User manual MEADE TELESTAR RB-70

[. . . ] www. meade. com TELESTAR INSTRUCTION MANUAL 70mm | 2. 75" Altazimuth Refracting Telescope RB-70 INTRODUCTION Your telescope is an excellent beginner's instrument, and is designed to observe objects in the sky and also on land. It can be your personal window on the universe or allows you to intimately study the behavior of nesting birds on a distant hillside. The telescope is shipped with the following parts: · Optical tube · Aluminum tripod with an accessory tray · Two 1. 25" eyepieces: MA25mm (28X), MH9mm (78X) · 2x 1. 25" Barlow lens · Diagonal mirror · Red dot viewfinder with bracket · Telescope mount The tube has a focal length of 700mm, and its objective lens has a diameter of 70mm. The lens diameter is one of the most important pieces of information about the telescope. [. . . ] If you've never watched the Galilean moons in your telescope before, you're missing a real treat!See if you can find blue, orange, yellow, white and red stars. The color of stars sometimes can tell you about the age of a star and the temperature that they burn at. Other stars to look for are multiple stars. Very often, you can find double (or binary) stars, stars that are very close together. Almost all the stars you can see in the sky are part of our galaxy. A galaxy is a large grouping of stars, containing millions or even billions of stars. Some galaxies form a spiral (like our galaxy, the Milky Way) and other galaxies look more like a large football and are called elliptical galaxies. There are many galaxies that are irregularly shaped and are thought to have been pulled apart because they passed too close to--or even through--a larger galaxy. You may be able to see the Andromeda galaxy and several others in your telescope. They will appear as small, fuzzy clouds. Only very large telescope will reveal spiral or elliptical details. You will also be able to see some nebulas with your scope. The two easiest to see in the Northern Hemisphere are the Orion nebula during the winter and the Triffid nebula during the summer. These are large clouds of gas in which new stars are being born. Some nebulas are the remains of stars exploding. When you become an advanced observer you can look for other types of objects such as asteroids, planetary nebula and globular clusters. And if you're lucky, every so often a bright comet appears in the sky, presenting an unforgettable sight. The more you learn about objects in the sky, the more you will learn to appreciate the sights you see in your telescope. Start a notebook and write down the observations you make each night. Use a compass to make a circle, or trace around the lid of a jar. Draw what you see in your eyepiece inside the circle. The best exercise for drawing is to observe the moons of Jupiter every night or so. [. . . ] CAUTION: Do not use scented or lotioned tissues or damage could result to the optics. DO NOT use a commercial photographic lens cleaner. OPTIONAL ACCESSORIES #928 45° Erecting Prism (1. 25 O. D. ): Correctly orients the telescopic image during terrestrial observing and yields an image position at a 45° angle to the main telescope tube, resulting in a more comfortable observing position in most cases. Additional Eyepieces (1. 25" barrel diameter): For higher or lower magnifications with the telescopes that accommodate 1. 25" eyepieces, Meade Series 4000 Super Plössl eyepieces, available in a wide variety of sizes, provide a high level of image resolution and color correction at an economical price. [. . . ]