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Optical tube

This is the main optical component of the telescope.

The glass lens at the front of the tube gathers incom-
ing light and focuses it by bending (or refracting) the
light rays. The tube assembly has several parts built
into it, which are shown and discussed in detail in the
next section.

90° Mirror star diagonal

The diagonal contains a mirror that reflects the light

gathered through the optical tube to the eyepiece. The
diagonal is angled to allow for viewing objects that are
high in the sky from a comfortable position.

25mm Kellner eyepiece

The eyepiece is the part of the telescope that you actu-

ally look through to see things. The focal length of the
eyepiece and the telescope determines the magnifying
power of the telescope. Magnification is discussed in
more detail in the Using Your Telescope section.

EZ Finder II reflex sight

This is a special “finder” that helps you aim the tele-

scope and locate objects in the sky for viewing. The EZ
Finder II generates a red LED “dot” that shows where
your telescope is aimed. The use of the EZ Finder II is
discussed in the Getting Started section.

Equatorial mount

This mount couples the optical tube (1) to the tripod. It

also serves to allow tracking of celestial objects with
the telescope when properly polar-aligned. See the
Aligning the Equatorial Mount section for more details.

Counterweight

This counterweight will balance out the optical tube (1)

when it is being aimed at celestial objects.

Right ascension slow-motion control cable

This cable is used to make small movements in right

ascension when aiming the telescope. Right ascension
is explained in the Aligning the Equatorial Mount sec-
tion. This cable is also used to “track” stellar objects
and keep them in the eyepiece’s (3) field of view

Declination slow-motion cable

This cable is used to make small movements in 

declination when aiming the telescope. Declination is
explained in the Aligning the Equatorial Mount section.

Tripod legs

These aluminum tripod legs support the telescope and

can extend from 27" to 50" long.

Accessory Tray

This tray is a convenient place for holding extra eye-

pieces and other small pieces of equipment.

Accessory tray bracket

This bracket holds the accessory tray (10).

Leg lock knobs

These knobs lock the tripod legs into place. Loosen

them to lengthen or shorten the tripod legs. Tighten
them once you have the leg at the desired length. Be
certain that all three tripod legs are equally extended to
assure your telescope is level.

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11

10

9

8

7

6

5

4

3

2

1

5

®

The Basic Components of Your Telescope

Figure 1 shows the fully assembled Observer 60mm EQ. All the major components of the telescope are described and num-
bered to help you identify each part and understand its use. Refer back to this figure when assembling the telescope.

Содержание Observer 60mm EQ

Страница 1: ...roviding Exceptional Consumer Optical Products Since 1975 Customer Support 800 676 1343 E mail support telescope com Corporate Offices 831 763 7000 P O Box 1815 Santa Cruz CA 95061 Orion Observer 60mm EQ 9853 Equatorial Refractor Telescope ...

Страница 2: ...2 ...

Страница 3: ...s 7 8 3 Tripod legs 9 with attached accessory tray bracket 11 1 Accessory tray 10 with attachment wing screws 1 Counterweight shaft 25 1 Counterweight 6 1 Latitude adjustment T bolt 29 1 EZ Finder II reflex sight 4 3 Tripod leg attachment screws with wingnuts and washers 31 3 Leg lock knobs 12 1 25mm Kellner eyepiece 1 10mm Kellner eyepiece 1 90 Mirror star diagonal 2 1 Dust cover Welcome to the e...

Страница 4: ...4 2 4 8 6 7 Observer 60mm Refractor 11 10 3 9 Figure 1 Observer 60mm EQ components 5 1 12 ...

Страница 5: ...ning the Equatorial Mount section for more details Counterweight This counterweight will balance out the optical tube 1 when it is being aimed at celestial objects Right ascension slow motion control cable This cable is used to make small movements in right ascension when aiming the telescope Right ascension is explained in the Aligning the Equatorial Mount sec tion This cable is also used to trac...

Страница 6: ...Figure 2a Optical tube components 6 14 Observer 60mm Telescope Tube Figure 2b Observer 60mm focuser detail 15 3 2 17 4 1 3 2 17 10 18 19 13 16 20 ...

Страница 7: ...s a rack an pinion system to bring objects into focus Focus wheels These wheelswhen turned move the focuser drawtube 17 in or out Use it to bring things into focus when you are looking in the eyepiece 3 Diagonal holder thumbscrews These two thumbscrews secure the 90 mirror star diagonal 2 into the focuser drawtube 17 These should only be loosened to remove or rotate the star diagonal Eyepiece hold...

Страница 8: ...Figure 3a Equatorial mount detail 8 Figure 3b Observer 60mm EQ tripod leg and mount attachment detail 22 Observer 60mm Tripod and Mount 23 25 21 26 27 8 29 31 31 30 7 24 28 6 ...

Страница 9: ...atitude scale This scale gives a general indication of the latitude set ting of the equatorial mount 5 Latitude lock T bolt This T bolt must be loosened to make adjustments to the latitude of the telescope Latitude adjustment T bolt This T bolt is used to make adjustments to the latitude setting of the equatorial mount 5 Azimuth lock knob Loosening this knob will allow the equatorial to be adjuste...

Страница 10: ... and the 40 line up Then retighten the latitude lock T bolt The declination Dec and right ascension R A axes may need re posi tioning rotation as well Be sure to loosen the R A and Dec lock knobs 22 24 before doing this Retighten the R A and Dec lock knobs once the equatorial mount is properly oriented 7 Thread the counterweight shaft 25 into the equatorial mount 5 at the base of the declination a...

Страница 11: ... and should not drift from where you point it Focusing the Telescope With the 25mm Kellner eyepiece 3 inserted into the 90 mir ror star diagonal 2 and secured with the thumbscrews aim the optical tube 1 so the front open end is pointing in the general direction of an object at least 1 4 mile away Now with your fingers slowly rotate one of the focus wheels 18 until the object comes into sharp focus...

Страница 12: ...them from drifting out of the telescope s field of view while you re observing This is accomplished by slowly rotating the telescope on its right ascension R A axis using only the R A slow motion cable 7 But first the R A axis of the mount must be aligned with the Earth s rotational polar axis a process called polar alignment Understanding Polar Alignment To understand what you will be doing when ...

Страница 13: ...ts roughly at Polaris If you can not see Polaris directly from your observing site consult a compass and rotate the mount so the telescope points North Retighten the azimuth lock knob The equatorial mount is now polar aligned From this point on in your observing session you should not make any further adjustments in the azimuth or the latitude of the mount nor should you move the tripod Doing so w...

Страница 14: ...itude on Earth and Dec is similar to latitude The R A and Dec values for celestial objects can be found in any star atlas or star catalog The mount s R A setting circle 23 is scaled in hours from 1 through 24 with small marks in between representing 10 minute increments The numbers closest to the R A axis gear apply to viewing in the Southern Hemisphere while the num bers above them apply to viewi...

Страница 15: ... other directions Let s say you want to view an object that is directly overhead at the zenith How do you do it One thing you DO NOT do is make any adjustment to the lat itude adjustment T bolt 29 That will nullify the mount s polar alignment Remember once the mount is polar aligned the telescope should be moved only on the R A and Dec axes To point the scope overhead first loosen the R A lock kno...

Страница 16: ...ez then you have fog haze clouds smog or other conditions that are hindering your viewing See Figure 11 Eyepiece Selection By using eyepieces of different focal lengths it is possible to attain many magnifications or powers with the Observer 60mm Your telescope comes with two Kellner eyepieces Figure 12 a 25mm which gives a magnification of 36x and a 10mm which gives a magnification of 90x Other e...

Страница 17: ...the front opening of the Observer 60mm The primary attrac tion is sunspots which change shape appearance and loca tion daily Sunspots are directly related to magnetic activity in the Sun Many observers like to make drawings of sunspots to monitor how the Sun is changing from day to day Important Note Do not look at the Sun with any optical instrument without a professionally made solar filter or p...

Страница 18: ...s in temperature and humidity Do not store the tele scope outdoors although storage in a garage or shed is OK Small components like eyepieces and other accessories should be kept in a protective box or storage case Keep the caps on the front of the telescope and on the focuser draw tube when not in use Your Observer 60mm telescope requires very little mechani cal maintenance The optical tube is al...

Страница 19: ...19 ...

Страница 20: ...ay Watsonville CA 95076 If the product is not registered proof of purchase such as a copy of the original invoice is required This warranty does not apply if in Orion s judgment the instrument has been abused mishan dled or modified nor does it apply to normal wear and tear This warranty gives you specific legal rights and you may also have other rights which vary from state to state For further w...

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