Celestron 80GTL manual LPR Filter #94126A

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Filter, Light Pollution Reduction –LPR (#94126A) - These filters are designed to enhance your views of deep sky astronomical objects when viewed from urban areas. LPR Filters selectively reduce the transmission of certain wavelengths of light, specifically those produced by artificial lights. This includes mercury and high and low pressure sodium vapor lights. In addition, they also block unwanted natural light (sky glow) caused by neutral oxygen emission in our atmosphere.

Filter, Moon (#94119-A)- Celestron’s Moon Filter is an economical eyepiece filter for reducing the brightness of the moon and improving contrast, so greater detail can be observed on the lunar surface. The clear aperture is 21mm and the transmission is about 18%.

Polarizing Filter Set (#93608) - The polarizing filter set limits the transmission of light to a specific plane, thus increasing contrast between various objects. This is used primarily for terrestrial, lunar and planetary observing.

LPR Filter - #94126A

PowerTank (#18774) – 12v 7Amp hour rechargeable power supply. Comes with two 12v output cigarette outlets, built-in red flash light , Halogen emergency spotlight. AC adapter and cigarette lighter adapter included.

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.

T-adapter (#93625) - A T-Adapter allows you to attach your 35mm SLR camera to the prime focus of your telescope. Universal 1¼" T-Adapter. Fits (drop in style) any type of telescope that uses a 1¼" focuser or visual back.

Vibration Suppression Pads (#93503) - These pads rest between the ground and tripod feet of your telescope. They reduce the amplitude and vibration time of your telescope when shaken by the wind or an accidental bump.

A full description of all Celestron accessories can be found in the Celestron Accessory Catalog (#93685) or visit our web site at www.celestron.com

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Contents NexStar 80GTL Table of Contents Telescope Maintenance Page NexStar 80GTL Refractor Telescope NexStar 80 GTL Assembling the NexStarErect Image Diagonal Attaching the Telescope to the TripodBalancing the Telescope tube Star Pointer Finderscope FocusingEyepiece Star Pointer Operation Star Pointer InstallationProtective plastic cover over the battery see figure Installation and Use Using your Solar FilterCleaning and Storage About the FilterPowering the NexStar Outlet Battery PackAttaching the Hand Control HandNexStar GT Hand Control Auto-Align Alignment ProcedureHand Control Operation Two Star Alignment HelpfulHints NexStar Re-Alignment Quick-AlignObject Catalog Tour ModeSelecting an Object Slewing to an ObjectRate Button Set Up ProceduresDirection Buttons EQ North Alt-AzEQ South OffHint Utility FeaturesPage NexStar Ready Correct image as viewed when Using erect image diagonal FocusingGeneral Observing Hints Determining Field of ViewLunar Observing Hints Observing the MoonObserving the Planets Planetary Observing HintsObserving Deep Sky Objects Solar Observing HintsTerrestrial Land Viewing Terrestrial Land Viewing HintsSeeing Sky IlluminationCare and Cleaning of the Optics Page LPR Filter #94126A Opttiicall Speciiffiicattiion Appendix a Technical SpecificationsGlossary of Terms Page Page Communication Protocol Appendix C RS-232 ConnectionAppendix D Maps of Time Zones Page Page Page Page Page Page Page Celestron TWO Year Warranty

80GTL specifications

The Celestron 80GTL is a powerful and compact telescope designed for both amateur astronomers and experienced stargazers. It combines modern technology with user-friendly features, making it an excellent choice for those looking to explore the night sky. With its 80mm aperture, the 80GTL captures enough light to reveal a variety of celestial objects, from the moon’s craters to distant galaxies.

One of the standout characteristics of the Celestron 80GTL is its innovative Altazimuth mount. This mount provides smooth and precise movements in both horizontal and vertical directions, allowing users to easily track celestial objects as they move across the sky. The setup is quick and straightforward, making it ideal for beginners who may be intimidated by more complex mounts.

The telescope is equipped with Celestron’s StarScope system, which includes a computer-controlled GoTo mount. This feature allows users to automatically locate and track over 40,000 celestial objects with the push of a button. The included hand controller is intuitive and easy to navigate, giving users instant access to stars, planets, and deep-sky objects. This technology not only enhances the viewing experience but also helps novice astronomers learn about the universe with guided tours through the night sky.

Another notable feature of the Celestron 80GTL is its sturdy construction and lightweight design. Made from high-quality materials, it boasts durability while remaining portable for easy transport. Weighing just under 10 pounds, this telescope can be taken on camping trips or excursions, allowing users to enjoy astronomy in various locations.

Additionally, users will appreciate the 80GTL’s fully coated glass optics which provide excellent image quality and contrast. The included 25mm and 10mm eyepieces offer different magnifications, catering to diverse viewing preferences. Whether observing the rings of Saturn or the detail of lunar landscapes, the 80GTL promises clear and sharp images.

In summary, the Celestron 80GTL is a highly capable telescope, combining an accessible design with advanced technologies. Its user-friendly GoTo mount, quality optics, and lightweight build make it an exceptional option for anyone wishing to delve into the wonders of the cosmos, ensuring both enjoyment and education in the field of astronomy.