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29

the Ring Nebula from the side, it would look 
like the Dumbbell Nebula (M27). With this ob-
ject, 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 (Figure 22)
Right ascension: 19:59.6 (Hours: Minutes) 
Declination: -+22:43 (Angle: Minutes)
Distance:  1.250 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 equato-
rial plane. If you could see the Dumbbell Ne-
bula 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.

f=20 mm

f=12 mm

f=4 mm

The Moon

Orion Nebula (M 42)

Ring Nebula in Lyra 

constellation (M 57)

Dumbbell Nebula in 

the Vulpecula (Fox) 

constellation (M 27)

GB

 

2!

 

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Содержание 70/700 NG

Страница 1: ...Telescope 70 700 NG Art No 88 45000 Bedienungsanleitung Operating Instructions Mode d emploi Handleiding Istruzioni per l uso Instrucciones de uso Manual de utiliza o DE GB FR NL IT ES PT...

Страница 2: ...evice together with your child or children and never allow any child to use any of our optical products unsupervised We hope all users and their parents will enjoy our products Your Bresser team Dear...

Страница 3: ...repair if nee ded Do not subject the device to temperatures ex ceeding 60 C TIPS on cleaning Clean the lens objective and eye piece only with the cloth supplied or some other soft lint free cloth e g...

Страница 4: ...screws only as much as you can by hand do not over tighten the screws 3 Tripod Take the three legged tripod and set it vertically on the floor with the feet pointing downwards Now take two of the tri...

Страница 5: ...pod leg brace downwards a little 5 Tube In order to mount the telescope tube 1 Fig 1 loosen the locking screw on the tube clamp 8 Fig 6 and open up the clamp Set the tube in the middle of the holder...

Страница 6: ...e re produced image will be upright and its sides will not be reversed as above Now turn one of the two clamp screws right left of the fin derscope while looking continuously through the finder Contin...

Страница 7: ...ertically 9 Flexible shafts In order to facilitate the exact fine adjustment of the declination and right ascension shafts the flexible shafts have been placed on the holders of both these shafts in t...

Страница 8: ...ens above com There under An onymous user Select you can choose your country the relevant information will then come up 5 Final orientation Turn the declination shaft 8 as well as the telescope holder...

Страница 9: ...ing with the tube in the proposed direction and retighten the clamps The fine adjustment is then performed with the flexible shafts 14 15 Figures 1 7 Finder Your telescope is now roughly aligned and s...

Страница 10: ...e 1 Then set the inverting lens 20 Fi gure 2 straight into the eyepiece holder and retighten the clamping screws with your hand Then place the eyepiece e g f 20 mm into the opening of the inverting le...

Страница 11: ...with just the zenith mirror and an eyepiece For terrestrial observations and for viewing nature you may use the inverting lens with an eyepiece Problem Solution No image Remove lens cap from lens ope...

Страница 12: ...2 in the Orion constellation Figure 20 Right ascension 05 32 9 Hours Minutes Declination 05 25 Degrees Minutes Distance 1 500 light years With a distance of about 1500 light years the Orion Nebula Mes...

Страница 13: ...ula ever discovered On July 12 1764 Charles Messier discovered this new and fascinating class of objects We see this object almost directly from its equato rial plane If you could see the Dumbbell Ne...

Страница 14: ...epiece Magnification You see In a telescope the magnification de pends on both the focal width of the telescope tube and the focal width of the eyepiece From this formula we see that if you use an eye...

Страница 15: ...GB...

Страница 16: ...rs and technical changes reserved Sous r serve d erreurs et de modifications techniques Vergissingen en technische veranderingen voorbehouden Con riserva di errori e modifiche tecniche Queda reservada...

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