Celestron 80AZS Manuel utilisateur

INSTRUCTION MANUAL

#21087

ENGLISH

80AZS

80 MM REFRACTOR TELESCOPE

powerseeker

INCLUDES PRE-ASSEMBLED ALUMINUM TRIPOD WITH ACCESSORY TRAY

ENGLISH I 3

TABLE OF CONTENTS

INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

What’s in the Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Setting up the tripod . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Attaching the Telescope Tube to the Mount . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Moving the Telescope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

Installing the Diagonal & Eyepiece . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Installing the Finderscope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

Aligning the Finderscope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

PowerSeeker 80AZS SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

4 IENGLISH

ENGLISH I 5

INTRODUCTION

Congratulations on purchasing your Celestron PowerSeeker 80AZS telescope! The

PowerSeeker is made of high-quality materials to ensure stability and durability. It features

a compact and portable design with ample optical performance to help you discover the

exciting world of amateur astronomy. This telescope is also ideal for terrestrial observations. It

comes with an easy-to-use tripod and mount, which allow you to move the telescope up and

down or left to right to point at a distant target. Your PowerSeeker will give you a lifetime of

pleasure with a minimal amount of maintenance.

Celestron backs the PowerSeeker telescope with a two-year limited warranty. For details, see our website at

www.celestron.com

Your Celestron PowerSeeker features:

• Fully coated glass optical elements for clear, crisp images

• Smooth functioning, rigid altazimuth mount

• Preassembled aluminum tripod

• Quick and easy no-tool setup

• Erect image prism, which ensures a correctly-oriented image when viewing terrestrial objects

• “TheSkyX – First Light Edition” astronomy software, which provides information about the night sky and printable sky maps

Take time to read through this manual before setting up your telescope. Try setting it up a few times during the day until

you become familiar with the use of your telescope. It is much easier to do this in the daytime than trying to set the tele-

scope up for the ﬁrst time in the dark.

Your telescope is designed to give you years of fun and rewarding observations. However, there are a few things to consid-

er before using your telescope that will ensure your safety and protect your equipment.

WARNING:

Never look directly at the sun with the naked eye or with a telescope (unless you have the proper solar ﬁlter).

Permanent and irreversible eye damage may result.

Never use your telescope to project an image of the sun onto any surface. Internal heat build-up can damage the telescope and any accessories attached to it.

Never use an eyepiece solar ﬁlter or a Herschel wedge. Internal heat build-up inside the telescope can cause these devices to crack or break, allowing unﬁltered sunlight to

pass through to the eye.

Do not leave the telescope unsupervised, especially when adults unfamiliar with your telescope or children are present.

6 IENGLISH

1. Objective Lens 7. Altitude Slow Motion Rod

2. Telescope Optical Tube 8. Accessory Tray

3. Finderscope 9. Tripod

4. Eyepiece 10. Azimuth Locking Knob

5. Erect Image Diagonal 11. Altazimuth Mount

6. Focus Knob 12. Altitude Locking Knob

Fig. 1-1

ENGLISH I 7

ASSEMBLY

WHAT’S IN THE BOX

• Telescope tube

• Altazimuth mount and tripod

• H20mm (20x) – 1.25”

• SR4mm (100x) – 1.25”

• 3x Barlow Lens

SETTING UP THE TRIPOD

1. Remove the tripod from the box (Figure 2-1). Stand the tripod upright and separate the tripod legs. Then, push down

slightly on the tripod leg brace (Figure 2-2). Note: The very top of the tripod is called the altazimuth mount.

2. Next, install the tripod accessory tray (Figure 2-3) by placing the threaded post on the bottom of the tray over the hole

in the center of the leg support bracket (Figure 2-4). Turn the entire accessory tray clockwise to screw the tray in place.

Be careful not to over tighten.

3. Extend the legs to the desired height. Unlock the tripod leg lock knobs at the bottom of each leg (Figure 2-5) by turning

them counterclockwise and pull the legs out. Then lock the knobs securely. A fully extended tripod looks similar to the

image in Figure 2-6.

Fig. 2-4 Fig. 2-5 Fig. 2-6

Fig. 2-2

Fig. 2-1 Fig. 2-3

NOTE: The tripod will be the most rigid and stable at lower height settings.

• Erect image diagonal – 1.25”

• Finderscope: 5x24

• Accessory tray

• TheSkyX – First Light Edition DVD-ROM

8 IENGLISH

ATTACHING THE TELESCOPE TUBE TO THE MOUNT

1. Loosen the silver lock knob on the right side of the altazimuth mount.

2. While holding the telescope tube above the altazimuth mount, insert the long, silver rod on the right side of the optical

tube into the hole under the lock knob (see Figure 2-7).

3. Move the telescope tube until you can insert the two altitude hubs on either side of the tube into the notches at the top

of the altazimuth mount (see Figure 2-8).

4. Tighten the silver lock knob.

5. Thread the two hand bolts through the altazimuth mount and into the two altitude hubs on the telescope tube to secure

the tube in place (see Figure 2-9).

MOVING THE TELESCOPE

The PowerSeeker is easy to move wherever you want to point it. Adjust the altitude (up-and-down position) by loosening

the altitude lock knob and moving the telescope tube up or down. To move the telescope in the azimuth (left-to-right) di-

rection, loosen the azimuth lock knob and move the telescope. When the telescope is centered on your target, lock down

the altitude and azimuth lock knobs.

For ﬁne adjustments in altitude, turn the ring of the altitude slow motion rod (when the altitude lock is tight) in either direc-

tion (see Figure 2-10).

Fig. 2-7 Fig. 2-8 Fig. 2-9

Fig. 2-10

ENGLISH I 9

INSTALLING THE DIAGONAL & EYEPIECE

Other The mirror diagonal is a prism that corrects the image to be right side up and oriented correctly left-to-right. The

diagonal can be rotated to the most comfortable viewing position. To install the diagonal and eyepiece:

1. Loosen the thumbscrews and insert the small barrel of the diagonal into the 1.25” eyepiece adapter on the telescope

tube (see Figure 2-11).

2. Loosen the thumbscrew on the diagonal and insert the chrome barrel of one of the eyepieces all the way down.

Tighten the set screw to secure the eyepiece in place.

INSTALLING THE FINDERSCOPE

1. Remove the two silver nuts on the top left side of the telescope tube near the focuser.

2. Place the ﬁnderscope bracket over the two threaded posts and secure it in place with the nuts (see Figure 2-12).

NOTE: The larger diameter lens of the ﬁnderscope is pointed toward the front of the main telescope.

ALIGNING THE FINDERSCOPE

1. Look through the main telescope using a 20 mm eyepiece and locate a distant target such as a streetlight or stop sign.

The target should be as far away as possible or at least ¼ mile away. Center this target in the 20 mm eyepiece.

2. Look through the ﬁnderscope and note the position of the same object.

3. Without moving the main telescope, turn the thumbscrews located around the ﬁnderscope bracket until the crosshairs

of the ﬁnderscope are centered on the object seen in the center of the telescope’s 20 mm eyepiece.

Fig. 2-11

10 IENGLISH

POWERSEEKER 80AZS SPECIFICATIONS

Model Number 21087

Description 80 AZS

Optical Design Air-spaced doublet achromatic refractor

Aperture 80 mm

Focal Length 400 mm

Focal Length f/5

Optical Coatings Fully Coated

Finderscope 5x24

Diagonal Erect Image

Eyepiece H 20 mm (20x)- 1.25”

Eyepiece SR 4 mm (100x) - 1.25”

Limiting Stellar Magnitude 11x

Resolution -- Raleigh (arc seconds) 1.74 arc seconds

Resolution -- Dawes Limit (arc seconds) 1.45 arc seconds

Light Gathering Power 131x the human eye

Mount Type Altazimuth

Tripod Adjustable height, aluminum

Telescope Tube Length 17 inches

Telescope Tube Width 4.25 inches

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