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69
Chapter 5 APPLICATION
Drift Alignment in the Southern Hemisphere
Align the mount to the south celestial pole by using the polar alignment scope. It will save you a lot of time in the process of drift alignment.
Adjust the mount with the altitude adjustment bolts. Make appropriate adjustments to the polar axis to eliminate the drift.
South
West
East
North
Inverted View
North side of the sky
Move to
east in
azimuth.
S
W
E
N
S
W
E
N
R.A.axis
(S.C.P)
South
West
East
North
Inverted View
North side of the sky
Move to
east in
azimuth.
S
W
E
N
S
W
E
N
R.A.axis
(S.C.P)
R.A.axis
R.A.axis
East
East
South
South
North
North
S.C.P
S.C.P
Move to low the altitude.
Move to high the altitude.
Diunal motion
Diunal
motion
Telescopes´s
motion
Telescopes´s
motion
East side
of the sky
East side
of the sky
N
W
E
S
N
W
E
S
N
W
E
S
N
W
E
S
1
Align the Mount in the direction of Azimuth
Prepare an eyepiece with cross hairs reticle (illuminated). Choose a bright star near the celestial equator and near the meridian, and put it in the filed
of view of the eyepiece. Turn off the power switch of the mount momentarily while looking into the eyepiece to see which direction the star moves.
Confirm the west and rotate the eyepiece so that one of the cross hairs is parallel to the east-west direction in the field of view.
If the star drifts south (i.e. It moves down apparently due to inverted view), move the mount to east in azimuth.
If the star drifts north (i.e. It moves up apparently due to inverted view), move the mount to west in azimuth.
You may find that the star in the field of view moves slightly in the north-south direction, but ignore it at this stage and continue the adjustments.
Adjust the mount with the azimuth adjustment konbs. Make appropriate adjustments to the polar axis to eliminate the drift.
2
Align the Mount in the direction of Altitude
Choose a bright star in east but not too low, and put it in the filed of view of the eyepiece. Turn off the power switch of the mount momentarily while
looking into the eyepiece to see in which direction the star moves. Confirm the west and rotate the eyepiece so that one of the cross hairs is parallel
to the east-west direction in the field of view.
If the star drifts south (i.e. It moves toward the lower left apparently due to inverted view), move the mount to low in altitude.
If the star drifts north (i.e. It moves toward the upper right apparently due to inverted view), move the mount to high in altitude.