background image

through the field of view of the
eyepiece more rapidly.

Place the object to be viewed at the
edge of the field and, without
touching the telescope, watch it drift

through the field to the other side before
repositioning the telescope so that the object
to be viewed is again placed at the edge of
the field, ready to be further observed.

Vibrations:  Avoid touching the eyepiece
while observing through the telescope.
Vibrations resulting from such contact will
cause the image to move. Avoid observing
sites where vibrations cause image
movement (for example, near railroad

tracks). Viewing from the upper floors of a
building may also cause image movement.

Let your eyes “dark-adapt:” 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.

Viewing through windows:  Avoid setting up
the telescope inside a room and observing
through an opened or closed window pane.
Images may appear blurred or distorted due
to temperature differences between inside
and outside air. Also, it is a good idea to
allow your telescope to reach the ambient
(surrounding) outside temperature before
starting an observing session.

When to observe:  Planets and other 
objects viewed low on the horizon often 
lack sharpness—the same object, when
observed higher in the sky, will appear
sharper and have greater contrast. Try
reducing power (change your eyepiece) if
your image is fuzzy or shimmers. Keep in

mind that a bright, clear, but smaller image
is more interesting than a larger, dimmer,
fuzzy one. Using too high a power eyepiece 
is one of the most common mistakes made
by new astronomers.

Dress Warm:  Even on summer nights, the
air can feel cool or cold as the night wears
on. It is important to dress warm or to have
a sweater, jacket, gloves, etc., nearby.

Know your observing site:  If possible, know
the location where you will be observing. Pay
attention to holes in the ground and other
obstacles. Is it a location where wild
animals, such as skunks, snakes, etc., may
appear? Are there viewing obstructions such
as tall trees, street lights, headlights and so
forth? The best locations are dark locations,
the darker the better. Deep space objects
are easiest to see under dark skies. But it is
still possible to observe even in a city.

Surf the Web and visit your local library:
The internet contains a huge amount of
astronomical information, both for children
and adults. Check out astronomy books from
your library. Look for star charts—these are
available on a monthly basis in 

Astronomy

and 

Sky and Telescope magazines.

14

ASTRONOMY RESOURCES

The Meade 4M Community
6001 Oak Canyon, Irvine, CA 92618

Astronomical League
Executive Secretary
5675 Real del Norte, Las Cruces, NM 88012

The Astronomical Society of the Pacific
390 Ashton Ave., San Francisco, CA 94112

The Planetary Society
65 North Catalina Ave, Pasadena, CA 91106

International Dark-Sky Association, Inc.
3225 N. First Avenue, Tucson, AZ 85719-2103

Meade80EQ-AR  4/28/06  9:55 AM  Page 16

               

    

 

  

 

Содержание 80EQ-AR

Страница 1: ...MEADE INSTRUCTION MANUAL 80mm 3 1 Equatorial Refracting Telescope 80EQ AR www meade com Meade80EQ AR 4 28 06 9 55 AM Page 1...

Страница 2: ...mm The lens diameter is one of the most important pieces of information about the telescope The size of the primary mirror determines how much detail you will be able to see in your telescope The foca...

Страница 3: ...n 8 Cradle ring 9 Red dot viewfinder bracket mounting thumbscrews see Inset A 10 Red dot viewfinder 11 Focuser draw tube 12 Eyepiece 13 Eyepiece holder and thumbscrew 14 Diagonal mirror 15 Diagonal mi...

Страница 4: ...ock 16 Latitude adjustment knob 17 Latitude circle 18 Tripod to mount attachment point see Fig 3 19 Latitude adjustment lock not shown 20 Equatorial mount 21 Tripod to mount wingnuts see Fig 3 22 Decl...

Страница 5: ...eg lock thumbscrew to relock the leg lock d Repeat for the other two legs ATTACH THE ACCESSORY TRAY The tray helps stabilize the tripod and is also a convenient holder of eyepieces and other Meade acc...

Страница 6: ...c ci id de en nt tl ly y s sl li ip pp pi in ng g BALANCING THE TELESCOPE In order for the telescope to move smoothly on its mechanical axes it must first be balanced as follows 1 Loosen the right asc...

Страница 7: ...star hopping to locate celestial objects They use star charts or astronomical software to identify bright stars and star patterns as landmarks in their search for astronomical objects Another techniq...

Страница 8: ...c minutes and arc seconds e g 15 27 33 Dec locations North of the celestial equator are indicated with a plus sign The celestial map also contains two poles and an equator just like a map of the Earth...

Страница 9: ...a horizontal direction Rotate the telescope until it points due North Use a compass or locate Polaris the North Star as an accurate reference to North See Fig 7 2 Level the mount with the horizon if...

Страница 10: ...d to unlock the TOO MUCH POWER Can you ever have too much power If the type of power you re referring to is eyepiece magnification yes you can The most common mistake of the beginning observer is to o...

Страница 11: ...r observing the Moon you are ready to step up to the next level of observation the planets There are four planets that you can easily observe in your telescope Venus Mars Jupiter and Saturn Nine plane...

Страница 12: ...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 t...

Страница 13: ...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 so...

Страница 14: ...You can also change magnification by using a Barlow lens The Barlow lens doubles the power of your telescope See Fig 9 Meade offers a complete line of eyepieces for your telescope Most astronomers hav...

Страница 15: ...ck sharpness the same object when observed higher in the sky will appear sharper and have greater contrast Try reducing power change your eyepiece if your image is fuzzy or shimmers Keep in mind that...

Страница 16: ...ope Just divide the focal length of the telescope by the focal length of the eyepiece Focal Length of the Telescope Focal Length of the Eyepiece Magnification Look at the specifications You will see t...

Страница 17: ...r brush or compressed air gently to remove dust If the telescope s dust cover is replaced after each observing session cleaning of the optics will rarely be required Fingerprints and organic materials...

Страница 18: ...ts which vary from state to state Meade reserves the right to change product specifications or to discontinue products without notice This warranty supersedes all previous Meade product warranties 17...

Страница 19: ...18 Meade80EQ AR 4 28 06 9 55 AM Page 20...

Страница 20: ...OBSERVER OBJECT NAME DATE TIME OBSERVED CONSTELLATION EYEPIECE SIZE SEEING CONDITIONS EXCELLENT GOOD POOR NOTES DRAWING OF IMAGE OBSERVATION LOG Meade80EQ AR 4 28 06 9 55 AM Page 21...

Страница 21: ...OBSERVER OBJECT NAME DATE TIME OBSERVED CONSTELLATION EYEPIECE SIZE SEEING CONDITIONS EXCELLENT GOOD POOR NOTES DRAWING OF IMAGE OBSERVATION LOG Meade80EQ AR 4 28 06 9 55 AM Page 22...

Страница 22: ...www meade com Meade Instruments Corporation 6001 Oak Canyon Irvine California 92618 1 800 626 3233 Meade80EQ AR 4 28 06 9 55 AM Page 24...

Отзывы: