Introduction

Congratulations on your purchase and welcome to the Celestron world of amateur astronomy. Some of the terms and parts described in these instructions may be new to you, so a few commonly used terms you’ll want to be familiar with are defined below.

Altazimuth mount - the simplest type of mount, with two motions: altitude (up and down) and azimuth (side-to- side). “Mount” refers to the part of the telescope that support the tube, which carries all the telescope’s optics. Altitude lock - allows the telescope tube to be locked into place once a focused image has been set up, by tightening the two screws on the outside of the altazimuth mount.

Focal length - the distance from the optical center of the lens to the point where the incoming light rays converge, creating a clear, focused image.

Objective lens - the front lens of the telescope. It gathers incoming light to create a sharply focused image. Refracting telescope - a long, thin tube where light passes in a straight line from the front objective lens directly to the eyepiece at the opposite end of the tube.

First, you need to take the time to familiarize yourself with the parts of your Firstscope telescope, then assemble it, following the easy instructions provided. Next, read over the operating instructions and become familiar with how your telescope works, to prepare for hours of viewing enjoyment.

CAUTION: READ THIS SECTION BEFORE USING YOUR TELESCOPE

Your Firstscope telescope is designed to give you hours of fun and rewarding observing. However, there are a few things to be aware of before using your telescope that will ensure your safety and protect your equipment.

NEVER LOOK DIRECTLY AT THE SUN WITH THE NAKED EYE OR WITH A TELESCOPE. NEVER POINT YOUR TELESCOPE AT THE SUN UNLESS YOU’RE USING 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, OR USE AN EYEPIECE SOLAR FILTER OR A HERSCHEL WEDGE. INTERNAL HEAT BUILD-UP CAN DAMAGE THE TELESCOPE AND/OR ANY ACCESSORIES THAT MAY BE ATTACHED TO IT.

NEVER LEAVE YOUR TELESCOPE UNSUPERVISED, ESPECIALLY WHEN CHILDREN ARE PRESENT. THIS ALSO HOLDS TRUE FOR ADULTS WHO MAY NOT BE FAMILIAR WITH THE CORRECT OPERATING PROCEDURES FOR YOUR TELESCOPE.

ALWAYS COVER THE FINDERSCOPE WHEN USING YOUR TELESCOPE WITH THE CORRECT SOLAR FILTER. ALTHOUGH SMALL IN APERTURE, THIS INSTRUMENT HAS ENOUGH LIGHT GATHERING POWER TO CAUSE PERMANENT AND IRREVERSIBLE EYE DAMAGE. THE IMAGE PROJECTED BY THE FINDERSCOPE IS HOT ENOUGH TO BURN SKIN OR CLOTHING.

21052, Refractor, 70 AZ, 60 AZ, 21071 specifications

The Celestron 21052 and 21071 are standout models in the brand's renowned refractor telescope range, ideal for both novice astronomers and seasoned stargazers. The 70 AZ and 60 AZ options provide exceptional portability while still delivering impressive optical performance.

The Celestron 21052, featuring a 70mm aperture, is designed to capture bright and clear images of celestial objects. Its refractor design utilizes high-quality glass optics that reduce chromatic aberration, ensuring that colors are rendered accurately and clearly. With a focal length of 700mm, it offers a suitable balance of magnification and field of view, making it perfect for observing planets, star clusters, and even some of the brighter deep-sky objects.

The portable design of the 70 AZ model makes it easy to transport to various viewing locations. It comes with a sturdy, adjustable tripod that provides excellent stability during observations. Additionally, a smooth altazimuth mount allows for easyTracking of celestial objects as they move across the night sky. The telescope also includes a finder scope, which aids in locating objects quickly, enhancing the overall viewing experience.

The Celestron 21071, featuring a slightly smaller 60mm aperture, is a fantastic choice for beginners looking to get into astronomy without a hefty investment. Despite its compact size, the 60 AZ still offers great optical quality, making it possible to view the Moon's craters, Jupiter’s moons, and more with remarkable clarity. The 60 AZ is designed for quick setup and portability, making it ideal for impromptu stargazing sessions.

Both models come with a variety of accessories that enhance usability, including multiple eyepieces for different magnification levels and a star map to help users locate celestial objects. The telescopes are also compatible with a smartphone adapter, allowing users to capture images of their observations and share them with friends or social media.

Ultimately, the Celestron 21052 and 21071 refractor telescopes exemplify quality design and ease of use, making them excellent choices for anyone interested in exploring the night sky. With their user-friendly features and excellent optics, these telescopes provide a window to the wonders of the universe, encouraging a lifelong passion for astronomy.