Celestron Travel Scope 50 User manual

The permanently mounted glass solar ﬁlters in this product:

• Conform to and meet the Transmission Requirements of ISO 12312-2, Filters for Direct Observation of the Sun.

• Meet the Transmission Requirements of EN 1836:2005 + A1:2007 (E) for an E15 Filter for the Direct Observation of the Sun.

• Meet the Transmission Requirements of AS/NZS 1338.1:2012, Filters for Eye Protectors.

EC Type Examination by: SAI Global Assurance Services Ltd. (Notiﬁed Body No. NB2056), MK5 8HJ U.K.

Conforms to and meets the

Transmission Requirements

of ISO 12312-2, Filters for

Direct Observation of the Sun

Instruction Manual MODEL # 22060

SUN OBSERVING TELESCOPE WITH BACKPACK

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Travel Scope 50

SOLAR WARNING

Even though your EclipSmart telescope is equipped with ISO certiﬁed solar ﬁlters that allow safe direct observation of the

Sun, there are still some important rules you should follow when solar observing:

• 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 a 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 children or adults unfamiliar with the correct operating

procedures of your telescope are present.

We recommend saving your telescope box so it can be used to store the telescope when it is not in use. Unpack the

box carefully as some parts are small. Use the parts list below to verify that all parts and accessories are present.

PARTS LIST

WHAT’S IN THE BOX

1. Telescope tube

2. Objective lens & solar ﬁlters

3. Platform tilt knob

4. Telescope mounting platform

5. Azimuth tension knob

6. Central column locking knob

7. Solar ﬁnderscope

8. 20 mm Kellner eyepiece

9. Hybrid star diagonal

10. Focus knob

11. Panning handle/Altitude clutch

12. Tripod

13. Storage backpack

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Travel Scope 50

ASSEMBLING YOUR TELESCOPE

THE MOUNT & TRIPOD

The tripod and mount come preassembled so the setup is very easy:

1. Stand the tripod upright and pull the tripod legs outward until the tripod’s center leg brace slides down to the bottom

of the center column.

2. You can extend the tripod legs to the height you desire. The lowest setting of 16 inches is perfect for tabletop use,

while the fully extended height is 43 inches. To change the height, pull open the three leg clamp levers on each leg.

Pull the legs out to the desired length and press the clamp levers closed.

3. Your tripod also has an extendable center column, allowing you to raise the mount up to another 6 inches. Turn the

center column locking knob counterclockwise until the column is unlocked. Pull the mount head upward until you are

at the desired height and turn the center column lock knob clockwise to lock the column in place. With the legs fully

extended the mount will now be 49 inches tall.

THE TELESCOPE TUBE

The tripod and mount come preassembled so the setup is very easy:

1. Loosen the platform tilt knob by turning it counterclockwise. This

allows you to tilt the telescope mounting platform 90° to the right to

the vertical position, allowing for easy access of the mounting knob

underneath the platform. Tighten the tilt knob to secure the platform

in place.

2. Locate the 1/4-20 threaded hole in the plate on the bottom of the

telescope tube. Place it over the threaded bolt on the mounting

platform and tighten the knob by turning it clockwise until it is ﬁnger

tight. DO NOT OVERTIGHTEN.

3. With the telescope now attached to the mount, loosen the platform

tilt knob and rotate the platform to the left 90 degrees to its original

horizontal position. Tighten the tilt knob to secure the platform in place.

Tripod open in lowest position Tripod leg clamps Center column lock knob

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Travel Scope 50

THE STAR DIAGONAL

The star diagonal is a mirror that diverts the light at a right angle to the light path of the telescope. This allows you

to observe in a position that is more comfortable than if you had to look straight through. When looking through the

eyepiece, the image will appear to be correctly oriented up and down, but will be mirror reversed left to right. This is

perfectly normal.

To install the diagonal:

1. Remove the cap from the focuser of the telescope by turning the silver

set screws counterclockwise until they are no longer protruding into

the focuser tube.

2. Remove the caps from both ends of the star diagonal.

3. Insert the silver barrel of the star diagonal into the focuser tube.

THE EYEPIECES

Your EclipSmart telescope comes with one high quality 20 mm eyepiece that will give you 18x magniﬁcation and a

2-degree ﬁeld of view. This is a perfect magniﬁcation for watching the phases of a solar eclipse or just looking at

sunspots at any time. You can increase the magniﬁcation by using optional eyepieces with focal lengths shorter

than 20 mm. Your scope can accept any industry-standard 1.25 inches diameter eyepiece between 5 mm and

32 mm focal length.

To install an eyepiece:

1. Loosen the setscrews on the open end of the star diagonal.

2. Insert the silver barrel of the 20 mm eyepiece into the diagonal.

3. Tighten the setscrews to secure the eyepiece.

FOCUSING

When you ﬁrst look through the telescope at the Sun, the mage will likely

be blurry. To bring the image to a sharp focus:

1. Look at the Sun through the 20 mm eyepiece.

2. Turn the focus knob located under the back and forth until the edge of

the Sun is as sharp as possible.

If observing with a group of people, each person viewing through the

telescope should focus the image for their own eyes. If you use additional

eyepieces to increase magniﬁcation, you should readjust the focus each

time you switch eyepieces. Focus Knob

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Travel Scope 50

MOVING THE TELESCOPE

The photo-style altazimuth mount is simple to use. To move the scope left and right, loosen the azimuth tension knob

at the base of the mount. Hold one of the tripod with one hand and grab the panning handle with the other. Move the

scope to the desired location. You can adjust the tension of the left and right motion by adjusting the tightness of the

azimuth tension knob.

To move the scope up and down, loosen the altitude clutch by turning the

entire panning handle counter-clockwise. Move the handle up or down as

required and turn the handle clockwise to lock the scope on target.

NOTE: When observing, the Sun will appear to slowly drift in your ﬁeld of view. This is perfectly normal and is caused by

the Earth’s rotation. You will need to re-center the Sun in your ﬁeld of view every couple of minutes. If you use

any optional higher magniﬁcation eyepieces, the drift will become more apparent and you will need to readjust the

telescope’s position more often to keep it in the ﬁeld of view.

THE SOLAR FINDERSCOPE

The EclipSmart telescope comes with a 100% safe solar ﬁnderscope that allows you to align your telescope without

looking directly at the Sun. The ﬁnderscope is already installed and is ready for use. To use this ﬁnder:

1. Point the telescope in the general direction of the Sun.

2. Look at the large round bulls-eye pattern on the sunlit side of the ﬁnderscope.

3. Adjust the position of the telescope until the shadow of the ball at the end of the projection arm is within the

innermost circle of the bulls-eye pattern.

4. This Sun should appear somewhere in the ﬁeld of view of your 20 mm eyepiece, but may not be perfectly centered.

Looking through the eyepiece, adjust the position of the telescope until the Sun is centered. If the Sun is not visible in

the eyepiece, put the shadow of the projection arm over the innermost ring and slowly search in a circular pattern until

you see the sun in the eyepiece.

Sun shadow centered on bull’s eye patternSun shadow not perfectly centered

Projection Arm Target

THE GREAT AMERICAN SOLAR ECLIPSE OF 2017

On August 21, 2017, one of the greatest spectacles of our time will take place over most of North America – a total solar eclipse. The Moon will pass between the Earth and

the Sun and the Moon’s shadow will trace a path directly across the United States from coast to coast.

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Travel Scope 50

While solar eclipses happen somewhere on Earth at least twice a year, the last time there was a total solar eclipse over the

USA was in 1979. At that time, the Sun just grazed the states of Washington, Idaho and Montana. The coast to coast August

2017 total solar eclipse is expected to be the most watched celestial event in American history.

A total solar eclipse occurs when the Moon is close enough to Earth in its orbit so that it blocks the entire disk of the Sun

from view. The partial phases of a total solar eclipse leading up to totality are incredible to watch. The Moon will ﬁrst appear

as a small dark dent in the edge of the Sun, growing to a large bite. If you are in the path of totality, the Sun will eventually

become a thin crescent and will disappear completely. For a couple of minutes, daytime turns to deep twilight and bright

stars and planets are visible in the daytime sky. After totality, the process reverses itself as the Sun reemerges from behind

the Moon. It is a sight that should not be missed.

How much of a given total solar eclipse you can see will depend greatly on where you are located. The closer you are to

the centerline of the path of the Moon’s shadow, the greater the percentage of the Sun will be blocked and the longer the

solar eclipse will last. In order to experience totality, you need to be directly under the Moon’s shadow. This path of totality

is extremely narrow and for the 2017 total solar eclipse is only 75 miles (120km) wide. If you are too far north or south of

the path of totality, you will only see a partial solar eclipse. Even if you are unable to travel to the path of totality, everyone

in the continental United States and most of Canada will be treated to a partial solar eclipse with at least 60% of the Sun

covered by the Moon.

With your EclipSmart telescope, you are ready to be part of history.

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Travel Scope 50

OBSERVING THE SUN

In addition to observing solar eclipses, your scope is capable of seeing other solar phenomena. Here are some

suggestions to get the most out of your solar telescope.

SUNSPOTS

Sunspots are dark spots that appear on the photosphere, or visible “surface” of the Sun. They usually have a dark core,

called the umbra, surrounded by a lighter border, called the penumbra. They form when large disturbances in the Sun’s

magnetic ﬁeld cool portions of the photosphere. Sunspots are relatively cool, being only 6000°F (3300°C) compared

to the normal 10,000°F (5500°C) of the rest of the photosphere. Although these spots appear to be almost black, they

are actually quite bright. If it were possible to remove a sunspot from the Sun and put it in the night sky, it would shine

brighter than the full moon. They only appears to be “dark” when compared to the rest of the photosphere.

Sunspots can be big. Very big. They can range in size from 10 to 100,000 miles (16 to 160,000 km) in diameter. To put

that into perspective, the Earth is only 8,000 miles (12,800 km) in diameter! Compare sunspot sizes to the relative size

of the Earth in the image below in order to better grasp the immense size of the Sun and share that WOW factor with

neighbors, friends, and family.

Sunspots usually appear in pairs but can also appear in very large groups. They can last from a few days to several

weeks and can change their shape, size and number as they slowly rotate across the face of the Sun. It will take about

two weeks for a sunspot group to cross the Sun. Try looking at the Sun every day and draw a picture of what you see.

At the end of the week, compare your drawings and you’ll see how sunspots evolve.

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Travel Scope 50

MERCURY TRANSIT

Mercury transits occur when the planet Mercury passes in between the Sun and Earth allowing observers on Earth to

track Mercury’s dark disk as it crosses the face of the Sun. This is an extremely rare event, occurring only four times

over the next 50 years. On the morning of November 11, 2019. Mercury will transit the face of the sun. For most of North

America, the event will already be underway as the sun rises, but you will still be able to view the transit for a few hours.

Be sure not to miss this event as the next transit of Mercury will not occur for another 13 years in 2032.

LIMB DARKENING

When viewing the Sun’s disk, look for a falloff of brightness as you look from the center of the disk to the edge, or limb.

This is caused by the thick solar corona, or outer atmosphere of the Sun. As you look at the center of the solar disk, you

are looking straight down through the least amount of atmosphere. As you look near the limb, you are looking through a

thicker layer, which dims the amount of light shining through.

10 | ENGLISH

Travel Scope 50

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