Tip:

The Reverse L/R and U/D functions are useful if you are observing in the Southern hemisphere.

Do you want to learn how to perform the periodic error correction proce- dure? See SMART MOUNT, page 56.

Tip:

If the "ENTER to Sync" feature is accessed by mistake (holding the ENTER key for more than 2 seconds), press MODE to return to the previous screen.

Want to learn more about adding and editing sites? See page 32.

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.

a.Sidereal: The default tracking setting for Autostar; sidereal rate is the stan- dard rate at which stars move from East to West across the sky due to the rotation of the Earth.

b.Lunar: Choose this option to properly track the Moon over long observing sessions.

c.Custom: Allows entry of user-defined tracking rates.

Reverse L/R: Reverses the functions of the Left and Right Arrow keys (i.e., the Right key moves the telescope to the left).

Reverse U/D: Reverses the functions of the Up and Down Arrow keys (i.e., the Up key moves the telescope down).

Quiet Slew: Sets the maximum slew rate to 1.5° for quieter operation.

Max Elevation: Allows you to enter a value in degrees that sets a limit as to how far the optical tube can swing upward during a programmed slew. (Note that it does not prevent you from performing a manual slew past this limit.) This is use- ful when you have a camera or other peripheral attached to the telescope—you can prevent it from striking the telescope base.

Min AOS (Acquisition of Signal): Allows you enter a value in degrees. This value represents the altitude at which your telescope begins to slew when acquiring a satellite track. This is useful when you are observing satellites, but a tall tree or building is obstructing the telescope. For example, you might begin to track the satellite at 15° altitude, instead of 5°. See OBSERVING SATELLITES, page 34, for more information about satellites.

Calibrate Motor: If the telescope motors appear to have a problem, use this option to retest the motors before performing a Reset. This option is also used if an Autostar unit is moved between telescopes, to match Autostar to the new tel- escope. To calibrate the motors, select this option and press ENTER.

Smart Mount: Allows you to perform periodic error correction (PEC) on the R.A. drive worm gear. Must be performed with a high-power reticle (eg., 9mm).

High Precision: If High Precision is turned on, when looking for a faint celestial object (i.e., a nebula or galaxy), Autostar first slews to a nearby bright star and displays "ENTER to Sync." Center the star in the eyepiece, then press ENTER. At that point the telescope has a high precision alignment to that part of the sky and it then slews to the object that was originally requested.

Targets switches between Astronomical targets and Terrestrial targets. If "Astronomical" is selected, the telescope tracking motor is activated and any object you observe will remain centered in the eyepiece. If "Terrestrial" is selected, the track- ing motor is turned off. To learn how to track an object automatically, see page 18.

Site provides access to several options including:

Select: Displays the currently selected observing site. Use the Scroll keys to cycle through all available sites (see ADD below). Press ENTER when the site you wish to select displays. Use this option when you move to a different geo- graphic location.

Add: Allows you to add new observing sites to the database (up to six sites may be stored). 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.

Delete: Deletes a stored site from the database.

Edit: 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 1.

Note: Autostar compensates for daylight savings time, if selected. See

SETUP MENU: DAYLIGHT SAVING, page 29.

Owner Info accesses the owner information menu, including:

Name: 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.

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Meade LXD 75-Series instruction manual Setup Menu Daylight SAVING

LXD 75-Series specifications

The Meade LXD 75-Series telescopes represent a significant advancement in amateur astronomy technology, combining ease of use with professional-grade features. Designed for both novice and experienced astronomers, the LXD 75-Series offers sophisticated tracking capabilities and a range of optical tube assemblies, making it a versatile choice for stargazers.

One of the most notable features of the LXD 75-Series is its advanced German equatorial mount, which provides precise tracking of celestial objects. This mount is equipped with digital setting circles and a built-in autoguider port, allowing users to take long-exposure astrophotography without the hassle of manual adjustments. The telescope's mount is designed to be sturdy yet lightweight, enhancing portability for backyard observations or remote excursions.

The optical tube assemblies available in the LXD 75-Series include both refractor and reflector designs, allowing astronomers to choose according to their preferences. Refractors provide crisp, high-contrast images ideal for planetary observations, while reflectors excel in deep-sky viewing, revealing the nuances of nebulae and galaxy structures. The series typically offers apertures ranging from 6 to 10 inches, giving users the flexibility to select a model that best suits their observational needs.

Another feature that stands out in the LXD 75-Series is its user-friendly GoTo system. This system utilizes a database containing thousands of celestial objects and employs sophisticated software to navigate the night sky effortlessly. With a simple push of a button, users can locate and track objects, making the stargazing experience more engaging and less intimidating for beginners.

The LXD 75-Series also emphasizes durability and ease of assembly. The telescopes are designed for quick setup, with intuitive components that make it easy to get started in minutes. Additionally, the quality of craftsmanship ensures longevity, which is vital for a reliable observational tool.

In conclusion, the Meade LXD 75-Series stands out for its combination of advanced technologies and user-centric designs. With powerful tracking capabilities, versatile optical options, and an easy-to-use GoTo system, these telescopes cater to the diverse needs of astronomical enthusiasts. Whether for casual observation or serious astrophotography, the LXD 75-Series proves to be a stellar option for those looking to explore the wonders of the universe.