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望遠鏡 ASTRO-PHYSICS 1200のPDF マニュアルをオンラインで閲覧またはダウンロードできます。ASTRO-PHYSICS 1200 13 ページ。 Polar alignment telescope and illuminator (pasill)
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OPERATION OF THE QUARTZ MICRO-DRIVE CONTROLLER

The push button controller contains all the circuitry for driving the two motors. The controller will be operational when

attached to both the motors of the mount and a power source. There is no on-off switch.

A very accurate quartz clock specifically calibrated for the drive gear is an integral part of the controller. The calibration is

made to the King sidereal rate, which compensates for atmospheric refraction over a large part of the sky. With this

tracking rate, it is easier to maintain critical guiding at high power. For the most sophisticated tracking of celestial objects,

the controller has a built-in provision for attaching a ST-4 or ST-6 CCD imaging camera/autoguider. Using the autoguider

function, it is possible to take long exposure astrophotos totally unattended. You can walk away from the setup to enjoy

other observing activities while your astrograph is in operation.

CABLES: Place the DC power cord into the phono plug outlet of the R.A. motor box.

Plug the short length of the "Y" cable into the R.A. motor box and the long

length into the Dec. motor box. Complete the cable assembly by joining the

control box cable to the "Y" cable. The control box and motors are designed to

work at 12 volts DC. Suggested power sources include: portable rechargeable

battery pack, auto battery, or power inverter for 110 volts with a minimum

output of 800ma.

DRIVE ROTATION: If you are operating the 1200 mount north of the equator, the HEM

(hemisphere) switch must be set to "N". If south of the equator, set the switch

to "S".

PUSH BUTTONS: The four red buttons are arranged so that the left and right buttons

control the movement in right ascension, and the top and bottom buttons

control the declination. This is the normal orientation of objects in the eyepiece

field. If the star moves down when you push the "N" button, move the DEC

REV (Dec. Reverse) switch to the opposite position. Pushing the right hand

button "E" should cause the star to move to the right. If it moves to the left,

move the R.A. REV (R.A. Reverse) switch to the other position. When

properly set up, the controller buttons will cause the object to move according

to your orientation at the eyepiece.

MODE SWITCH: There are three guiding modes (rates): a 2X guiding rate, an 8X and a

16X slew rate. The slew rates are for positioning objects in the field; the

guiding rate is for fine-guiding at high powers during astrophotography. Move

the switch to select the mode that you prefer.

SELECT BUTTON: The control box has three drive rates to choose from: SID (sidereal),

SOL (Solar), and LUN (lunar). Select the position appropriate for the object

under observation.

King Sidereal: Tracking rate for observing planets, stars, galaxies, and other

distant objects.

Solar:

Tracking rate for observing the sun.

Lunar:

Tracking rate for observing the moon.

LED KNOB: There is an LED output available on the 1200 Dec. axis motor housing as

shown in the diagram on page 2. You may insert your LED reticle to this plug.

Brightness can then be controlled using the MIN to MAX (minimum to

maximum) setting of the LED knob.

AUTOGUIDER CONNECTION: If you own a Santa Barbara Instrument Group (SBIG)

ST-4 or ST-6 Star Tracker/Imaging system, connect it to the controller via the

9-PIN connector. Call Astro-Physics to purchase a separate cable for this

connection, or we can add the correct connector to the cable supplied by

SBIG.

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