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PART III - Appendix
1. Possible observation objects
Below we have selected and explained some very interesting celestial bodies and
star clusters. In the accompanying illustrations at the end of the manual you can
see how you will see the objects through your telescope with the supplied eyepi-
eces in good viewing conditions:
Moon (Fig 30)
The moon is the only natural satellite of the earth
Orbit:
approx. 384,400 km from the earth
Diametre: 3.476 km
Distance: 384.401 km
The moon has been known since prehistoric times. It is the second brightest
object in the sky after the sun. As the moon orbits the earth once a month, the
angle between the earth, the moon and the sun is constantly changing; you can
see this in the cycles of the moon's phases. The time between two consecutive
new moon phases is about 29.5 days (709 hours).
Constellation ORION / M42 (Fig 31)
Right Ascension (R.A): 05:32.9 (hours : minutes)
Declination (DEC):
05:25 (degrees : minutes)
Distance: 1.500 million light years
At a distance of about 1600 light-years, the Orion Nebula (M42) is the brightest
diffuse nebula in the sky - visible to the naked eye, and a rewarding object for
telescopes of all sizes, from the smallest binoculars to the largest Earth-based
observatories and the Hubble Space Telescope.
It is the main part of a much larger cloud of hydrogen gas and dust, extending
at more than 10 degrees over well over half of the constellation of Orion. The
extent of this enormous cloud is several hundred light years.
Constellation LEIER / M57 (Fig 32)
Right ascension:
18:51.7 (hours : minutes)
Declination (DEC):
32:58 (degrees : minutes)
Distance: 4.100 million light years
The famous Ring Nebula M57 in the constellation Lyra is often considered the pro-
totype of a planetary nebula; it is one of the splendors of the northern hemisphere
summer sky. Recent studies have shown that it is most likely a ring (torus) of brightly
glowing matter surrounding the central star (visible only with larger telescopes),
rather than a spherical or ellipsoidal gas structure. If the Ring Nebula were viewed
from the side plane, it would resemble the Dumbell Nebula M27. We are looking
right at the pole of the nebula for this object.
Constellation Vixen / M27 (Fig 33)
Right Ascension (R.A): 19:59.6 (hours : minutes)
Declination (DEC):
22:43 (degrees : minutes)
Distance: 1.250 million light years
The Dumbbell Nebula M27 or Dumbbell Nebula in the Vixen was the first pla-
netary nebula ever discovered. On July 12, 1764, Charles Messier discovered
this new and fascinating class of objects. We see this object almost exactly from
its equatorial plane. If the Dumbell Nebula were seen from one of the poles, it
would probably have the shape of a ring and resemble the sight we know from
the Ring Nebula M57. This object can already be seen well in halfway good wea-
ther conditions at low magnifications.
2. Troubleshooting
Mistakes:
Solution:
No image
Remove dust cap from tube opening
Select eyepiece with lower magnification (= high-
er focal length)
Blurred picture
Focusing on the focus wheel
No focusing possible
Wait for temperature equalization (approx. 30
minutes)
Bad picture
Never watch through a pane of glass
Observation object in the
Adjust the viewfinder (see Part I - 8.)
viewfinder, but not visible
through the eyepiece
Difficult tracking of the
Balance telescope and counterweight (sh. Part
axes via shafts
II - 3.)
Despite upright prism only
Align upright prism vertically in the eyepiece
"crooked" image
tube
Disposal
Dispose of the packaging materials by type. Contact your local waste-dispo-
sal service or environmental authority for information on the proper dispo-
sal.
Observe the current legal regulations when disposing of the device!
Information on proper disposal can be obtained from municipal waste dis-
posal service providers or the Environmental Agency.
Do not dispose of electronic devices in the household waste!
According to the European Directive 2002/96/EC on Waste Electrical and
Electronic Equipment and its transposition into national law, used electrical
equipment must be collected separately and recycled in an environmentally sound
manner.
Batteries and rechargeable batteries must not be disposed of with household
waste. You are legally obliged to return used batteries and accumulators and
can return the batteries after use either in our sales outlet or in the immediate
vicinity (e.g. in the trade or in municipal collection points) free of charge.
Batteries and accumulators are marked with a crossed-out dustbin and the che-
mical symbol of the pollutant, "Cd" stands for cadmium, "Hg" stands for mercury
and "Pb" stands for lead.
Warranty & Service
The regular warranty period is 5 years and begins on the day of purchase. For
complete warranty terms and services, please visit www.bresser.de/warran-
ty_terms.
In the event of a warranty claim, please first contact the service team responsible
for your country, preferably by e-mail or using the contact form on the website.
Here you can be helped quickly in most cases. The corresponding contact informa-
tion can be found under "Service" in this manual.
IMPORTANT!
Do not send in devices - even in the event of damage - without first consul-
ting the service department. Unfortunately, unsolicited devices cannot be
accepted and processed.
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