Introduction - Celestron ASTROMASTER 90AZ Instruction Manual

INTRODUCTION

Congratulations on your purchase of an AstroMaster Series telescope . The AstroMaster Series is made of the highest
quality materials to ensure stability and durability . All this adds up to a telescope that gives you a lifetime of pleasure with a
minimal amount of maintenance .
These telescopes were designed for the first time buyer offering exceptional value . The AstroMaster series features a
compact and portable design with ample optical performance to excite any newcomer to the world of amateur astronomy .
In addition, your AstroMaster telescope is ideal for terrestrial observations which will open your eyes with superb high
power viewing .
AstroMaster telescopes carry a two year limited warranty . For details see our website at www .celestron .com
Some of the many standard features of the AstroMaster include:
• All coated glass optical elements for clear, crisp images .
• Smooth functioning, rigid alt-azimuth mount with a large pan handle with built-in clutch for easy targeting .
• Preassembled steel leg tripod with 1 .25" legs ensures stable platform .
• Quick and easy no-tool set up .
• Free downloadable Astronomy software for PC and MAC .
• All models can be used terrestrially as well as astronomically with the standard accessories included .
Take time to read through this manual before embarking on your journey through the Universe . It may take a few observing
sessions to become familiar with your telescope, so you should keep this manual handy until you have fully mastered your
telescope's operation . The manual gives detailed information regarding each step as well as needed reference material and
helpful hints guaranteed to make your observing experience as simple and pleasurable as possible .
Your telescope is designed to give you years of fun and rewarding observations . However, there are a few things to consider
before using your telescope that will ensure your safety and protect your equipment .
WARNING
• Never look directly at the sun with the naked eye or with a telescope (unless you have the proper solar filter) .
Permanent and irreversible eye damage may result .
• Never use your telescope to project an image of the sun onto any surface . Internal heat build-up can damage the
telescope and any accessories attached to it .
• Never use an eyepiece solar filter or a Herschel wedge . Internal heat build-up inside the telescope can cause these devices
to crack or break, allowing unfiltered sunlight to pass through to the eye .
• Do not leave the telescope unsupervised, either when children are present or adults who may not be familiar with the
correct operating procedures of your telescope .
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