Celestron NexStar 8i Adendum - Halaman 4
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Remember the following alignment guidelines to make using SkyAlign as simple and accurate as possible.
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Be sure to level the tripod before you begin alignment. The time/site information along with a level tripod
will help the telescope better predict the available bright stars and planets that are above the horizon.
•
Remember to select alignment stars that are as far apart in the sky as possible. For best results make sure that
the third alignment star does not lie in a straight line between the first two stars. This may result in a failed
alignment.
•
Don't worry about confusing planets for stars when selecting alignment objects. SkyAlign works with the
four brightest planets (Venus, Jupiter, Saturn and Mars) as well as the Moon. In addition to the planets, the
hand control has over 80 bright alignment stars to choose from (down to 2.5 magnitude).
•
Rarely SkyAlign will not be able to determine what three alignment objects were centered. This sometime
happens when a bright planet or the Moon passes near o
best to try to avoid aligning to either object if possible.
•
Be sure to center the objects with the same final movements as the direction of the GoTo Approach. For
example, if the scope normally finishes a GoTo with the front of the scope moving right and up, you should
center all three alignment objects in the eyepiece using the right and up arrow buttons (the up/down arrows
reverse at slew rates of 6 or lower). Approaching the star from this direction when looking through the
eyepiece w
ill eliminate much of the backlash between the gears and assure the most accurate alignment
possible
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One-Star Align requires you to input all the same information as you would for the Two-Star Align procedure (see
owner's manual). However, instead of slewing to two alignment stars for centering and alignment, the NexStar uses
only one star to model the sky based on the information given. This will allow you to roughly slew to the coordinates
of bright objects like the moon and planets and gives the NexStar the information needed to track objects in altazimuth
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n any part of the sky. One-Star Align is no
track objects accurately for
T
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se One-Star Align:
1.
Select One-Star Align from the alignment options.
2.
Press ENTER to accept the time/site information displayed on the display, or press UNDO to enter new
information.
3.
The SELECT STAR 1 message will appear in the top row of the display. Use the Up and Down scroll keys
(10) to select the star you wish to use for the first alignment star. Press ENTER.
4.
NexStar then asks you to center in the eyepiece the alignment star you selected. Use the direction arrow
buttons to slew the telescope to the alignment star an
ENTER when centered.
5.
Then, center the star in the eyepiece and press ALIGN.
6.
Once in position
Successful.
Note: Once a On
e-Star Align
telescope's pointing a
ccuracy.
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Solar System Align is designed to provide excellent tracking and GoTo performance by using solar system objects
(Sun, Moon and planets) to align the telescope with the sky. Solar System Align is a great w
fo
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daytime viewing as well as a quick way to align the telescope for night time observing.
N
ever look directly at the sun with the naked eye or
Permanent and irreversible eye damage may result.
1.
Select Solar System Align from the alignment options.
2.
Press ENTER
information.
Tips for Using SkyAlign
t meant to be used to accurately locate small or faint deep-sky objects or to
photography.
, the NexStar will model the sky based on this information and display Align
ment has been done, you can use the Re-alignment feature (later in this section ) to improve your
to accept the time/site information displayed on the display, or press UNDO to enter new
ne of the brighter stars. In situations like these it is
d carefully center the star in the finderscope. Press
with a telescope (unless you have the proper solar filter).
4
ay to align your telescope