14
Next, select the
'Solar System'
menu option and scroll with the arrow
keys to find Jupiter. Select
Jupiter
by pressing the centre key (5).
Once you select Jupiter, your telescope will automatically slew towards
Jupiter. When the telescope reaches Jupiter's position, a loud beeping
noise will let you know that the telescope is done moving. You may
then begin your observation.
350 mm
÷ 20 mm
=
17.5X
350 mm
÷ 10 mm
=
35X
400 mm
÷ 20 mm
=
20X
400 mm
÷ 10 mm
=
40X
Formula for calculating magnification:
Focal length (Telescope) ÷ Focal length (Eyepiece) = Magnification
Examples:
Possible observation targets
The following section details several interesting and easy-to-find
celestial objects you may want to observe through your telescope.
The moon
The moon is Earth's only natural satellite.
Diameter:
3,476 km
Distance:
384,400 km from Earth (average)
The moon has been known to humans since prehistoric 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).
Constellation Orion: The Orion Nebula (M 42)
Right Ascension: 05
h
35
m
(hours : minutes)
Declination:
-05° 22' (Degrees : minutes)
Distance:
1,344 light years from Earth
Though it is more than 1,344 light years from Earth, the Orion Nebula
(M 42) is the brightest diffuse nebula in the sky. It is visible even with
the naked eye and a worthwhile object for telescopes of all types and
sizes. The nebula consists of a gigantic cloud of hydrogen gas with a
diameter of hundreds of light years.
Constellation Lyra: The Ring Nebula (M 57)
Right Ascension: 18
h
53
m
(hours : minutes)
Declination:
+33° 02'
(Degrees : minutes)
Distance:
2,412 light years from Earth
The famous Ring Nebula (M57) in the Lyra constellation is often
viewed as the prototype of a planetary nebula. It is one of the mag-
nificent 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 vis-
ible with larger telescopes), and not a gas structure in the form of a
sphere or an ellipse. If you were to look at the Ring Nebula from the
side, it would look like the Dumbbell Nebula (M 27). When viewed
from Earth, we are looking directly at the pole of the nebula.
Constellation Vulpecula (Little Fox):
The Dumbbell Nebula (M 27)
Right Ascension: 19
h
59
m
(hours : minutes)
Declination:
+22° 43' (Degrees : minutes)
Distance:
1,360 light years from Earth
The Dumbbell Nebula (M 27) was the first planetary nebula ever dis-
covered. On 12 July 1764, Charles Messier discovered this new and
fascinating class of objects. We see this object almost directly from
its equatorial plane. If we could see the Dumbbell Nebula from one of
its poles, we would probably see the shape of a ring, something very
similar to what we know as the Ring Nebula (M 57). In reasonably
good weather, we can see this object well, even with low magnifica-
tion.
Notes on cleaning
Before cleaning the device, disconnect it from the power supply by
removing the plug or batteries.
Clean the eyepieces and lenses only with a soft, lint-free cloth, like a
microfibre cloth. Do not apply excess pressure to the cloth to avoid
scratching the lenses.
Protect the device from dust and moisture. Store it in the supplied bag
or transportation packaging. The batteries should be removed from the
unit if it has not been used for a long time.
EC Declaration of Conformity
Bresser GmbH has issued a 'Declaration of Conformity' in accordance
with applicable guidelines and corresponding standards. This can be
viewed any time upon request.
DISPOSAL
Dispose of the packaging materials properly, according to their type,
such as paper or cardboard. Contact your local waste-disposal service
or environmental authority for information on the proper disposal.
Do not dispose of electronic devices in the household garbage!
As per Directive 2002/96/EC of the European Parliament on
waste electrical and electronic equipment and its adaptation into
German law, used electronic devices must be collected separately and
recycled in an environmentally friendly manner.
Empty, old batteries must be disposed of at battery collection points
by the consumer. You can find out more information about the dis-
posal of devices or batteries produced after 6 January 2006 from your
local waste-disposal service or environmental authority.
In accordance with the regulations concerning batteries and
rechargeable batteries, disposing of them in the normal house-
hold waste is explicitly forbidden. Please make sure to dispose of
your used batteries as required by law — at a local collection point or
in the retail market. Disposal in domestic waste violates the Battery
Directive.
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