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Orion 8684 Instruction Manual

Orion 8684 Instruction Manual

Polar axis scope for hdx110 eq-g goto mount

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Orion Polar Axis Scope for
HDX110 EQ-G GoTo Mount
The Polar Axis Scope for the Orion HDX110 EQ-G mount
attaches externally to the front face of the mount head and
allows quick, accurate polar alignment of the mount for visual
or astrophotographic use. These instructions describe how to
set up and use the Polar Axis Scope. Please read them care-
fully before proceeding.
Included Parts
Qty
Item
1
Polar axis scope with aluminum bracket
2
Socket head capscrews
1
1.5mm hex key
1
6mm hex key
Attach the Polar Scope
Install the polar scope assembly on the HDX110 mount with
the two socket head capscrews as shown in Figure 1. Use
the supplied 6mm hex key to tighten the screws.
The Polar Scope Reticle
The reticle includes star patterns useable in both the Northern
and Southern hemispheres (Figure 2). For the Northern
hemisphere it has representations of the Big Dipper and
Cassiopeia; for the Southern hemisphere is has four bright
stars of the constellation Octans. The celestial pole for either
hemisphere is marked by a cross. The large circle around the
cross represents the offset of Polaris from the actual North
Celestial Pole.
If the reticle image appears blurred, rotate the knurled ring of
the polar scope's eyepiece to focus.
Providing Exceptional Consumer Optical Products Since 1975
InSTRucTIOn MAnuAl
#8684
Bracket
Polar scope
Figure 1. The polar scope attached to the HDX110 EQ-G mount.
Figure 2. Reticle pattern of the polar scope allows polar
alignment in both northern and southern hemispheres.
Customer Support:
www.OrionTelescopes.com/contactus
Corporate Offices:
89 Hangar Way, Watsonville CA 95076 - USA
Capscrews
IN 505 Rev. A 10/13

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Summary of Contents for Orion 8684

  • Page 1 Orion Polar Axis Scope for HDX110 EQ-G GoTo Mount #8684 The Polar Axis Scope for the Orion HDX110 EQ-G mount attaches externally to the front face of the mount head and allows quick, accurate polar alignment of the mount for visual or astrophotographic use.
  • Page 2 Align the Polar Scope Before using the polar scope for polar alignment, it must be aligned to the mount’s right ascension (R.A.) axis. There are actually two calibration routines that must be performed. calibration #1 – Align the reticle to the rotating axis of the polar scope Choose a fixed object (Polaris at night, or a far-away object in daylight).
  • Page 3 Another Method for Placing Polaris at the correct Offset Position Because Polaris is not located exactly at the NCP, it is neces- sary to determine the orientation of Polaris on the circle sur- rounding the NPC (cross) on the reticle. Another way to do this is to use the SynScan hand controller as follows: At the end of the initialization of the SynScan hand control- ler (see the SynScan manual), after entering the proper local...
  • Page 4 One-Year limited Warranty This Orion product is warranted against defects in materials or workmanship for a period of one year from the date of purchase. This warranty is for the benefit of the original retail purchaser only. During this warranty period Orion Telescopes & Binoculars will repair or replace, at Orion’s option, any warranted instrument that proves to be defective, provided it is returned postage paid.