Thames & Kosmos My Discovery Telescope Manual

Thames & Kosmos Legetøj My Discovery Telescope

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Side 1/2

Hubble Telescope

alilei

Introduction

A telescope is a device that allows you get a better

look at far away objects by enlarging them. Your

telescope is a type of telescope called a refracting

telescope. Telescopes are the most important

optical instruments in astronomy, the branch of

science that deals with celestial objects, outer

space, and the universe as a whole. Some

telescopes are really famous, like the Hubble

Space Telescope, which is out in space and sends

back amazing pictures of very distant stars.

Telescopes have been around for

about 400 years. We don’t know

exactly who invented them.

However, Galileo Galilei (who

lived from 1564 to 1642) was the

first person to explore the sky

using the device. Among other

things, p1-he examined the surface

of the moon and discovered that it had mountains and craters. This

was an important step for astronomy.

Of course, your telescope isn’t just for looking at the night sky. You

can also use it to look at objects on Earth in the distance that you

would like to look at more closely. Scientists call this terrestrial

observation (from the Latin

terra

= earth). But it can also be used

whenever you are too far away from the action. So, for example, you

can use your telescope if you are

sitting high up in the stands at a

soccer or baseball game and you

want to have a closer look at the

players on the field.

Have you ever wanted to be able to take a closer look

at things that are far away? The Moon and stars, for

example? Or a bird perched up in a tree? Or a boat

sailing out on the open ocean? Now you can do all of

this with the My Discovery Telescope!

Telescope

My Discovery

WARNING! Never look directly at the sun

either with the naked eye or with the telescope!

There is a risk of blinding!

Do not place near windows or in direct sunlight.

Magnified light may result in a risk of fire.

WARNING! Not suitable for children under

3 years. Choking hazard — small parts

may be swallowed or inhaled. Keep the

packaging and instructions as they

contain important information.

My Discovery Telescope

How do you use

a telescope?

Your telescope has a twelve-times magnification

power. This means that you can see objects

roughly twelve times larger through the

telescope than you can with just your eyes alone.

In order to look at an object, hold your telescope

so that the dew shield and the objective lens are

pointing away from you and facing toward the

object. Press the eye cup firmly around either of

your eyes (whichever works best for you) when

you do this. The eye cup is specially shaped and

soft, so you can comfortably press it to your eye

socket. This is ideal for observing things because

it means no light can enter into your eye from the

side. Choose which eye is best for you.

The object that you want to look at should be at

least five meters (or about 15 feet) away. Now use

your other free hand to slide the wide part of the

telescope at the front (called the tube) backward

or forward until you can see the object in focus.

The front of your telescope, which points toward

the object you are looking at, is called the

objective. Here, there is a large converging lens

that bundles the light rays. Inside your telescope,

there are also some rings called baffles. These

allow only the bundled light rays to pass through

the middle and eliminate the light rays around the

edges (called scattered light). At the other end

(the end you look into), there is another lens,

which, on a Galilean telescope, is called a

diverging lens. As this lens is in the eyepiece, it is

called the eyepiece lens or ocular lens (from the

Latin

oculus

= eye).

When you slide the two parts of the telescope

toward each other, you are reducing the distance

between the two lenses. This allows you to bring

the image that you want to look at into focus.

Germany

This work, including all its parts, is copyright protected. Any use outside the specific limits of

the copyright law without the consent of the publisher is prohibited and punishable by law. This

applies specifically to reproductions, translations, microfilming, and storage and processing in

electronic systems and networks. We do not guarantee that all material in this work is free

from copyright or other protection.

Text: Inka Kiefert and Mark Bachofer

Project management: Dr. Mark Bachofer

Technical product development: Dr. Petra Zimmermann

Manual design concept: Atelier Bea Klenk, Berlin

Manual layout: Mariela Schwerdt, Design & Feinschliff Studio, Stuttgart

Manual illustrations: Friedrich Werth, Horb

Manual photos: dlognord (moon) © fotolia.com; Lucky water (branch); xpixel (moss);

Marco.Warm (beech leaves); Olga Popova (pine branch); Viktor Tyakht (bird) (all previous ©

shutterstock.com); Michael Flaig, Stuttgart (telescope); all others Kosmos Photo Archive

Translation: Stephen O’Connor

Design editing: Pamela Evans, Ted McGuire

Additional packaging design: Dan Freitas

The publisher has made every effort to locate the holders of image rights for all of the photos

used. If in any individual cases any holders of image rights have not been acknowledged, they

are asked to provide evidence to the publisher of their image rights so that they may be paid an

image fee in line with the industry standard.

Thames & Kosmos® is a registered trademark of Thames & Kosmos, LLC.

Distributed in North America by Thames & Kosmos, LLC. Providence, RI 02903;

Phone: 800-587-2872; Web: www.thamesandkosmos.com

Distributed in United Kingdom by Thames & Kosmos UK LP. Cranbrook, Kent TN17 3HE;

Phone: 01580 713000; Web: www.thamesandkosmos.co.uk

Printed in Taiwan / Imprimé en Taiwan

We reserve the right to make technical changes.

The light rays are a long way apart. You capture these rays using the

objective and the lenses bring them closer and closer together. They

are then so close together in the eyepiece that you can now see

them much more clearly with your eye.

When observing, it helps if you can keep your telescope still. It is not

easy to hold your telescope without wobbling, even though your

telescope is not particularly heavy. Try resting the elbow of the arm

you are using to hold the telescope on a wall, on a parked car, a

stable tree branch, or something similar. It is best to try it out and

see what works best.

Happy

exploring!

Classic refracting telescope (Galilean telescope)

Eyepiece lens

Telescope tube (with baffles inside) Dew shield

Light rays

Baffles

Eyepiece lens

(Diverging lens)

Objective lens

(Converging lens)

Objective lens

Metal focuser (slide to focus)Eyepiece with soft eye cup

676919-02-300620

Produkt Specifikationer

Mærke:	Thames & Kosmos
Kategori:	Legetøj
Model:	My Discovery Telescope
Brugervejledning:	Ja
Produkttype:	Teleskop
Pakketype:	Kasse
Anbefalet alder (min.):	6 År
Foreslået køn:	Dreng/Pige
Batterier påkrævet:	Ingen
Tema:	Astronomi