Celestron 93507 manual

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Radial Guider (#94176) - The Celestron Radial Guider® is specifically designed for use in prime focus, deep sky astrophotography and takes the place of the T-Adapter. This device allows you to photograph and guide simultaneously through the optical tube assembly of your telescope. This type of guiding produces the best results since what you see through the guiding eyepiece is exactly reproduced on the processed film. The Radial Guider is a “T”-shaped assembly that attaches to the rear cell of the telescope. As light from the telescope enters the guider, most passes straight through to the camera. A small portion, however, is diverted by a prism at an adjustable angle up to the guiding eyepiece. This guider has two features not found on other off-axis guiders; first, the prism and eyepiece housing rotate independently of the camera orientation making the acquisition of

a guide star quite easy. Second, the prism angle is tunable allowing you to look at guide stars on-axis. This accessory works especially well with the Reducer/Corrector.

Reducer/Corrector (#94175) - This lens reduces the focal length of the telescope by 37%, making your NexStar 11 a 1764mm f/6.3 instrument and the NexStar 8 a 1280mm f/6.3 instrument. In addition, this unique lens also corrects inherent aberrations to produce crisp images all the way across the field when used visually. When used photographically, there is some vignetting that produces a 26mm circular image on the processed film. It also increases the field of view significantly and is ideal for wide-field, deep-space viewing. It is also perfect for beginning prime focus, long-exposure astro photography when used with the radial guider. It makes guiding easier and exposures much shorter.

RS-232 Cable (#93920) – Allows your NexStar telescope to be controlled using a laptop computer or PC. Once connected, the NexStar can be controlled using popular astronomy software programs.

Sky Maps (#93722) - Celestron Sky Maps are the ideal teaching guide for learning the night sky. You wouldn’t set off on a road trip without a road map, and you don’t need to try to navigate the night sky without a map either. Even if you already know your way around the major constellations, these maps can help you locate all kinds of fascinating objects.

Skylight Filter (#93621) - The Skylight Filter is used on the Celestron NexStar telescope as a dust seal. The filter threads onto the rear cell of your telescope. All other accessories, both visual and photographic (with the exception of Barlow lenses), thread onto the skylight filter. The light loss caused by this filter is minimal.

Solar Filter - The AstroSolar® filter is a safe and durable filter that covers the front opening of the telescope. View sunspots and other solar features using this double-sided metal coated filter for uniform density and good color balance across the entire field. The Sun offers constant changes and will keep your observing interesting and fun. Celestron offers filters for NexStar GPS 8 (#94162).

T-Adapter(#93633-A) - T-Adapter (with additional T-Ring) allows you to attach your SLR camera to the rear cell of your Celestron NexStar. This turns your NexStar into a high power telephoto lens perfect for terrestrial photography and short exposure lunar and filtered solar photography.

T-Ring - The T-Ring couples your 35mm SLR camera body to the T-Adapter, radial guider, or tele-extender. This accessory is mandatory if you want to do photography through the telescope. Each camera make (i.e., Minolta, Nikon, Pentax, etc.) has its own unique mount and therefore, its own T-Ring. Celestron has 8 different models for 35mm cameras.

Tele-Extender, Deluxe (#93643) - The tele-extender is a hollow tube that allows you to attach a camera to the telescope when the eyepiece is installed. This accessory is used for eyepiece projection photography which allows you to capture very high power views of the Sun, Moon, and planets on film. The tele-extender fits over the eyepiece onto the visual back. This tele-extender works with eyepieces that have large housings, like the Celestron Ultima series.

Wedge, Heavy Duty (#93655) – The wedge allows you to tilt the telescope so that its polar axis is parallel to the earth's axis of rotation. Ideal for using your NexStar for guided astrophotography.

A full description of all Celestron accessories can be found in the Celestron Accessory Catalog (#93685).

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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 GPSStar Diagonal Adjusting the ClutchesEyepiece Finderscope Installation FinderscopePowering the NexStar Aligning the FinderscopeNexStar Hand Control Alignment Procedures Hand Control OperationFew Words on GPS GPS AlignmentHelpful Auto-AlignHint Quick-Align Two Star AlignmentHelpful Hint EQ North / EQ South Alignment NexStar Re-AlignmentObject Catalog Finding PlanetsSelecting an Object Slewing to an ObjectDirection Buttons Tour ModeRate Button Setup Procedures Alt-AzEQ North EQ SouthScope Setup Features Utility Features MenuHelpful Hint NexStar GPS Menu Alignment ListImage Orientation Calculating Magnification FocusingDetermining Field of View General Observing Hints Celestial Coordinate System Celestial sphere seen from the outside showing R.A. and DECMotion of the Stars Finding the North Celestial Pole Polar Alignment with optional WedgeWedge Align Declination Drift Method of Polar Alignment DefinitionPage Observing the Moon Observing the PlanetsLunar Observing Hints Planetary Observing HintsObserving the Sun Observing Deep Sky ObjectsSeeing Conditions TransparencySeeing Short Exposure Prime Focus Photography Eyepiece Projection Lunar Phase ISO Crescent QuarterFull Long Exposure Prime Focus Photography Planet ISO Moon Mercury Venus Mars Jupiter SaturnPeriodic Error Correction PEC Using Periodic Error CorrectionTerrestrial Photography Metering CCD ImagingReducing 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 Optical Specification NexStar 8 GPS NexStar 11 GPS Electronic SpecificationsMechanical 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 ProtocolReset 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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