background image

planetoids and other debris left over from
the birth of our sun. Recently astronomers
have found large objects in this area and
they may increase the number of planets in
our solar system.

The four planets closest to the Sun are rocky
and are called the inner planets. Mercury,
Venus, Earth and Mars comprise the inner
planets. Venus and Mars can be easily seen
in your telescope.

Venus is seen before dawn or after sunset,
because it is close to the Sun. You can
observe Venus going through crescent
phases. But you cannot see any surface
detail on Venus because 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, and Neptune
comprise the outer planets. These planets,
are made mostly of gases and are

sometimes called gas giants. If they had
grown much bigger, they may have become
stars.

Jupiter is quite interesting to observe. You
can see bands across the face of Jupiter. The
more time you spend observing these bands,
the more detail you will be able to see.

One of the most fascinating sights of  Jupiter
are its moons. The four largest moons are
called the Galilean moons, after the
astronomer Galileo, who observed them for
the first time. If you’ve never watched the
Galilean moons in your telescope before,
you’re missing a real treat! Each night, the

moons appear in different positions
around the Jovian sky. This is
sometimes called the Galilean dance.
On any given night, you might be able
to see the shadow of a moon on the face of
Jupiter, see one moon eclipse another or
even see a moon emerge from behind
Jupiter’s giant disk. Drawing the positions of
the moons each night is an excellent
exercise for novice astronomers.
Any small telescope can see the four
Galilean moons of Jupiter (Fig. 5), plus a few
others, but how many moons does Jupiter
actually have?  No one knows for sure! Nor
are we sure how many Saturn has either. At
last count, Jupiter had over 60 moons, and

7

Fig. 5

Looking at or near the 

Sun

will cause 

irreversible

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

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Содержание NG70-SM

Страница 1: ...MANUAL racting Telescope NG 70SM 18 PM Page 1...

Страница 2: ...nt and damage to your eye Eye damage is often o there is no warning to the observer that as occurred until it is too late Do not point the at or near the Sun Do not look through the or viewfinder as i...

Страница 3: ...ing the tripod Attach the optical tube to the mount Attach the red dot viewfinder Attach the diagonal mirror and eyepiece Balancing the optical tube Align the red dot viewfinder Study the the picture...

Страница 4: ...Meade NG 70SM Altazimuth Refracting Telescope Inset A Red Dot Viewfinder Assembly Inset B Altazimuth or Azimuth Mount Inset C Tripod Legs and Accessory Tray Not visible Inset C Inset B Inset A 19 PM...

Страница 5: ...k knob 11 into the mounting bracket and tighten until firm ATTACH THE RED DOT VIEWFINDER An eyepiece 1 has a narrow field of view A viewfinder 2 has a wider field of view which makes it easier to loca...

Страница 6: ...e red dot viewfinder Turn one or more of the viewfinder s alignment screws into that the t d sition e to a be too ount o suit T TH HE E O OF F 3 until the red dot is precisely over the same object as...

Страница 7: ...Use the red dot viewfinder If you have not done so align the viewfinder 2 with the telescope s eyepiece 1 as described earlier Look through the viewfinder until you can see the object It will be easi...

Страница 8: ...activity You can also see mountain ranges and fault lines on the Moon f on e e s r er Use a neutral density filter often called a moon filter when observing the Moon Neutral density filters are avail...

Страница 9: ...treat Each night the moons appear in different positions around the Jovian sky This is sometimes called the Galilean dance On any given night you might be able to see the shadow of a moon on the face...

Страница 10: ...e 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 ot...

Страница 11: ...f 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 powe...

Страница 12: ...d cellophane over a flashlight lens of g a tar D an nd y Viewing through windows Avoid setting up the telescope inside a room and observing through an opened or closed window pane Images may appear bl...

Страница 13: ...he lower the focal ratio number the faster the exposure f 5 is faster than f 10 The faster ASTRONOMY RESOURCES The Meade 4M Community 27 Hubble Irvine CA 92618 Astronomical League Executive Secretary...

Страница 14: ...scope is a precision optical instrument designed for a lifetime of rewarding viewing It will rarely if ever require factory servicing or maintenance Follow these guidelines to keep your telescope in t...

Страница 15: ...located under the base of the telescope See F Fi ig g 6 6 To adjust the vertical tension of the optical tube first loosen the attachment knobs 11 and remove the optical tube from the bracket Use an ad...

Страница 16: ...m mu us st t be obtained from Meade by calling 800 626 3233 Each returned part or product must include a written statement detailing the nature of the claimed defect as well as the owner s name addre...

Страница 17: ...ate ou tate uct e damage to your eye Do not point this telescope at or near the Sun Do not look through the telescope as it is moving 19 PM Page 17...

Страница 18: ...ENT GOOD POOR DRAWING OF IMAGE RVATION LOG 19 PM Page 18...

Страница 19: ...NT GOOD POOR DRAWING OF IMAGE RVATION LOG 19 PM Page 19...

Страница 20: ...NT GOOD POOR DRAWING OF IMAGE RVATION LOG 19 PM Page 20...

Страница 21: ...NT GOOD POOR DRAWING OF IMAGE RVATION LOG 19 PM Page 21...

Страница 22: ...NT GOOD POOR DRAWING OF IMAGE RVATION LOG 19 PM Page 22...

Страница 23: ...19 PM Page 23...

Страница 24: ...www meade com Meade Instruments Corporation 27 Hubble Irvine California 0 626 3233 50 08034 19 PM Page 24...

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