11
GLOSSARY (Fig.h-1)
Date Scale Indicator
This indicator is used as a reference
point when using the Date Scale.
Date Scale
The circular scale surrounding the
polar scope eyepiece. On the outer
part of the scale you will see months
from 1 (January) to 12 (December)
with divisions in between them. The
longer divisions mark 10-day
increments and the short ones 2-day
increments. The number of the
month appears below the 15th day
of that month.
Longitude Scale
The small scale that appears below
the Date Scale and is labeled E 20
10 0 10 20 W. Since the Date and
Longitude scales are on the same
ring, This ring is sometimes referred
to as the Date/Longitude scale.
Longitude Index Marker
A small line on the black plastic ring
that is next to the Date/Longitude
Ring.
Index Marker Ring
The small black ring with the Index
marker on it.
RA Setting Circle
The scale showing hours from 0 to
23. On the HEQ5 it is directly above
the Date/Longitude Scale. On the
EQ6 it is opposite the end where the
polar scope eyepiece is located. If
you live in the Northern Hemisphere
you will be using the upper scale on
the RA Setting Circle. The lower
scale is for use in the Southern
Hemisphere.
RA Setting Indicator
On the HEQ5 the Date Scale
Indicator also acts as the RA Setting
indicator. On the EQ6, it is the small
triangular indicator next to the RA
setting circle.
EQ6
Date Scale
Indicator
Longitude Index
Marker
Date scale (upper)
Longitude Scale
(lower)
Index Marker
Ring
HEQ5
Setscrew
4
20
1
0
E
W
20
20
10
10
0
12
0
23
23
1
2
1
22
2
21
3
4
Longitude Index
Marker
Index Marker
Ring
RA Setting
Circle
Date scale (upper)
Longitude Scale
(lower)
Date Scale and RA
Setting Indicator
RA Setting Indicator
First, remove the caps from the upper and lower ends of the RA axis so you can look into the polar
scope (Fig.h). Release the counterweight shaft and rotate the mount in declination axis so that the
hole in the shaft is in front of the polar scope. This allows you to see all the way through the RA shaft.
Fig.h-1