The Synscan Goto Hand Controller; Technical Specifications - Orion Atlas EQ-G Instruction Manual

a.
Figure 9.
These illustrations show the telescope pointed in the four cardinal directions. (a) north, (b) south, (c) east, (d) west. Note that the
tripod and mount have not been moved; only the telescope has been moved on the its R.A. and Dec. axes.
To point the telescope to the east or west, or in other direc‑
tions, you rotate the telescope on its right ascension and
declination axes. Depending on the altitude of the object you
want to observe, the counterweight shaft will be oriented
somewhere between vertical and horizontal.
Figure 9 illustrates how the telescope will look when point‑
ed at the four cardinal directions: north (Figure 9a), south
(Figure 9b), east (Figure 9c) and west (Figure 9d).
The key things to remember when pointing the telescope are
that a) you only move it in right ascension and declination, not
in azimuth or latitude (altitude), and b) the counterweight and
shaft will not always appear as it does in Figure 1. In fact it
almost never will!
Powering the atlas EQ‑G Mount
The Atlas EQ‑G should be powered by an 11V to 15V DC
power supply (tip positive) capable of producing continuous
current of a minimum 2 amps. We recommend using a porta‑
ble rechargeable battery, like the Dynamo Pro available from
Orion.
If you are using a field battery like the Orion Dynamo Pro, use
the 12V DC power cable supplied with your mount (male ciga‑
rette lighter plug on one end, standard 12V DC power plug
on other end) to connect the battery to the 12V DC power
jack on the mount. Make sure the Dynamo's power switch is
in the "on" position after connecting. Then, to turn the mount
(and GoTo hand controller) on, simply press the switch on the
mount so it is in the "on" position.
Note: The power indicator LED on the mount (near the power
switch) will begin to flash when the battery power is low. When
the battery power is extremely low, the LED will flash rapidly.
Recharge or replace the battery as needed.
7. the synscan Goto
Hand controller
The Atlas EQ‑G mount equipped with the GoTo hand control‑
ler provides easy, computerized location of thousands of night
sky objects such as planets, nebulae, star clusters, galaxies,
and more for viewing through your telescope. The SynScan
GoTo Hand Controller and internal dual‑axis motors allow you
to automatically point your telescope at a specific object, or
tour the skies with pushbutton simplicity. The user‑friendly
8
b. c.
menu allows automatic slewing to over 42,000 objects. Even
inexperienced astronomers will find themselves quickly mas‑
tering the variety of features the GoTo hand controller offers in
just a few observing sessions.
For detailed information about the SynScan GoTo Hand
Controller, see the manual for the SynScan.

8. technical specifications

Mount:
Tripod:
Weight:
Counterweights:
Polar axis latitude adjustment:
Polar axis finder scope:
Motor drives:
Operation:
Power requirement:
Motor type and resolution:
Resolution:
Gear ratio:
This device complies with Part 15 of the FCC Rules. Operation
is subject to the following two conditions: (1) this device nay
not cause harmful interference, and (2) this device must
accept any interference received, including interference that
may cause undesired operation.
Changes of modifications not expressly approved by the party
responsible for compliance could void the user's authority to
operate the equipment.
Note: This equipment has been tested and found to comply
with the limits for a Class B digital device, pursuant to Part
15 of the FCC Rules. These limits are designed to provide
rea son able protection against harmful interference in a resi‑
dential installation. This equipment generates, uses and can
radiate radio frequency energy and, if not installed and used
d.
German equatorial
Steel
54 lbs.
Quantity 2, 11 lbs. each
10° to 65°
Included, illuminator built
into mount
Dual‑axis, GoTo comput‑
erized, internally housed
Northern or Southern
hemisphere
12V DC, 2A (tip positive)
Microstep driven 1.8°
stepper motors
0.144 arc sec (or
9,024,000 steps/rev)
705