Carson Optical RP-300 Telescope User Manual


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Your telescope is now polar aligned for the area you are using it. You will
needonlytopointthetelescopeNorth(orSouthintheSouthernHemisphere)
when using it from now on. You will only need to repeat the polar alignment
if you move to a different location and your latitude has changed.
Using the Telescope:
Once you have properly assembled, balanced and aligned your telescope you
arenallyreadytostartusingit.
•Tolocateanobjectusingthetelescope,rstloosentheR.A.lock
(Fig.3-22)andDec.lock(Fig.3-15)allowingthetelescopetorotate
alongbothaxes.Lookthroughthenderscope(Fig.1-1)tosightthe
objectyouarelookingforandcenteritinthenderscope
cross-hairs.Youmayneedtofocusthenderscopebyturningthe
nderscopefocusknob(Fig.5-25).Thenre-tightentheR.A.and
Dec.locks.
•Itisbesttousethelowestpowereyepiece(theKellner20mm
eyepiece)atrst.Thisallowsforawidereldofviewmakingit
easiertolocateobjects.Oncetheobjectiscenteredintheeldof
viewyoucanswitchtheeyepiecetohighermagnications.
•Oncetheobjectiscenteredintheeldofview,turnthefocusknobs
(Fig.4-4)ontheeyepiecefocuser(Fig.4-2)untiltheimageisclear
and sharp.
•Youwillnoticethattheobjectyouareviewingwillslowlymove
acrosstheeldofview(causedbytherotationoftheEarth).You
willneedtoturntheR.A.exiblecable(Fig.1-8)tokeeptheobject
centered.
Image Orientation:
Youwillnoticethattheimageyouseethroughyournderscopeandtele-
scopeareinverted(upsidedown).ThisisnormalforNewtonianReector
telescopes.
Using Setting Circles:
Thesettingcircles(Fig.3-16,17)onyourequatorialmountcanbeusedto
locatehardtondcelestialobjects.Followtheinstructionsbelowtousethe
setting circles effectively:
•Makesureyourtelescopeisassembledproperlyandpolaraligned.
•Lookupthecelestialcoordinatesofaneasytospotobjectlocated
nearbytotheobjectyouseekonastarchartoratlas(notincluded).
•Centerthiseasytospotobjectintheeldofviewofyourtelescope.
•RotatetheR.A.settingcircle(Fig.3-17)onyourtelescope’smount
byhanduntilthepropercoordinatelinesupwiththeR.A.indicator.
YouwillnoticethattheR.A.settingcirclehastwosetsofnumbers.
The top numbers are for the Northern hemisphere. The bottom
numbersarefortheSouthernhemisphere.Oncecompleteyour
setting circles are now calibrated. You are now ready to locate the
hardtondobject.
•LoosentheDec.lock(Fig.3-15)andmovethetelescopein
Declinationuntiltheindicatorpointstothecorrectcoordinate.
Re-tightentheDec.Lockwhennished
•LoosentheR.A.lock(Fig.3-22)andmovethetelescopeinR.A.un-
tiltheindicatorpointstothecorrectcoordinate.Re-tightentheR.A.
lockwhennished.
•Lookthroughthenderscope(Fig.1-1)toseeifyouhavelocated
theobjectyouarelookingforandcentertheobjectinthecrosshairs
ofthenderscope.
•Lookthroughthetelescopeeyepieceandtheobjectyouaresearching
forshouldbecenteredintheeldofview.
•Thisprocessmustberepeatedeverytimeyousetupyourtelescope.
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