APPENDIX
Using the Polarie Polar Axis Scope in the Northern Hemisphere
Example: If your location is Tokyo, which has a longitude of 139
°
E,
you need to offset the standard time meridian indicator by 4
°
in the
direction of E after you set to 0 degree on the meridian offset scale.
Point the Polarie in the direction
of north using its polar sight
hole.
Look through the polar axis
scope and turn the eyepiece
diopter adjustment ring so that
the reticle can be seen clearly.
Check the difference between
the standard time meridian of
your region and your observing
site before you set up the
Polarie.
If the observing site is 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 west of standard time meridian, rotate the
time meridian indicator in the direction as indicated W on the
meridian offset scale.
1
2
3
4
Match the date graduation circle
with your observing time by
turning the eyepiece. You can
move the time meridian indicator
by rotating the eyepiece while you
hold the date graduation circle.
*The time and date graduation
circles read 21h 40m on
December 20th in the figure.
Rotate the diopter
adjustment ring of
the eyepiece
Rim of polar axis
scope
Hold the non knurled part of the eyepiece
Rim of polar axis
scope
Hold the non knurled part of the eyepiece
Hold the non knurled
part of the eyepiece
Look through
Rotate the diopter
adjustment ring of
the eyepiece
Look through
Rotate the date
graduation circle
Hold the non knurled part with fingers
Hold the non knurled
part of the eyepiece
Hold the non knurled part with fingers
Rotate the date
graduation circle
No difference in longitude from
the standard time meridian
Difference by 4 degrees from
the standard time meridian
December
20th
21h40m
24
