Celestron 93507 manual Utility Features, Menu

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Filter Limits – When an alignment is complete, the NexStar automatically knows which celestial objects are above the horizon. As a result, when scrolling through the database lists (or selecting the Tour function), the NexStar hand control will display only those objects that are known to be above the horizon when you are observing. You can customize the object database by selecting altitude limits that are appropriate for your location and situation. For example, if you are observing from a mountainous location where the horizon is partially obscured, you can set your minimum altitude limit to read +20º. This will make sure that the hand control only displays objects that are higher in altitude than 20º. If you manually enter an object that is below the horizon using the numeric keypad, the hand control will display a warning message before slewing to the object.

If you want to explore the entire object database, set the maximum altitude limit to 90º

Observing and the minimum limit to –90º. This will display every object in the database lists

Tip! regardless of whether it is visible in the sky from your location.

Direction Buttons –The direction a star moves in the eyepiece varies depending on the accessories being used. This can create confusion when guiding on a star using an off-axis guider versus a straight through guide scope. To compensate for this, the direction of the drive control keys can be changed. To reverse the button logic of the hand control, press the MENU button and select Direction Buttons from the Utilities menu. Use the Up/Down arrow keys (10) to select either the azimuth (left and right) or altitude (up and down) button direction and press ENTER. Pressing ENTER again will reverse the direction of the hand control buttons from their current state. Direction Buttons will only change the eyepiece rates (rate 1-6) and will not affect the slew rates (rate 7-9).

Goto Approach - lets the user define the direction that the telescope will approach when slewing to an object. This allows the user the ability to minimize the effects of backlash For example, if your telescope is back heavy from using heavy optical or photographic accessories attached to the back, you would want to set your altitude approach to the negative direction. This would ensure that the telescope always approaches an object from the opposite direction as the load pulling on the scope. Similarly, if using the NexStar polar aligned on a wedge, you would want to set the azimuth approach to the direction that allows the scope to compensate for different load level on the motors and gears when pointing in different parts of the sky.

To change the goto approach direction, simply choose Goto Approach from the Scope Setup menu, select either Altitude or Azimuth approach, choose positive or negative and press Enter.

Autoguide Rate – Allows the user to set an autoguide rate as a percentage of sidereal rate. This is helpful when calibrating your telescope to a CCD autoguider for long exposure photography.

Cordwrap - – Cord wrap safeguards against the telescope slewing more than 360º in azimuth and wrapping accessory cables around the base of the telescope. This is useful when autoguiding or any time that cables are plugged into the base of the telescope. By default, the cord wrap feature is turned off when the telescope is aligned in altazimuth and turn on when aligned on a wedge.

Utility Features

Scrolling through the MENU (9) options will also provide access to several advanced utility functions within the NexStar such as; Compass Calibration, Periodic Error Correction, Hibernate as well as many others.

MENU

SCOPE SETUP

SETUP TIME-SITE

ANTI-BACKLASH

AZM POSITIVE

AZM NEGATIVE

ALT POSITIVE

ALT NEGATIVE

SLEW LIMITS

SLEW ALT MAX

SLEW ALT MIN

FILTER LIMITS

ALTMAX IN LIST

ALTMIN IN LIST

DIRECTION BUTTONS

GOTO APPROACH

AZM APPROACH

ALT APPROACH

AUTOGUIDE RATES

AZM RATE

ALT RATE

CORDWRAP

UTILITIES

GPS ON/OFF

COMPASS

FIND CELESTIAL NORTH

CALIBRATE COMPASS

ALT SENSOR

MOVE ALT SENSOR

CALIBRATE SENSOR

WEDGE ALIGN

PEC

PLAYBACK

RECORD

LIGHT CONTROL

FACTORY SETTING

PRESS UNDO

PRESS "0"

VERSION

GET ALT-AZ

GOTO ATL-AZ

HIBERNATE

GPS On/Off - Allows you to turn off the GPS module. When aligning the telescope using AutoAlign, the NexStar still receives information, such as current time, from the GPS. If you want to use the NexStar database to find the coordinates of a celestial object for a future date you would need to turn the GPS module off in order to manually enter a date and time other than the present.

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Contents Page Introduction Quick Setup Assembly Telescope Maintenance Appendix E Time Zone MAP SKY Maps Observational Data Sheet Page Center Leg Brace Tension KnobLeg Finderscope Alignment Star Auxiliary Port Control PanelAssembling the NexStar Setting Up The TripodAttaching the NexStar to the Tripod Adjusting the Tripod Height3a Attaching the Hand Control for NexStar 8 GPS Attaching the Hand ControlStar Diagonal Adjusting the ClutchesEyepiece Finderscope Finderscope InstallationAligning the Finderscope Powering the NexStarNexStar Hand Control Hand Control Operation Alignment ProceduresGPS Alignment Few Words on GPSHelpful Auto-AlignHint Quick-Align Two Star AlignmentHelpful Hint NexStar Re-Alignment EQ North / EQ South AlignmentFinding Planets Object CatalogSelecting an Object Slewing to an ObjectDirection Buttons Tour ModeRate Button Alt-Az Setup ProceduresEQ North EQ SouthScope Setup Features Menu Utility FeaturesHelpful Hint Menu Alignment List NexStar GPSImage Orientation Calculating Magnification FocusingDetermining Field of View General Observing Hints Celestial sphere seen from the outside showing R.A. and DEC Celestial Coordinate SystemMotion of the Stars Finding the North Celestial Pole Polar Alignment with optional WedgeWedge Align Definition Declination Drift Method of Polar AlignmentPage Observing the Planets Observing the MoonLunar Observing Hints Planetary Observing HintsObserving Deep Sky Objects Observing the SunSeeing Conditions TransparencySeeing Short Exposure Prime Focus Photography Eyepiece Projection Lunar Phase ISO Crescent QuarterFull Planet ISO Moon Mercury Venus Mars Jupiter Saturn Long Exposure Prime Focus PhotographyUsing Periodic Error Correction Periodic Error Correction PECTerrestrial Photography Metering CCD ImagingReducing Vibration Fastar Compatible Optical System With Reducer/Corrector Fastar F/2 ImagingAuto Guiding Pin out diagram for Autoguider portCollimation Care and Cleaning of the OpticsCollimated telescope Should appear Super Modified Achromatic SMA Eyepieces 1 ¼ Page Page Electronic Specifications Optical Specification NexStar 8 GPS NexStar 11 GPSMechanical Specifications Software SpecificationsAppendix B Glossary of Terms Page Page Appendix C Longitudes Latitudes Georgia Minnesota Rhode Island Canada Communication Protocol Description PC Command Ascii Hand Control ResponseReset The Position Of Azm Or Alt Send a Slow-Goto Command Through RS232 To The Hand ControlSend Any Track Rate Through RS232 To The Hand Control Appendix E Maps of Time Zones Page Page Page Page Page Page Page Observational Data Sheet Celestron TWO Year Warranty

93507 specifications

The Celestron 93507 is a powerful and versatile telescope designed for both amateur and seasoned astronomers. This model combines advanced technologies and practical features to deliver an enriching stargazing experience. One of the standout characteristics of the Celestron 93507 is its robust optical design. It features a 90mm aperture, allowing users to capture bright, detailed views of celestial objects, from the lunar surface to distant galaxies. The telescope employs a Maksutov-Cassegrain optical design, known for its compact form factor and high-quality images, free from chromatic aberration.

In terms of usability, the Celestron 93507 is designed with an easy setup in mind. It comes equipped with a solid mount that provides stability during observation. The mount also includes slow-motion controls, facilitating smooth panning across the night sky, allowing astronomers to track celestial objects effortlessly. This feature is particularly beneficial for viewing planets and other fast-moving astronomical phenomena.

Furthermore, the telescope comes with high-grade optics, including fully coated glass elements that enhance light transmission and ensure sharper images with higher contrast. It includes two eyepieces — a low-power 25mm and a high-power 10mm — that provide versatility in viewing options, whether you’re looking at wide expanses of the night sky or zooming in on close details of lunar craters.

Additionally, the Celestron 93507 is compatible with various Celestron accessories, including solar filters and advanced eyepieces, enabling users to expand their observational capabilities. The telescope's compact design makes it portable, perfect for amateur astronomers who enjoy taking their telescope for trips to dark-sky locations.

Another noteworthy feature of this telescope is its durability. Built to withstand the rigors of outdoor usage, the materials used in the Celestron 93507 are resistant to wear and tear, ensuring that users can enjoy stargazing for years.

Overall, the Celestron 93507 is a well-rounded instrument that combines advanced optical technology, user-friendly features, and portability, making it an excellent choice for anyone looking to explore the wonders of the universe. Whether you're interested in planetary observation, lunar details, or deep-sky wonders, this telescope offers the tools necessary to make your astronomical explorations rewarding.
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