Edu Science ASTRO GAZER User manual

CAUTION:
Never attempt observing the sun with this telescope! Especially keep in mind while the telescope is used by children!
Observing the sun even for a short time may cause blindness!
Packing material (plastic bags, etc.) has to be kept out of reach of children!
T700HD
ASTRO GAZER HD TELESCOPE
#5F5F60C
RISK to your child!
Never look through this device directly at or near the
sun. There is a risk of
BLINDING YOURSELF!
Children should only use this device under adult
supervision. Keep packaging materials (plastic bags,
etc.) away from children. There is a risk of
SUFFOCATION!
Fire/Burning RISK!
Never subject the device - especially the lenses - to
direct sunlight. Light ray concentration can cause
fires and/or burns.
RISK of material damage!
Never take the device apart. Please consult your
Customer Service if there are any defects. The dealer
will contact our service center and send the device in
for repair if needed.
Do not subject the device to temperatures exceeding
140ºF (60º).
TIPS on cleaning
Clean the lens (objective and eyepiece) only with a
soft lint-free cloth (e.g. micro-fibre). Do not use
excessive pressure - this may scratch the lens.
Dampen the cleaning cloth with a lens cleaning fluid
and use it on very dirty lenses.
Protect the device against dirt and dust. Leave it to
dry properly after use at room temperature. Then put
the dust caps on and store the device in the
packaging provided.
RESPECT Privacy!
This device is meant for private use. Respect others’
privacy – do not use the device to look into other
people‘s homes, for example.
DISPOSAL
Dispose of the packaging materials as legally
required. Consult the local authority on the matter if
necessary.
T700HD
English

23
Fig 1
Fig 4
Fig 2
Fig 5
Fig 3
Fig 6
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8
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2
1
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8
8
8
5
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Parts listing
Please check while unpacking, if all parts are
complete:
1 Objective lens
2 Tripod with accessory tray
3 Telescope mounting arm with clamp
4 Telescope tube with dew shield
5 Red Dot Finderscope
6
Plossol
Eyepiece 26mm
7 Huygens Eyepiece 12.5mm
8 Diagonal mirror
Setting up
It is recommended to do the first set-up during the
daytime to familiarise yourself with steps and
components of setting up your telescope. By doing
this exercise it will make it easier to set up the
telescope even in low light.
1. Open the tripod legs until the tripod spreaders
are
level. Afterwards, put the accessory tray in place and
lock it by turning by 60°
Fig 2
. Now you can set the
tripod height by adjusting the single legs with their
locking clamps
Fig 1
.
2. Insert the mounting arm from above into the
mount hole at the tripod head and lock it with the
black screw
Fig 3
.
3. Set the telescope tube with the threaded bolts
from
the left into the clamp so that the bolts fit into the
clamp’s holes. Then screw the black locking nuts and
tighten them to a firm feel
Fig 4
.
4. Finally, put the Red Dot Finderscope back in
its
holder
Fig 5
.
5. Slide diagonal mirror into Focuser (turn silver
screws
until snug) and insert the 26mm eyepeice in
to the diagonal (turn silver screws until snug).
Aligning the Red Dot Finderscope
Your telescope is designed for terrestrial and
astro
nomical observations. Please keep in mind that
heat turbulences in the air are also magnified. In warm
conditions, it can be useful to limit observations to
medium magnifications.
First, remove the dust cover from the objective
lens.
First, remove the dust cover from the objective
lens.
First, remove the dust cover from the objective
Please make sure to remove plastic insulator from
battery
Fig 6
.
Insert the 26mm Eyepiece into the diagonal, you
may now adjust the focus with the draw tube’s
wheel. The Red Dot Finderscope is activated by
sliding the switch on its right side; there are two
intensities available. Before the first observation,
the Red Dot Finderscope has to be aligned to the
telescope. For this, point at a striking target (e.g.
telephone pole) with the telescope’s eyepiece.
Now, without moving the telescope, switch on the
Red Dot Finderscope and adjust the red dot with
the 2 adjustment screws (left and right - up and
down) until it fits to the eyepiece’s view. Now the
Red Dot Finderscope is aligned and ready to point
for the telescope.
Hint:
Do not forget to switch off the Red Dot
Finderscope after
use!
Cleaning / Maintenance
Your telescope should, like every optical
instrument, be treated with care and stored dry.
Doing so will maintain its optical performance for
many years. After using, the dust cover should
be closed after dew has dried off. The lenses can
be cleaned with a soft cloth available from photo
stores. Do not use harsh cleaning fluids to clean
the optics.
The Red Dot Finderscope is powered by a battery
type CR-2032 (3V); if a replacement is necessary,
it is drawn out by spreading the holding spring
down. Please keep in mind that a new battery has
to be placed with the positive (+) side downwards!
Technical data
Aperture: 70mm
Focal length: 700mm
Focal ratio: f/10
Magnifications
w/ eyepiece 26mm: 26.9x
w/ eyepiece 12.5mm: 56x
Possible objects for observation:
We have compiled and explained a number of
very
interesting celestial bodies and star clusters
for you but we suggest that you start practicing
during the day focusing on terrestrial objects
such as birds or trees at varying distances from
you. On the accompanying images at the end of
the instruction manual, you can see how objects
will appear in good viewing conditions through
your telescope at varying powers.
Warning:
Never use a telescope to look at the sun! Looking at
or near the sun will cause instant and irreversible
damage to your eye. Eye damage is often painless, so
there is no warning to the observer that damage has
occurred until it is too late. Do not point the telescope
or its viewfinder at or near the sun. Do not look
through the telescope or its viewfinder as it is
moving. Children should always have adult
supervision while observing.

45
Terrestrial Views
Please note the example picture of Mount Rushmore.
Start with the 26mm eyepiece and focus until clear.
After mastering the focus with the 26mm change the
12.5mm eyepiece and practice focusing and scanning
until images become clear in the eyepiece. We have
included some additional examples that are possible
with your telescope such as a bird and a green on a
golf course.
DO NOT POINT YOUR TELESCOPE
DIRECTLY AT THE SUN AS IT MAY CAUSE BLINDNESS.
The Moon
The moon is the Earth’s only natural satellite.
Diameter: 3.476 km (2.2 miles)
Distance: approx. 384,401 km (216,486 miles)
The moon has been known to humans since
prehis
toric times. It is the second brightest object in
the sky (after the sun). Because the moon circles the
Earth once per month, the angle between the Earth,
the moon and the sun is constantly changing; one
sees this change in the phases of the moon. The time
between two consecutive new moon phases is about
29.5 days (709 hours).
Orion Nebula (M 42)
M 42 in the Orion constellation
Right ascension: 05:32.9 (Hours: Minutes)
Declination:
-05º�25´
(Degrees: Minutes)
Distance: 1.500 light years
With a distance of about 1.500 light years, the Orion
Nebula (Messier 42, abbreviation: M 42) is the
brightest diffuse Nebula in the sky – visible with the
naked eye, and a rewarding object for telescopes in
all sizes, from the smallest field glass to the largest
earthbound observatories and the Hubble Space
Telescope. When talking about Orion, we‘re actually
referring to the main part of a much larger cloud of
hydrogen gas and dust, which spreads out with over
10 degrees over the half of the Orion constellation.
The expanse of this enormous cloud stretches several
hundred light years.
Ring Nebula in Lyra constellation (M 57)
M 57 in the Lyra constellation
Right ascension: 18:53 (Hours: Minutes)
Declination: +33º 01´ (Degrees: Minutes)
Distance: 2.3 light years
The famous Ring Nebula M 57 in the constellation
of Lyra is often viewed as the prototype of a
planetary Nebula; it is one of the magnificent
features of the Northern Hemisphere’s summer
sky. Recent studies have shown that it is probably
comprised of a ring (torus) of brightly shining
material that surrounds the central star (only
visible with larger telescopes), and not of a gas
structure in the form of a sphere or an ellipsis. If
you were to look at the Ring Nebula from the side,
it would look like the Dumbbell Nebula (M27).
With this object, we’re looking directly at the pole
of the Nebula.
Dumbbell Nebula in the Vulpecula (Fox)
constellation (M 27)
M 27 in the Fox constellation
Right ascension: 19:59.6 (Hours: Minutes)
Declination:
+22º�43´
(Degrees: Minutes)
Distance: 1.360 light years
The Dumbbell Nebula (M 27) in Fox was the first
planetary nebula ever discovered. On July 12,
1764, Charles Messier discovered this new and
fascinating class of objects. We see this object
almost directly from its equatorial plane. If you
could see the Dumbbell Nebula from one of the
poles, it would probably reveal the shape of a
ring, and we would see something very similar to
what we know from the Ring Nebula (M 57). In
reasonably good weather, we can see this object
well even with small magnifications.
Terrestrial Images The Moon
Orion Nebula (M 42)
Ring Nebula in Lyra
constellation (M 57)
Dumbbell Nebula in the
Vulpecula (Fox)
constellation (M 27)
f=26mm
f=26mm
f=12.5mm
f=12.5mm

45
Telescope ABC’s
What do the following terms mean?
Diagonal:
A mirror that deflects the ray of light 90 degrees. With
a horizontal telescope tube, this device deflects the
light upwards so that you can comfortably observe by
looking downwards into the eyepiece. The image in a
diagonal mirror appears upright, but rotated around
its vertical axis (mirror image).
Focal Length:
Everything that magnifies an object via an optic (lens)
has a certain focal length (FL). The FL is the length of
the path the light travels from the surface of the lens
to its focal point. The focal point is also referred to as
the focus. In focus, the image is clear. In the case of
a telescope, the FL of the telescope tube and the
eyepieces are combined.
Lens:
The lens turns the light which falls on it around in
such a way so that the light gives a clear image in
the focal point after it has traveled a certain distance
(focal length).
Eyepiece:
An eyepiece is a system made for your eye and
com
prised of one or more lenses. In an eyepiece, the
clear image that is generated in the focal point of a
lens is captured and magnified still more.
Thereisasimpleformulafor calculating themagnification:
Focal length of the telescope tube / Focal length of the
eyepiece = Magnification
In a telescope, the magnification depends on both the
focal length of the telescope tube and the focal length
of the eyepiece.
Magnification:
The magnification corresponds to the difference
between observation with the naked eye and
observation through a magnification apparatus (e.g. a
telescope). In this scheme, observation with the eye
is considered “single”, or 1x magnification.
Accordingly, if a telescope has a magnification of 30x,
then an object viewed through the telescope will
appear 30 times larger than it would with the naked
eye. See also “Eyepiece.“
Troubleshooting:
Problem:
No picture
Blurred picture
No focus possible
Bad picture
Viewing object visible
in the finder, but not
through the telescope
Advice:
Remove dust protection
cap and sun-shield from
the objective opening.
Adjust focus using focus
ring
Wait for temperature to
balance out
Never observe through a
glass surface
Adjust finder
DISPOSAL
Dispose of the packaging materials
properly, according to their type (paper,
cardboard, etc).
Contact your local waste disposal service
or environmental authority for information
on the proper disposal.
Please take the current legal regulations
into account when disposing of your
device. You can get more information
on the proper disposal from your local
waste disposal service or environmental
authority.
Warning- The lens contains lead that may be
harmful. Wash hands after touching.
Product Manual, Planisphere &
Astro Software Visit:
www.exploreone.com/pages/product-manuals
Astro Software CD

42
#5F5F60C
Contents and colors may vary.
Le contenu et les couleurs peuvent varier.
El contenido y los colores pueden variar.
Contenuti e colori possono variare.
Inhalte und Farben können variieren.
Zawartosc i kolory moga sie róznic.
Conteúdo e cores podem variar.
Inhoud en kleuren kunnen variëren.
Do not mix old and new batteries. Do not mix
alkaline, standard (carbon-zinc), or
rechargeable batteries.
Ne mélangez pas les piles neuves et usées. Ne
pas mélanger des piles alcalines, standard (au
carbone-zinc) piles ou rechargeables.
No mezcle pilas nuevas con pilas usadas. No
mezcle pilas alcalinas, estándar (carbone-zinc)
ni recargables.
Non mischiare batterie vecchie e nuove. Non
mischiare batterie alcaline, standard
(carbonio-zinco), o ricaricabili.
Verwenden Sie nicht gleichzeitig alte und neue
Batterien. Mischen Sie keine alkalischen,
Standard- (Carbonzink) oder Akkus.
Nie mieszaj starych i nowych baterii. Nie nalezy
mieszac baterii alkalicznych, standardowych
(cynkowo-weglowych) lub akumulatorków.
Não misture pilhas velhas e novas. Não misture
pilhas alcalinas, padrão (carbono-zinco), ou
pilhas recarregáveis.
Gebruik geen oude en nieuwe batterijen door
elkaar. Gebruik geen alkaline, standaard
(koolstof-zink), of oplaadbare batterijen.
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