Orion XT4.5 Uživatelský manuál

IN 164 Rev.AProviding Exceptional Consumer Optical Products Since 1975Customer Support (800) 676-1343E-mail: [email protected] Offices (8

10Cooling the TelescopeAll optical instruments need time to reach “thermal equilibri-um” to achieve maximum stability of the lenses and mirrors,which

11Remember that objects appear to move across the fieldof view faster at higher magnifications. This is becausethe field of view becomes narrower.Eyep

12Io, Callisto, Europa, and Ganymede. Higher power eyepiecesshould bring out the cloud bands on the planet’s disk.SATURN The ringed planet is a breath

ly, until the telescope is centered on the new star.Continue using stars as guideposts in this way until you arethe approximate position of the object

14Appendix A:Collimation (Aligning theMirrors)Collimation is the process of adjust-ing the mirrors so they are perfectlyaligned with one another. Your

15the secondary mirror (the smallest circle, with the collimation cap“dot” in the center) is off-center. You will fix that in the next step.Adjusting

16Before cleaning with fluid and tissue, blow any loose particles off thelens with a blower bulb or compressed air. Then apply some clean-ing fluid to

2Welcome to an exciting new world of adventure! Your SkyQuest XT4.5 Dobsonian is a high-quality opti-cal instrument designed to bring you dazzling vie

31. UnpackingThe telescope will arrive in two boxes, one containing theoptical tube assembly and accessories, the other containingthe unassembled Dobs

42. AssemblyNow that you have unpacked the boxes and familiarizedyourself with all the parts in front of you, it's time to beginassembly. The opt

5You can install the rack so that it can be removed, or you caninstall it so it is permanently attached. About halfway downthe left side panel of the

To place the finder scope in the finder scope bracket, firstunthread the two black nylon screws until the screw ends areflush with the inside diameter

XT4.5 during the day, before observing astronomical objectsat night. This way you will not have to fumble around trying toorient yourself in the dark!

8(open) end is pointing in the general direction of an object atleast 1/4-mile away. Now, with your fingers, slowly rotate oneof the focuser knobs un

925mm eyepiece, you may want to increase the magnificationto get a closer view. Loosen the thumbscrew on the focuserdrawtube and remove the eyepiece.