10
GTO Quick Star Drift Method of Polar Alignment Quick Reference Sheet
1.● Rough●align●the●mount
2.● Slew●to●star●near●the●zenith.●This●will●be●the●“Altitude●Star.”
a)● Double●check●correct●mount●orientation.
b)● Line●up●finderscopes●crosshairs●with●direction●buttons
c)● Center●the●star●with●the●direction●buttons
d)● Re-calibrate.
3.● Set●Meridian●Delay:●
**Star●in●west●(RA●value●<●“z”●or●LST●value)●–●advance●
<1W>●●●●
**Star●in●East●(RA●value●>●“z”●or●LST●value)●–●set●back●
<1E>
4.● Select●Altitude●Star●again●and●GoTo.
5.● Make●Altitude●Adjustments.
a)● E-W●Error●=●orthogonality.●●Correct●half●with●E●or●W●
direction●button.
b)● Orthogonality●part●2.●●●Correct●remaining●E-W●error●
with●finderscope●adjustment●screws.
c)● N-S●error●=●altitude.●●●Correct●half●with●altitude●
adjuster.
d)● Altitude●part●2.●●●Correct●remaining●half●of●N-S●error●
with●N●or●S●direction●button.
e)● Recalibrate
f)● Return●Meridian●Delay●to●normal●<0W>.
g)● Select●Altitude●Star●again●and●GoTo.
6.● Make●Azimuth●Adjustments
a)● Choose●second●star●at●least●40●deg.●from●altitude●star●
that●is●away●from●the●pole.
b)● Use●GoTo●to●slew●to●second●star.
c)● Correct●ENTIRE●error●with●Azimuth●Adjuster.
d)● Skip●Re-calibrate.
e)● Select●and●slew●back●to●Altitude●Star.
f)● Center,●if●needed●with●direction●buttons●and●Re-cali-
brate.
g)● Repeat●process●until●adequately●aligned.
