User manual SKYWATCHER EQ1

[. . . ] INSTRUCTION MANUAL Telescopes with EQ1 & EQ2 Mount 060103V1 REFRACTOR B EQ1 D E F H I J K L M G 12 11 C A 10 9 8 7 6 5 1 2 3 4 EQ2 C D E F 12 11 10 9 8 7 6 5 4 1 2 3 a b B A G H a b EQ1 A. Dust Cap/Mask (Remove before Viewing) I EQ2 A. Dust Cap/Mask (Remove before Viewing) J KL B. Tripod Leg c REFLECTOR/MAKSUTOV E F D C B G H I J K A 11 10 9 8 7 6 5 3 4 2 1 EQ1 C B E D F G EQ2 H I A J K 12 11 10 9 8 1 7 6 5 2 3 4 a b EQ1 A. [. . . ] Loosen the azimuth lock knob and rotate the mount horizontally until the R. A. Look through the finderscope and centre Polaris on the crosshairs by adjusting the azimuth and latitude settings if a more accurate polar alignment is desired. EQ2: Unlock the DEC lock knob and rotate the telescope tube until the pointer on the setting circle reads 90°. At the top of the main shaft is a white line with "R" "A" on either side of it. Loosen the azimuth lock knob and rotate the mount until the white line points roughly at Polaris. Look through the finderscope and centre Polaris on the crosshairs by adjusting the azimuth and latitude settings if a more accurate polar alignment is desired. Fig. h 30 0 90 60 90 80 70 60 50 40 30 2010 0 unlock unlock EQ1 EQ2 Big Dipper Fig. i Polaris + NCP Little Dipper Cassiopeia After a while you will notice your target drifting slowly North or South depending on the direction of the pole relative to Polaris. To keep the target in the center of the view, turn only the R. A. After your telescope is polar aligned, no further adjustments in the azimuth and latitude of the mount should be made in the observing session, nor should you move the tripod. and DEC axis should be made in order to keep an object in the field. 14 Southern Hemisphere In the Southern Hemisphere you must align the mount to the SCP by locating it's position with star patterns, without the convenience of a nearby bright star. Sigma Octanis which is about one degree away. Two sets of pointers which help to locate the SCP are alpha and beta Crucis (in the Southern Cross) and a pointer running at a right angle to a line connecting alpha and beta Centauri (Fig. j). Fig. j alpha Centauri beta Centauri beta Crucis a eg is om tan Oc alpha Crucis Tracking Celestial Objects SCP + When observing through a telescope, astronomical objects appear to move slowly through the telescope's field of view. When the mount is correctly polar aligned, you only need to turn the R. A. slow-motion to follow or track objects as they move through the field. slow-motion control is not needed for tracking. motor drive can be added to automatically track celestial objects by counteracting the rotation of the Earth. drive matches the Earth's rotation rate for stars to appear stationary in the telescope eyepiece. Different tracking speeds are also available in some models. A second drive can be added to give DEC control which is very useful for doing astrophotography. Using the setting circles The quickest way to find objects is to learn the Constellations and use the Red Dot Finder, but if the object is too faint you may want to use setting circles on your mount. Setting circles enable you to locate celestial objects whose celestial co-ordinates have been determined from star charts. Your telescope must be polar aligned and the R. A. setting circle must be calibrated before using the setting circles. setting circle was set at the factory, and does not require calibrating the same manner as the R. A. [. . . ] If you can't see them (Fig. u), it means that you will have to adjust the three bolts on the top of the secondary mirror holder, with possibly an Allen wrench or Phillip's screwdriver. You will have to alternately or loosen one and then compensate for the slack by tightening the other two. Stop when you see all three mirror clips (Fig. v). Make sure that all three small alignment screws are tightened to secure the secondary mirror in place. Adjusting screw Fig. v Ignore the reflected image for now Primary mirror clip Primary mirror clip Primary mirror clip 22 Aligning the primary mirror Find the three locking screws at the back of your telescope and loosen them by a few turns. Adjusting screw Locking screw Locking screw Adjusting screw If you see 3 large nuts protruding from the back of your telescope and 3 small Phillip's-head screws besides them, the Phillip's-head screws are the locking screws and the large nuts are the adjusting screws. hex bolt (Locking screw) Adjusting screw If you see 6 Phillip's-head screws but 3 protruding from the back of your telescope, the 3 protruding screws are locking screws and the ones next to them are adjusting screws. If you see 3 hex bolts and 3 Phillip's head screws, the hex bolts are the locking screws and the Phillip's-head screws are the adjusting screws. [. . . ]