Vixen SX Polar Axis Scope User Manual

INSTRUCTIONS FOR VIXEN SX POLAR AXIS SCOPE
FINDERSCOPE 6X30mm (8 Deg. Real FOV)
POLAR ALIGN METHOD
POLAR ALIGNMENT RETICLES
ACCURACY OF ALIGNMENT
ILLUMINATOR
WATER LEVER
ABOUT POLAR AXIS SCOPES
Polar Axis scopes are used for precisely pointing the equatorial mount at the celestial pole and this process is called “Polar Alignment”. When taking astrophotography of nebulae or star clusters, you will have to exactly set the telescopes’s axis of rotation to accord with the Earth’s axis of rotation. . Caution: If Polar Alignment is not done properly, stars will rotate around an axis in the center of the image or stars will trail off and you will not be able to get tight star images. Polar alignment is not possible in both the northern and southern latitudes of 70 degrees. Check you latitude and longitude before starting polar alignmnt.
Date and Time graduation circles with meridian offset scale
Polaris alignment scale in the northern hemisphere and Octantis’ four stars align­ment in the southern hemisphere
Less than 3 arc minutes Red LED light, pre-installed Built in water level
VIXEN POLAR AXIS SCOPE COMPONENTS
INSTALLING THE VIXEN SX POLAR AXIS SCOPE
Remove the plastic Polar Axis cap by tuning it coun­terclockwise.
Attach the SX Polar Axis scope to the Polar axis of the mount by tunring it clockwise. *Make sure the Polar Axis scope is inserted straight to avoid damaging threads.
After the Polar Axis scope is installed, turn the date graduation circle so that the Allen wrench insertion opening will overlap the hole under­neath
Insert the supplied Allen wrench into the hole to use as a gripping aid.
Secure the SX Polar Axis scope by gripping the Allen Wrench and turning it clockwise
Turn the time graduation circle by holding the water level on both sides so that the bubble is in the middle of the water level.
Check the difference between the standard time meridian of your region and your observing site on a map of the area. If the observing site is in the east of standard time meridian, rotate the time meridian indicator in the direction as indicated E on the meridian offset scale. If the observing site is in the west of the standard time meridian, rotate the time meridian indicator in the direction indicated W on the meridian offset scale. You can more the time meridian indicator by rotating the eyepiece of the Polar Axis Scope while youhold the date graduation circle with your finger as show in the image above.
USING THE POLAR AXIS SCOPE IN THE SOUTHERN HEMISPHERE
USING THE POLAR AXIS SCOPE IN THE NORTHERN HEMISPHERE
Set up your telescope on flat hard ground where you can see Polaris in the sky. Point the Polar Axis of the mount in the direction of North as shown in the figure below, using a compass if available. Adjust the tripod legs so that it is as level as possible.
Take off the Decl. cap and Polar Axis cap. These caps can be re­moved easily by twist­ing counter clockwise.
Adjust the mount in altitude until the latitude indicator (the edge in front of the altitude scale) points to you latitude. (Refer to the manual for the Sphinx equatorial mount) The mount is set at an altitude around 35 deg at the Vixen factory. Be sure to adjust the mount in altitude when your observing site is different from the initial setting. Release the altitude adjustment clamp and turn the knob as shown in the figures to the right. The mount can be adjusted within +- 15 deg at 35 deg.
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