Celestron C9.25-S, C8-S, C5-S Attaching the Equatorial Mount, Attaching the Center Leg Brace

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Attaching the Equatorial Mount

The equatorial mount allows you to tilt the telescope’s axis of rotation so that you can track the stars as they move across the sky. The CG-5 mount is a German equatorial mount that attaches to the tripod head. On one side of the tripod head there is a metal alignment peg for aligning the mount. This side of the tripod will face north when setting up for an astronomical observing session. To attach the equatorial head:

1.Locate the azimuth adjustment screws on the equatorial mount.

2.Retract the screws so they no longer extend into the azimuth housing on the mount. Do NOT remove the screws since they are needed later for polar alignment.

3.Hold the equatorial mount over the tripod head so that the azimuth housing is above the metal peg.

4.Place the equatorial mount on the tripod head so that the two are flush.

5.Tighten the knob (attached to the central rod) on the underside of the tripod head to hold the equatorial mount firmly in place.

Equatorial

Mount

Azimuth

Alignment Screws

Tripod

HeadAlignment

Peg

Mounting

Knob

Figure 2-3

Attaching the Center Leg Brace

1.Slide the accessory tray over the central rod so that each arm of the tray is pushing against the inside of the tripod legs.

2.Thread the accessory tray knob on to the central rod and tighten.

Installing the Counterweight Bar

To properly balance the telescope, the mount comes with a counterweight bar and at least one counterweight (depending on model). To install the counterweight bar:

1.Locate the opening in the equatorial mount on the DEC axis

2.Thread the counterweight bar into the opening until tight.

3.Tighten the counterweight bar lock nut fully for added support.

Once the bar is securely in place you are ready to attach the counterweight.

Mounting Knob

Central Rod

Accessory Tray

Accessory

Figure 2-3Tray Knob

Figure 2-4

Since the fully assembled telescope can be quite heavy, position the mount so that the polar axis is pointing towards north before the tube assembly and counterweights are attached. This will make the polar alignment procedure much easier.

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Contents Advanced Series Advanced Series GT Introduction Assembly Telescope Maintenance Page Advanced Series Advanced C8-SGT Shown Autoguider PortSetting up the Tripod C9.25-SAttaching the Center Leg Brace Installing the Counterweight BarAttaching the Equatorial Mount Installing the Counterweight Attaching the Hand Control Holder Advanced GT Models OnlyAttaching the Optical Tube to the Mount Attaching the Visual BackInstalling the Star Diagonal Installing the EyepieceInstalling the Finderscope EyepieceRear Cell Removing the Lens CapMoving the Telescope Manually Balancing The Mount in R.A Balancing The Mount in DECAdjusting the Mount in Azimuth Adjusting the MountAdjusting the Mount in Altitude Powering the Telescope Attaching the Declination Cables For GT Models OnlyAdvanced GT Hand Control Hand Control Operation Alignment Procedures Startup ProcedureAuto Align Auto Three-Star AlignRe-Alignment Quick-AlignLast Alignment Object Catalog Selecting an ObjectSlewing to an Object Finding PlanetsTour Mode Constellation TourDirection Buttons Rate ButtonSetup Procedures Identify Precise GoTo Observing Tip Helpful Hint Utility Features Helpful Hint Advanced GT Celestial Coordinate System Motion of the Stars Latitude Scales Pointing at PolarisFinding the North Celestial Pole Declination Drift Method of Polar Alignment Observing the Moon Lunar Observing HintsObserving the Planets Observing the SunSolar Observing Hints Observing Deep Sky ObjectsSeeing Conditions TransparencyPage Short Exposure Prime Focus Photography Eyepiece Projection FullLong Exposure Prime Focus Photography Planet ISO Moon Mercury Venus Mars Jupiter SaturnPage Terrestrial Photography MeteringReducing Vibration CCD ImagingAuto Guiding Care and Cleaning of the Optics CollimationCollimated telescope Should appear Symmetrical with Page Page Page Appendix a Technical Specifications Appendix B Glossary of Terms Page Eclipsing or obscuring the brightness of the star Appendix C Longitudes Latitudes Georgia Minnesota Rhode Island Canada Appendix D RS-232 Connection Communication ProtocolAdditional RS232 Commands Reset The Position Of Azm Or AltAppendix E Maps of Time Zones Page Page Page Page Page Page Page Celestron TWO Year Warranty
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C9.25-S, C5-S, C8-S specifications

Celestron, a leader in the field of amateur and professional astronomy, offers a range of telescopes ideal for both novices and experienced stargazers. Among their most celebrated models are the C8-S, C5-S, and C9.25-S, each designed with unique features and technologies that enhance the observational experience.

The Celestron C8-S is an iconic telescope known for its 8-inch aperture. This Schmidt-Cassegrain design combines a compact form factor with a powerful light-gathering capability, making it perfect for deep-sky observing. Its optical tube has a focal length of 2032mm, providing an excellent balance of wide field viewing and high magnification. The C8-S features Celestron's StarBright XLT optical coating, enhancing light transmission and contrast, ensuring that even faint objects are visible. With compatibility for various accessories and a sturdy mount, the C8-S stands as a versatile option for different observing styles.

Moving to the C5-S, this model boasts a 5-inch aperture while maintains a compact and portable design. It is particularly popular among travelers and casual astronomers who value convenience without compromising on quality. The C5-S also employs the Schmidt-Cassegrain design, providing sharp images and improved color correction. With its shorter focal length of 1250mm, the C5-S excels in both planetary and deep-sky observation. The telescope's lightweight build makes it easy to transport, while the integrated optical systems ensure a clear view of celestial objects.

The C9.25-S represents a step up in performance, featuring a 9.25-inch aperture that captures more light than its smaller counterparts. This telescope offers a versatile focal length of 2350mm, allowing for impressive high-power planetary views, as well as detailed observations of deep-sky objects. The C9.25-S utilizes a unique StarBright XLT coating and features advanced optics that minimize optical distortion, resulting in sharp, high-contrast images. It is equipped with a sturdy mount that ensures stability during extended observation sessions.

All three models are compatible with Celestron's advanced computer-driven mount systems, allowing for effortless tracking and alignment. With built-in features such as GoTo technology, users can easily locate thousands of celestial objects with the touch of a button. This combination of advanced optics, portability, and user-friendly technology makes the Celestron C8-S, C5-S, and C9.25-S excellent choices for anyone looking to explore the cosmos more deeply. Whether for casual stargazing or serious astronomical study, these telescopes deliver exceptional performance to meet a variety of needs.
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