Celestron 93507 manual General Observing Hints

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thousand yards. The apparent field of each eyepiece that Celestron manufactures is found in the Celestron Accessory Catalog (#93685).

General Observing Hints

When working with any optical instrument, there are a few things to remember to ensure you get the best possible image.

•Never look through window glass. Glass found in household windows is optically imperfect, and as a result, may vary in thickness from one part of a window to the next. This inconsistency can and will affect the ability to focus your telescope. In most cases you will not be able to achieve a truly sharp image, while in some cases, you may actually see a double image.

•Never look across or over objects that are producing heat waves. This includes asphalt parking lots on hot summer days or building rooftops.

•Hazy skies, fog, and mist can also make it difficult to focus when viewing terrestrially. The amount of detail seen under these conditions is greatly reduced. Also, when photographing under these conditions, the processed film may come out a little grainier than normal with lower contrast and underexposed.

•If you wear corrective lenses (specifically glasses), you may want to remove them when observing with an eyepiece attached to the telescope. When using a camera, however, you should always wear corrective lenses to ensure the sharpest possible focus. If you have astigmatism, corrective lenses must be worn at all times.

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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 Control Panel Auxiliary PortSetting Up The Tripod Assembling the NexStarAdjusting the Tripod Height Attaching the NexStar to the TripodAttaching the Hand Control 3a Attaching the Hand Control for NexStar 8 GPSAdjusting the Clutches Star DiagonalEyepiece Finderscope Installation FinderscopePowering the NexStar Aligning the FinderscopeNexStar Hand Control Alignment Procedures Hand Control OperationFew Words on GPS GPS AlignmentAuto-Align HelpfulHint Two Star Alignment Quick-AlignHelpful Hint EQ North / EQ South Alignment NexStar Re-AlignmentSelecting an Object Object CatalogFinding Planets Slewing to an ObjectTour Mode Direction ButtonsRate Button EQ North Setup ProceduresAlt-Az EQ SouthScope Setup Features Utility Features MenuHelpful Hint NexStar GPS Menu Alignment ListImage Orientation Focusing Calculating MagnificationDetermining Field of View General Observing Hints Celestial Coordinate System Celestial sphere seen from the outside showing R.A. and DECMotion of the Stars Polar Alignment with optional Wedge Finding the North Celestial PoleWedge Align Declination Drift Method of Polar Alignment DefinitionPage Lunar Observing Hints Observing the MoonObserving the Planets Planetary Observing HintsSeeing Conditions Observing the SunObserving Deep Sky Objects TransparencySeeing Short Exposure Prime Focus Photography Lunar Phase ISO Crescent Quarter Eyepiece ProjectionFull Long Exposure Prime Focus Photography Planet ISO Moon Mercury Venus Mars Jupiter SaturnPeriodic Error Correction PEC Using Periodic Error CorrectionTerrestrial Photography CCD Imaging MeteringReducing Vibration Fastar Compatible Optical System Fastar F/2 Imaging With Reducer/CorrectorPin out diagram for Autoguider port Auto GuidingCare and Cleaning of the Optics CollimationCollimated telescope Should appear Super Modified Achromatic SMA Eyepieces 1 ¼ Page Page Mechanical Specifications Optical Specification NexStar 8 GPS NexStar 11 GPSElectronic Specifications Software SpecificationsAppendix B Glossary of Terms Page Page Appendix C Longitudes Latitudes Georgia Minnesota Rhode Island Canada Description PC Command Ascii Hand Control Response Communication ProtocolSend a Slow-Goto Command Through RS232 To The Hand Control Reset The Position Of Azm Or AltSend 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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