Celestron NexStar 5i Guide de l'utilisateur télécharger pdf (Page 13)

• To provide GoTo and tracking of nearly the same performance as one of the full alignment routines,

you may later use the NexStar Re-Alignment feature to replace the "Unassigned" star with a real star.

Additional Details

• One Star Align will only list objects that fall within the current Filter Limits and 15 - 70 degrees

altitude (whichever is more restrictive) as available for alignment. For example, if your Filter Limits

are 20 and 90 degrees, only the objects between 20 and 70 degrees will be listed.

• A sub-set of the full alignment star list is available during One Star Align - only the brightest stars are

available. Refer to the section Objects in the NexStar Hand Control for details.

• As with all the new NexStar alignment methods, One Star Align does not care where the optical tube

is pointed at the beginning of the alignment.

• To get better tracking be sure to level the tripod before you start.

• If you do not have a GPS-equipped telescope, be accurate to within a couple of minutes when

entering the time. Also, either select a city within 50 miles or enter your longitude and latitude to

within a degree or two.

Indoor Alignment

With hand control version 4, Quick Align, GPS Align and Auto Align are no longer available. Previously,

if a person wanted to align their NexStar indoors or during the daytime, one of these three alignment

methods was employed. With hand control version 4, a daytime alignment (outdoors) is best

accomplished with the new Solar System Align method. If you want to perform tests indoors, One Star

Align can be used as follows.

Northern Hemisphere

Point the telescope in the general direction of Polaris (the North Star). Remember that Polaris is straight

north and is the same number of degrees above the horizon as your latitude on Earth. In other words, if

you live at 45 degrees north latitude, you would point the scope north and up at a 45 degree angle. Start a

One Star Alignment and use Polaris as the alignment star, pressing ENTER and ALIGN to accept the

current position of the scope. The scope is now aligned and tracking.

Southern Hemisphere

In the Southern Hemisphere, you will need to use a planetarium program (such as Planetarium for Palm,

Cartes du Ciel, TheSky, etc.) to look up the current altitude and azimuth of one of the bright alignment

stars. To see which stars are available, power up the scope and start a One Star Align. Scroll through the

available stars and select one. Find that star in your planetarium program and note the location in the sky.

Then, point the telescope to your best estimation of that location in the sky. Press ENTER and ALIGN to

accept the current position of the scope. The scope is now aligned and tracking.

All-Star Polar Alignment - version 4.17 or later

(not available on SLT, GT or StarSeeker models)

All-Star Polar Alignment is similar to Wedge Align, which it replaces, though a couple of differences

exist. All-Star Polar Alignment allows the use of any star while Wedge Align was restricted to Polaris or

Sigma Octanis. Also, after using All-Star Polar Alignment, you are not required to power off and do

another EQ alignment as is required with Wedge Align.

Procedure

• Complete an EQ alignment.

• GoTo a star on the Named Star (LIST button).

• Press ALIGN, use the Up and Down buttons (6 and 9 on the keypad) to scroll to Polar Align and

press ENTER.

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Celestron NexStar 5i Guide de l'utilisateur Page 13

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