Meade 90AZ-ADRB Скачать руководство пользователя страница 8

– 8 –

Looking at or near the 

Sun

will cause 

irreversable

damage to your eye. Do not point this telescope at or near the Sun. Do not look through the telescope as it is moving.

Optional color filters help bring out detail and contrast of the planets. Meade offers a line of inexpensive
color filters.

Beyond the Solar System:  Once you have observed our own system of planets, it’s time to really travel
far from home and look at stars and other objects.

You can observe thousands of stars with your telescope. At first, you may think stars are just pinpoints
of light and aren’t very interesting. But look again. There is much information that is revealed in stars.

The first thing you will notice is that not all stars are the same colors. 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. These stars orbit each other. What do you notice about these stars? Are they
different colors? Does one seem brighter than the other?

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. Nebula means cloud. Most nebulas are
clouds of gas. The two easiest to see in the Northern Hemisphere are the Orion nebula during the
winter and the Trifid 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. These explosions are called
supernovas.

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. Note the
time and the date.

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.
Try to make Jupiter and the moons approximately the same size as they look in your eyepiece. You
will see that the moons are in a different position every night. As you get better at drawing, try more
challenging sights, like a crater system on the moon or even a nebula.

Go your library or check out the internet for more information about astronomy. Learn about the basics:
light years, orbits, star colors, how stars and planets are formed, red shift, the big bang, what are the
different kinds of nebula, what are comets, asteroids and meteors and what is a black hole. The more
you learn about astronomy, the more fun, and the more rewarding your telescope will become.

SOME OBSERVING TIPS

Eyepieces:  Always begin your observations using the 25mm low-power eyepiece. The 25mm
eyepiece delivers a bright,  wide field of view and is the best to use for most viewing conditions. Use
the high-power 9mm eyepiece to view details when observing the Moon and planets. If the image
become fuzzy, switch back down to a lower power. Changing eyepieces changes the power or
magnification of your telescope.

By the way, you might have noticed something strange when you looked through your eyepiece.
Although the image is right-side up, it is reversed. That means reading words can be a problem. But it
has no affect on astronomical objects. If you wish to have a fully corrected image, check out Meade’s
optional Erecting Prism in the Optional Accessory section.

 

Содержание 90AZ-ADRB

Страница 1: ... 2007 Instruction Manual Meade 90AZ ADRB 90mm 3 5 Altazimuth Refracting Telescope 800 626 3233 www meade com ...

Страница 2: ...h America are not included in this warranty but are covered under separate warranties issued by Meade international distributors RGA Number Required Prior to the return of any product or part a Return Goods Authorization RGA number must be obtained from Meade by writing or by calling 800 626 3233 Each returned part or product must include a written statement detailing the nature of the claimed def...

Страница 3: ...muth Mount Movements and Lock 5 Red Dot Viewfinder Alignment 6 Using the Telescope 6 Some Observing Tips 8 Specifications 10 What Do the Specifications Mean 10 Use the Specifications to Calculate the Magnification of your Eyepiece 10 Taking Care of Your Telescope 11 Optional Accessories 11 ...

Страница 4: ...izontal slow motion fine adjustment control cable 5 Cradle assembly 18 Altazimuth mount saddle plate slot 6 Cradle lock knob not visible 19 Adjustable sliding center leg extension 7 Tripod legs 20 Tripod leg lock knob see inset A 8 Leg brace 21 Dew shield lens shade 9 Leg brace supports 22 Front lens cap not visible in photo 10 Vertical lock knob 23 Focusing knob 11 Horizontal lock knob 24 Red dot...

Страница 5: ...in one of the leg braces 8 Fig 1 Thread one of the one half inch bolts through the holes Thread a hex nut over the end of the bolt Finger tighten the bolt and hex nut See Fig 2 Repeat with the two other leg braces 4 Thread the accessory tray 26 Fig 1 over the center mounting bolt and tighten to a firm feel 5 Extend the sliding center portion of the adjustable height tripod leg 19 Fig 1 to the desi...

Страница 6: ...witch to a position that is comfortable for your eyesight and the darkness of your observing site 4 Slide the intensity switch all the way to the left to turn off the red dot viewfinder Remember to turn the device off at the end of your viewing session USING THE TELESCOPE Observe during the daytime Try out your telescope during the daytime at first It is easier to learn how it operates and how to ...

Страница 7: ...use it has a very thick atmosphere of gas When Mars is close to the Earth you can see some details on Mars and sometimes even Mars polar caps But quite often Mars is further away and just appears as a red dot with some dark lines crisscrossing it Jupiter Saturn Uranus Neptune and Pluto comprise the outer planets These planets except for Pluto are made mostly of gases and are sometimes called gas g...

Страница 8: ...hese are large clouds of gas in which new stars are being born Some nebulas are the remains of stars exploding These explosions are called supernovas 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 ...

Страница 9: ...t Allow five or ten minutes for your eyes to become dark adapted before observing Use a red filtered flashlight to protect your night vision when reading star maps or inspecting the telescope Do not use use a regular flash light or turn on other lights when observing with a group of other astronomers You can make your own red filtered flashlight by taping red cellophane over a flashlight lens View...

Страница 10: ...s equatorial mounting USE THE SPECIFICATIONS TO CALCULATE THE MAGNIFICATION OF YOUR EYEPIECE The power of a telescope is how much it magnifies objects Your 25mm eyepiece magnifies an object 36 times Your 9mm eyepiece magnifies objects 100 times But if you obtain other eyepieces you can calculate how much magnification they have with your telescope Just divide the focal length of the telescope by t...

Страница 11: ... of solution Use soft white facial tissues and make short gentle strokes Change tissues often 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 ma...

Страница 12: ...Looking at or near the Sun will cause irreversable damage to your eye Do not point this telescope at or near the Sun Do not look through the telescope as it is moving 800 626 3233 www meade com 0207 ...

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