Bushnell VOYAGER 78-9540 User Manual
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Venus--just like the moon, Venus changed phases from month to month. Some views of brilliant Venus appear
as if you were looking at a distant crescent moon.
Nebulae--The Great Orion Nebula is a very well known night sky object. This and many others are brought to
you by this telescope.
Star Clusters--View millions of stars densely packed in a cluster that resembles a ball.
Galaxies--One of the greatest and most interesting galaxies is our neighbor the Andromeda Galaxy. Enjoy this
and many others. Much, much, more!
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ANSWERS TO COMMONLY ASKED QUESTIONS
1. The image I see in the telescope is upside down and
reversed from right to left ?
•
An upside-down and reversed image is a common
characteristic of most astronomical telescopes. Since
telescopes are used for astronomical viewing
orientation is not important. The image in the
finderscope will also be reversed.
2. How do I determine the power my telescope ?
•
The power of your telescope can be determine by
dividing the focal length of the objective lens by the
focal length of the eyepiece. The eyepiece focal length
is the number printed on the eyepiece. (For example:
1000
÷
25 = 40X)
3. Where do I find the Telescope Focal Length
•
The telescope focal length is the same focal length as
the objective focal length. For this telescope it is
540mm. Telescope focal lengths range from 540mm
to 900mm on Bausch & Lomb and Bushnell
telescopes.
4. What can I see with my telescope ?
•
Telescopes with power ranging from 25X to 50X can
be used to view Star Clusters and Nebulae. 90X to 120X
telescope can view galaxies. Most planets can be seen at
any magnification.
5. What do the numbers on the eyepiece mean ?
•
The numbers on the eyepiece represents the “focal
Length” of the eyepiece.
TROUBLESHOOTING GUIDE
If after you have set-up your new telescope you are unable to see any objects, use this Quick
Reference guide to help you to understand the cause of the problem and quickly determine a remedy
1. I’ve completed the set-up yet I cannot see anything
•
Check to see if objective lens cover has been
removed.
•
Try to view an object that is 200 or more yards away.
•
If there is more than one eyepiece included with the
telescope, use the lowest power (highest number)
eyepiece to begin viewing.
•
Use the
Rack & Pinion Focusing Mechanism (3)
to
bring the object you are trying to view into focus