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Ring Nebula in Lyra constellation (M 57)
M 57 in the Lyra constellation
Distance: 2,412 light years from Earth
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 magnifi cent 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 ellipse.
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
Distance: 1,360 light years from Earth
The Dumbbell Nebula (M 27) in the Fox constellation was the fi rst planetary nebula ever discovered. 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 you could see the Dumbbell Nebula from one of its poles, it would probably reveal that
it's in 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 at small magnifi cations.
Warranty and warranty term extension
The warranty term is two years from the date of purchase. Please keep your proof of purchase.
Register at www.bresser.de/warranty and fi ll out a brief questionnaire to get your warranty term extended to fi ve
years. Registration must be completed within three months of purchase (date of receipt) to validate the warranty. If
you register thereafter, the warranty term will not be extended. If you have problems with your device, please con-
tact our customer service fi rst. Do not send any products without consulting us fi rst by telephone. Many problems
with your device can be solved over the phone. If the problem cannot be resolved by phone, we will take care of
transporting your device to be repaired. If the problem occurred after the warranty ended or it is not covered by our
warranty terms, you will receive an estimate of repair costs, free of charge.
Service Hotline: +49 (0) 2872 - 80 74-210
Important for any returns:
Please make sure to return the device carefully packed in the original packaging in order to prevent damage during
transport. Also, please enclose your receipt for the device (or a copy) and a description of the defect. This warranty
does not imply any restriction of your statutory rights.
Your dealer: ........................................................
Description of problem: ..........................................................................................................................
...........................................................................................................................................................
Name: ...............................................................
Street: ...............................................................
City/Postcode: ....................................................
10
Art. No.: .............................................................
Telephone: .........................................................
Date of purchase: ................................................
Signature: ..........................................................

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National geographic 90-15000

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