Greenwich, England use “-” hours, East of Greenwich use “+” hours. For the United States, look up the time zone shift in table above.

NOTE: AutoStar compensates for daylight savings time, if selected. See

“Setup Menu: Daylight Saving,” page 26.

Owner Info accesses the owner information menu, including:

JName: Users may enter both their first and last names using the Up and Down Arrow keys to cycle through the alphabet. Use the Right and Left Arrow keys to move through the text. Press ENTER when the entry is complete.

JAddress: Use the Up and Down Arrow keys to enter your street address, city, state and zip code. Press ENTER when the entry is complete.

Download transfers information from another AutoStar. During the operation, the warning “Downloading Do Not Turn Off” appears.

Clone uploads information from one AutoStar handbox to another. Three options are available:

JCatalogs: Sends only user-defined object information, such as new satellite orbits or comet data to another AutoStar handbox.

JSoftware: Sends only the basic AutoStar software. This is useful if one user has downloaded a new version of AutoStar software from the Meade website (www.meade.com) and wants to pass this software along to friends.

JAll: Everything – user-defined information and AutoStar software – is sent to another AutoStar.

Statistics provides basic statistical data about AutoStar, including:

JCharacters Free: Shows how much room is available in user-defined object memory.

JVersion: Shows the current version of the AutoStar software.

Reset completely resets AutoStar. Most values entered into the menus revert to factory defaults. AutoStar requires initialization again after a Reset before proceeding

with observations. See INITIALIZING AUTOSTAR, page 17.

ETX TIPS

Join an Astronomy Club, Attend a Star Party

One of the best ways to increase your knowledge of astronomy is to join an astronomy club. Check your local newspaper, school, library or telescope dealer/store to find out if there’s a club in your area.

At club meetings, you will meet other astronomy enthusiasts with whom you will be able to share your discoveries. Clubs are an excellent way to learn more about observing the sky, to find out where the best observing sites are and to compare notes about telescopes, eyepieces, filters, tripods and so forth.

Often, club members are excellent astrophotographers. Not only will you be able to see examples of their art, but you may even be able to pick up some “tricks of the trade” to try out with your ETX telescope. See page 40 for more information about photography with the ETX.

Many groups also hold regularly scheduled Star Parties at which you can check out and observe with many different telescopes and other pieces of astronomical equipment. Magazines such as Sky & Telescope and Astronomy print schedules for many popular Star Parties around the United States and Canada.

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Image 28
Meade ETX-90PE instruction manual Adding and editing sites? See, Shift

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.