Celestron PowerSeeker 127EQ
Contents
1. PowerSeeker 127 INSTRUCTION MANUAL 21049 INTRODUCTION Congratulations on your purchase and welcome to the Celestron world of amateur astronomy Some of the terms and parts described in these instructions may be new to you so a few commonly used terms you ll want to be familiar with are defined below Equatorial mount a type of mounting that allows the telescope to be aligned with the earth s axis in order to track the motion of the sky Focal length the distance from the optical center of the lens to the point where the incoming light rays converge creating a clear focused image Primary Mirror It gathers incoming light to create a sharply focused image Reflecting telescope an optical design in which light is reflected off of a curved mirror that converges the light into a small disk that is then magnified using an eyepiece First you need to take the time to familiarize yourself with the parts of your PowerSeeker telescope then assemble it following the easy instructions provided Next read over the operating instructions and become familiar with how your telescope works to prepare for hours of viewing enjoyment CAUTION READ THIS SECTION BEFORE USING YOUR TELESCOPE Your PowerSeeker telescope is designed to give you hours of fun and rewarding observing However there are a few things to be aware of before using your telescope that will ensure your safety and protect your equipment NEVER LOOK DIRECTLY AT THE2. Tube Rings Accessory Tray Optical Tube k Slow Motion Controls m Right Ascension Setting Circle Equatorial Mount Declination Setting Circle Latitude Adjustment Screw o Focuser o Eyepiece a i b d Collimation Screws L Counterweight Bar e g Tripod Leg Assembling Your Telescope 1 To set up the tripod spread the legs outward until they are fully extended Extend the center portion of each of the three tripod legs down 6 8 Use the three tightening screws located at the bottom of each leg to secure the extended legs in place 2 Place the accessory tray on top of tripod s center leg brace Thread the tray s threaded post into the threaded hole in the center of the leg brace Attaching the Equatorial Mount 1 Locate the equatorial mount and place the base of the mount through the hole in the center of the tripod mounting platform From underneath the tripod mounting platform thread the mounting bolt with washer into the threaded hole on the bottom of the equatorial mount 2 Thread the latitude adjustment screws into the equatorial mount until both screws are touching the inside of the mount and the mount can no longer pivot up and down 3 Locate the counterweight bar and counterweight Thread the threaded end of the counterweight bar into the Dec axis of the equatorial mount Remove the safety screw and washer from the other end of the counterweight bar Loosen the counterweight locking bolt so that t
3. 4 The right ascension setting circle does not move as the telescope moves in right ascension and thus it must by aligned each time you want to use it to find a new object However you do not need to use a bright star each time but you can use the object you are currently observing 5 Now using a star chart or atlas you can find numerous objects First move the telescope in declination to the correct declination coordinate Then move the telescope in right ascension until the indicator points to the correct coordinate 6 After moving the telescope to the correct celestial coordinates look through the lower power eyepiece to see if you have located the object you wish to view Center the object in eyepiece If the object is not visible in the eyepiece gradually pan the telescope using the right ascension and declination cables until the object is visible Always start by using your lowest power eyepiece 20mm then switching to higher power once you have found the desired object Magnification The magnification or power of a telescope varies depending upon the focal length of the eyepiece being used and the focal length of the telescope The PowerSeeker 127 telescope has a focal length of 1000mm and comes with a 20mm 11 4 eyepiece To calculate magnification use the following formula in which FL focal length FL telescope in mm Magnification FL eyepiece in mm Therefore if you use the 20mm eyepiece your magnification is
4. or logon to our web site at www celestron com Eyepieces An assortment of 1 4 eyepieces are available to give you a wide range of magnifications e OMNI Plossl Plossl eyepieces have a 4 element lens designed for low to high power observing The Plossls offer razor sharp views across the entire field even at the edges In the 1 1 4 barrel diameter they are available in the following focal lengths 4mm 6mm 9mm 12 5mm 15mm 20mm 25mm 32mm and 40mm e Ultima Ultima is not really a design but a trade name for our 5 element wide field eyepieces In the 1 1 4 barrel diameter they are available in the following focal lengths 5mm 7 5mm 10mm 12 5mm 18mm 24mm 30mm 35mm and 42mm These eyepieces are all parfocal The 35mm Ultima gives the widest possible field of view with a 1 1 4 diagonal Filters Eyepiece To enhance your visual observations of solar system objects Celestron offers a wide range of colored eyepiece filter sets that thread into the 1 1 4 oculars Available sets are 94119 10 Orange Light Blue ND13 T Polarizing s 21 80A 96ND 13 Polarizing 94119 20 Deep Yellow Red Light Green ND25 T s 12 25 56 96ND 25 94119 30 Light Red Blue Green ND50 T s 23A 38A 58 96ND 50 94119 40 Yellow Deep Yellow Violet Pale Blue s 8 15 47 82A Flashlight 93588 LED light emitting diode flashlight conveniently allow you to read star maps without diminishing your nigh
5. 93575 3 Ifthe inside of the objective lens needs cleaning it should be done by a professional Either have your instrument serviced by a telescope repair facility or return it to the factory for servicing Collimation Collimation or alignment of the optical system is done at the factory before shipment 1 If your telescope has received very rough handling during transport or is dropped it may need collimation Refer to the following sketch to check if your telescope is in collimation If you look into the eyepiece adapter without an eyepiece at the top of the focuser this is what you should see If the reflection of your eye is off center then collimation is necessary 2 Adjustments to the collimation of the telescope can be made by turning the collimation adjustment screws d located at the rear of the optical tube 3 If your telescope is out of collimation the best way to re collimate it is with a good collimation tool Celestron offers a Newtonian Collimation Tool 94183 with detailed instructions that make it an easy chore SPECIFICATIONS PowerSeeker 127 Aperture 127mm Focal Length 1000mm Focal Ratio 8 Mounting Equatorial Tripod Adjustable Aluminum Tripod NOTE Specifications are subject to change without notice 2 Optional Accessories Celestron offers a full line of optional accessories for your telescope Please refer to the Celestron Accessory Catalog 93685 for a complete description
6. SUN WITH THE NAKED EYE OR WITH A TELESCOPE NEVER POINT YOUR TELESCOPE AT THE SUN UNLESS YOU RE USING THE PROPER SOLAR FILTER PERMANENT AND IRREVERSIBLE EYE DAMAGE MAY RESULT NEVER USE YOUR TELESCOPE TO PROJECT AN IMAGE OF THE SUN ONTO ANY SURFACE OR USE AN EYEPIECE SOLAR FILTER OR A HERSCHEL WEDGE INTERNAL HEAT BUILD UP CAN DAMAGE THE TELESCOPE AND OR ANY ACCESSORIES THAT MAY BE ATTACHED TOIT NEVER LEAVE YOUR TELESCOPE UNSUPERVISED ESPECIALLY WHEN CHILDREN ARE PRESENT THIS ALSO HOLDS TRUE FOR ADULTS WHO MAY NOT BE FAMILIAR WITH THE CORRECT OPERATING PROCEDURES FOR YOUR TELESCOPE ALWAYS COVER THE FINDERSCOPE WHEN USING YOUR TELESCOPE WITH THE CORRECT SOLAR FILTER ALTHOUGH SMALL IN APERTURE THIS INSTRUMENT HAS ENOUGH LIGHT GATHERING POWER TO CAUSE PERMANENT AND IRREVERSIBLE EYE DAMAGE THE IMAGE PROJECTED BY THE FINDERSCOPE IS HOT ENOUGH TO BURN SKIN OR CLOTHING PowerSeeker 127 127mm Newtonian Reflecting Telescope 3 THE POWERSEEKER 127 Reflector The PowerSeeker is a Newtonian reflecting telescope that comes on an equatorial mount This section instructs you on the proper assembly and use of your PowerSeeker telescope which is shipped in one box containing all the parts you need to assemble it Unpack and lay out all of the parts in a large clear area where you ll have room to work Use the list below and the telescope diagram to confirm you have and can identify each part PowerSeeker 127 a Tripod Extension Screws
7. Seres i tube is parallel to the polar axis When this is done the declination setting circle will read 90 If the declination setting circle is not aligned move the telescope so that the tube is parallel to the polar axis Adjust the mount in altitude and or azimuth until Polaris is in the i field of view of the finder m Figure 9 Equatorial Head Center Polaris in the field of the telescope using the fine PowerSeeker 127 adjustment controls on the mount Remember while Polar aligning do NOT move the telescope in R A or DEC You do not want to move the telescope itself but the polar axis The telescope is used simply to see where the polar axis is pointing Declination Setting Circle Latitude Scale Right Ascension Setting Circle Figure 10 Aligning the Equatorial mount to the polar axis of the Earth Finding the North Celestial Pole In each hemisphere there is a point in the sky around which all the other stars appear to rotate These points are called the celestial poles and are named for the hemisphere in which they reside For example in the northern hemisphere all stars move around the north celestial pole When the telescope s polar axis is pointed at the celestial pole it is parallel to the Earth s rotational axis Many methods of polar alignment require that you know how to find the celestial pole by identifying stars in the area For those in the northern hemisphere finding the c
8. 1000 20 50x The same formula can be applied to any of your eyepieces Magnification through any telescope has its limits These limits are determined by the laws of optics and the nature of the human eye Most of your viewing will be done in the range of 50x to 130x Higher powers are used mainly for lunar and sometimes planetary observing where you can greatly enlarge the image and the atmospheric conditions are near perfect The images at extremely high powers magnify the image but remember that the contrast will be very low due to the high magnification For the brightest images with the most contrast start by using the lower power eyepiece with a smaller image scale The following magnification levels can be achieved when using the standard eyepieces in conjunction with the 3x Barlow lens 11 Magnification Mag with 3x Barlow Lens TELESCOPE MAINTENANCE With proper care your telescope should rarely need any maintenance work To maintain your telescope in the best possible condition observe the follow suggestions 1 When your telescope isn t in use replace all lens covers to keep dust and contaminants off the optical surfaces 2 A small amount of dust on any optical surface isn t a problem and doesn t need to be removed If the dust builds up then use a can of compressed air and a camels hair brush to remove the dust To remove fingerprints or other contaminants use an optical cleaning kit or the Celestron Lens Pen
9. anced on the declination axis to prevent any sudden motions when the DEC clamp is released To balance the telescope in DEC Release the R A clamp and rotate the telescope so that it is on one side of the mount 1 e as described in the previous section on balancing the telescope in R A Lock the R A clamp to hold the telescope in place Release the DEC clamp and rotate the telescope until the tube is parallel to the ground see figure 4 Release the tube GRADUALLY to see which way it rotates around the declination axis DO NOT LET GO OF THE TELESCOPE TUBE COMPLETELY Loosen the screws that hold the telescope tube inside the mounting rings and slide the telescope tube either forwards or backwards until it remains stationary when the DEC clamp is released Tighten the tube ring screws firmly to hold the telescope in place Figure 3 Balancing in R A Figure 4 Balancing in Declination Telescope Basics A telescope is an instrument that collects and focuses light The nature of the optical design determines how the light is focused Some telescopes known as refractors use lenses Other telescopes known as reflectors use mirrors A Newtonian reflector uses a single concave mirror as its primary Light enters the tube traveling to the mirror at the back end There light is bent forward in the tube to a single point its focal point Since putting your head in front of the telescope to look at the image with an eyepiece would keep the re
10. cope from sliding back and forth in the mounting rings Attaching the Accessories Your telescope comes with the following accessories e 20mm eyepiece 11 4 e 4mm eyepiece 11 4 e 3x Barlow Lens 11 4 e 5x24 finderscope e The Sky LI Planetarium software Remove the caps from the focuser draw tube 0 Place the chrome barrel end of the eyepiece into the focuser Lock it into place with the thumb screw on the side of the focuser Your telescope also comes with a 3x Barlow lens which triples the magnifying power of each eyepiece see Magnification section of the manual To use the barlow lens insert the barlow lens directly into the focuser Then start by using the low power eyepiece such as the 20mm and insert it directly into the barlow lens Attaching the Finderscope Remove the two small silver thumbscrews located on top of the telescope tube See Figure 2 Place the finderscope bracket over the two holes in the telescope tube lining up the holes on the finderscope bracket with those in the telescope tube Using your Telescope Figure 2 To move the telescope in declination north south there are two options For large and quick movements loosen the declination knob see figures 8 when moving the telescope and then tighten the knob when you are near the position you want For very small movements and fine adjustments use the declination cable The declination cable has a range of about 30 and if you come
11. distance from the northern horizon to the celestial pole is always equal to your latitude If you are observing from Los Angeles which has a latitude of 34 then the celestial pole is 34 above the northern horizon Alla latitude scale does then is to point the polar axis of the telescope at the right elevation above the northern or southern horizon To align your telescope 1 Make sure the polar axis of the mount is pointing due north Use a landmark that you know faces north 2 Adjust the mount in altitude until the latitude indicator points to your latitude Moving the mount affects the angle the polar axis 1s pointing This method can be done in daylight thus eliminating the need to fumble around in the dark Although this method does NOT put you directly on the pole it will limit the number of corrections you will make when tracking an object Pointing at Polaris This method utilizes Polaris as a guidepost to the celestial pole Since Polaris is less than a degree from the celestial pole you can lt i simply point the polar axis of your telescope at Polaris Although ec eon this is by no means perfect alignment it does get you within one degree Unlike the previous method this must be done in the dark when Polaris is visible Right Ascension Set the telescope up so that the polar axis is pointing north See Lock Figure 10 Latitude Adjustment Loosen the DEC clutch knob and move the telescope so that the
12. elestial pole is not too difficult Fortunately we have a naked eye star less than a degree away This star Polaris is the end star in the handle of the Little Dipper Since the Little Dipper technically called Ursa Minor is not one of the brightest constellations in the sky it may be difficult to locate from urban areas If this is the case use the two end stars in the bowl of the Big Dipper the pointer stars Draw an imaginary line through them toward the Little Dipper They point to Polaris see Figure 12 The position of the Big Dipper changes during the year and throughout the course of the night see Figure 11 When the Big Dipper is low in the sky 1 e near the horizon it may be difficult to locate During these times look for Cassiopeia see Figure 12 Observers in the southern hemisphere are not as fortunate as those in the northern hemisphere The stars around the south celestial pole are not nearly as bright as those around the north The closest star that is relatively bright is Sigma Octantis This star is just within naked eye limit magnitude 5 5 and lies about 59 arc minutes from the pole counterpart in the southern hemisphere 1s referred to as the south celestial pole Little Dipper Cassiopela pn Polaris B North Star Figure 12 The two stars in the front of the bowl of the Big Dipper point to Polaris which is less than one degree from the true north celestial pole Cassiopeia the W shaped constellatio
13. ential damages or limitation on how long an implied warranty lasts so the above limitations and exclusions may not apply to you This warranty gives you specific legal rights and you may also have other rights which vary from state to state Celestron reserves the right to modify or discontinue without prior notice to you any model or style telescope If warranty problems arise or if you need assistance in using your telescope contact Celestron Customer Service Department 2835 Columbia Street Torrance CA 90503 U S A Tel 310 328 9560 Fax 310 212 5835 Monday Friday 8AM 4PM PST All authorized returns should be shipped to Celestron 1380 Charles Willard St Carson CA 90747 This warranty supersedes all other product warranties NOTE This warranty is valid to U S A and Canadian customers who have purchased this product from an Authorized Celestron Dealer in the U S A or Canada Warranty outside the U S A and Canada is valid only to customers who purchased from a Celestron Distributor or Authorized Celestron Dealer in the specific country and please contact them for any warranty service CELESTRON Celestron 2835 Columbia Street Torrance CA 90503 Tel 310 328 9560 Fax 310 212 5835 Web site at http www celestron com Copyright 2005 Celestron All rights reserved Products or instructions may change without notice or obligation Printed in China 21049 01 05
14. flector from working a flat mirror called a diagonal intercepts the light and points it out the side of the tube at right angles to the tube The eyepiece is placed there for easy viewing Newtonian Reflector telescopes replace heavy lenses with mirrors to collect and focus the light providing much more light gathering power for the dollar Because the light path is intercepted and reflected out to the side you can have focal lengths up to 1000mm and still enjoy a telescope that is relatively compact and portable A Newtonian Reflector telescope offers such impressive light gathering characteristics you can take a serious interest in deep space astronomy even on a modest budget Newtonian Reflector telescopes do require more care and maintenance because the primary mirror is exposed to air and dust However this small drawback does not hamper this type of telescope s popularity with those who want an economical telescope that can still resolve faint distant objects Figure 5 A cutaway view of the light path of the Newtonian optical design Image Orientation Newtonian reflectors produce a right side up image but the image will appear rotated based on the location of the eyepiece holder in relation to the ground Newtonian reflectors are best for astronomical use where right side up does not matter JUN Californi 32000 20 SAVALL OSI gt SEL LESK3 K302 150 YEARS td wavofpog NAF Upside down image as viewed wi
15. he screw is no longer obstructing the center hole of the counterweight Slide the counterweight half way up the counterweight bar and tighten the ae locking screw to secure the counterweight in place Thread the safety screw and washer Motion on to the end of the counterweight bar Before attaching the optical tube the counterweight and slow motion controls should be added to the mount 4 Slide the chrome end of the slow motion control cables onto the equatorial mount gear Metal shaft See Figure 1 The longer cable should attach to the Right Ascension axis and the ech moors shorter cable attaches to the Declination axis Cable Figure 1 Attaching the Optical Tube You are now ready to put the telescope optical tube c onto the equatorial mount f l Zz Insert the thumbscrews through the finderscope bracket and thread them into the telescope tube Moving Your Telescope To change the direction your telescope is pointing 1 Slightly loosen the screws that hold the mounting rings on the telescope in place Slide the rings apart so that each is at the same distance as the holes in the mounting platform Place the telescope tube on the mount so that the treaded post at the bottom of the tube rings go through the holes on the mounting platform Thread a wing nut onto the end of the threaded posts and tighten to secure the tube to the mount Tighten the screws that hold the mounting rings in place This will keep the teles
16. mplete path is interrupted by the horizon These appear to rise in the east and set in the west 2 Looking toward the opposite pole stars south celestial pole eo curve or arc in the opposite direction scribing a circle around the opposite pole 3 Latitude Scales The easiest way to polar align a telescope is with a latitude scale Unlike other methods that require you to find the celestial pole by identifying certain stars near it this method works off of a known constant to determine how high the polar axis should be pointed see figure 10 The constant mentioned above is a relationship between your latitude and the angular distance the celestial pole is above the northern or southern horizon The angular distance from the northern horizon to the north celestial pole is always equal to your latitude To illustrate this imagine that you are standing on the north pole latitude 90 The north celestial pole which has a declination of 90 would be directly overhead t e 90 above the horizon Now let s say that you move one degree south your latitude is now 89 and the celestial pole is no longer directly overhead It has moved one degree closer toward the northern horizon This means the pole is now 89 above the northern horizon If you move one degree further south the same thing happens again You would have to travel 70 miles north or south to change your latitude by one degree As you can see from this example the
17. n is on the opposite side of the pole from the Big Dipper The North Celestial Pole N C P is marked by the sign Polaris North Star Minter gt gt Summer C e Figure 11 The position of the Big Dipper changes throughout the year and the night The north celestial pole is the point in the northern hemisphere around which all stars appear to rotate The Using the Setting Circles Setting Circles are dials or gauges for right ascension and declination that allow you to locate celestial objects easily from their coordinates as listed in a star chart or atlas 1 The declination setting circle see Figure 9 is scaled in degrees and the right ascension setting circle is incremented in minutes The circles will get you close to your target but not directly on it Also the accuracy of your polar alignment will affect how accurate your setting circles read 2 The declination setting circle is factory set and should not need any adjustment if it reads accurately 3 The right ascension setting circle must be aligned Choose a bright and easy to find star in a star chart and note the coordinates right ascension and declination Find the star in the Star Pointer and then in the telescope Now rotate the right ascension circle to match the coordinates of the star with the indicator mark If you polar aligned the telescope accurately the declination circle should be correctly set to the proper coordinates
18. nd higher contrast images The Sun appears in its real color neutral white and the sky adjacent to the solar limb is jet black You can see detail in sunspots bright faculae near the limb and the mottled areas known as granules with these filters A full description of all Celestron accessories can be found on our web site at www celestron com 13 CELESTRON TWO YEAR WARRANTY A Celestron warrants this telescope to be free from defects in materials and workmanship for two years Celestron will repair or replace such product or part thereof which upon inspection by Celestron is found to be defective in materials or workmanship As a condition to the obligation of Celestron to repair or replace such product the product must be returned to Celestron together with proof of purchase satisfactory to Celestron B The Proper Return Authorization Number must be obtained from Celestron in advance of return Call Celestron at 310 328 9560 to receive the number to be displayed on the outside of your shipping container All returns must be accompanied by a written statement setting forth the name address and daytime telephone number of the owner together with a brief description of any claimed defects Parts or product for which replacement is made shall become the property of Celestron The customer shall be responsible for all costs of transportation and insurance both to and from the factory of Celestron and shall be required to prepa
19. own into degrees minutes of arc and seconds of arc Declination readings south of the equator carry a minus sign in front of the coordinate and those north of the celestial equator are either blank i e no The celestial sphere seen from the outside showing R A and DEC designation or preceded by a plus sign The celestial equivalent of longitude is called Right Ascension or R A for short Like the Earth s lines of longitude they run from pole to pole and are evenly spaced 15 degrees apart Although the longitude lines are separated by an angular distance they are also a measure of time Each line of longitude is one hour apart from the next Since the Earth rotates once every 24 hours there are 24 lines total As a result the R A coordinates are marked off in units of time It begins with an arbitrary point in the constellation of Pisces designated as 0 hours 0 minutes 0 seconds All other points are designated by how far 1 e how long they lag behind this coordinate after it passes overhead moving toward the west Motion of the Stars The daily motion of the Sun across the sky is familiar to even the most casual observer This daily trek is not the Sun moving as Stars seen near the north early astronomers thought but the result of celestial pole the Earth s rotation The Earth s rotation also causes the stars to do the same scribing out a large circle as the Earth completes one rotation The size of the circular pa
20. t vision Feature adjustable brightness and is lightweight Light Pollution Reduction LPR Filter 94123 A 1 4 filter that threads into a 1 4 eyepiece designed to enhance your views of deep sky astronomical objects when observed from urban areas The LPR filter selectively reduces the transmission of certain wavelengths of light specifically those produced by artificial lights This includes mercury and high and low pressure sodium vapor lights Additionally it blocks unwanted natural light also known as sky glow Sky Maps 93722 When learning the night sky Celestron Sky Maps offer just the guidance you need The maps show all the constellations and brighter deep sky objects and are printed on heavy moisture resistant paper for durability The front cover features a rotating planisphere indicating when specific constellations are visible Peterson First Guides Astronomy 93728 A simplified field guide to the stars the planets and the universe featuring full color maps showing the positions of the stars throughout the year This useful guide also includes beautiful constellation paintings photographs and clear concise descriptions of stars the planets the sun the moon comets black holes galaxies and more Solar Filters 114 127mm 94134 Celestron Solar Filters are made with Baader Astro Solar Safety Film Far superior than any existing glass Mylar or polymer filters they lead to brighter sharper a
21. th a star follows depends on where it is in the sky Stars near the celestial equator form the largest circles rising in the east and setting in the west Stars seen near the celestial Moving toward the north celestial pole the equator point around which the stars in the northern hemisphere appear to rotate these circles become smaller Stars in the mid celestial latitudes rise in the northeast and set in the northwest Stars at high celestial latitudes are always above the horizon and are said to be circumpolar because they never rise and never set You will never see the stars Stars seen looking in the complete one circle because the sunlight opposite direction of the during the day washes out the starlight north celestial pole However part of this circular motion of stars in this region of the sky can be seen by setting up a camera on a tripod and opening the shutter for a couple hours The processed film will reveal semicircles that Figure 8 revolve around the pole This description All stars appear to rotate around the celestial poles However the appearance of this motion of stellar motions also applies to the varies depending on where you are looking in the sky Near the north celestial pole the stars southern hemisphere except all stars south scribe out recognizable circles centered on the pole 1 Stars near the celestial equator also of the celestial equator move around the follow circular paths around the pole But the co
22. th the unaided eye though a Newtonian telescope Focusing To focus your telescope simply turn the focus knob located directly below the eyepiece holder Turning the knob clockwise allows you to focus on an object that is farther than the one you are currently observing Turning the knob counterclockwise from you allows you to focus on an object closer than the one you are currently observing If you wear corrective lenses specifically glasses you may want to remove them when observing with an eyepiece attached to the telescope However when using a camera you should always wear corrective lenses to ensure the sharpest possible focus If you have astigmatism corrective lenses must be worn at all times The Celestial Coordinate System To help find objects in the sky astronomers use a celestial coordinate system that is similar to our geographical coordinate system here on Earth The celestial coordinate system has poles lines of longitude and latitude and an equator For the most part these remain fixed against the background stars The celestial equator runs 360 degrees around the Earth and separates the northern celestial hemisphere from the southern Like the Earth s equator it bears a reading of zero degrees On Earth this would be latitude However in the sky this is referred to as declination or DEC for short Lines of declination are named for their angular distance above and below the celestial equator The lines are broken d
23. to the stop at the end of its travel do not try to force movement when the declination cable has reached the stop Instead loosen the declination knob and manually move the telescope in declination until you pass the object in the opposite direction Then tighten the knob and reverse the direction of the declination cable 2 To move the telescope in right ascension east west there are two options For large and quick movements loosen the right ascension knob when moving the telescope and then tighten the knob when you are near the position you want For very small movements and fine adjustments turn the right ascension cable Unlike the declination cable the right ascension cable has 360 of continuous motion Balancing the Telescope in Right Ascension R A The telescope should be properly balanced in order for it to move smoothly in both axes Proper balance is essential if using an optional motor drive for accurate tracking 1 To balance the right ascension axis move the counterweight shaft so it is parallel horizontal to the ground See figure 3 Slowly release the right ascension knob and see if the optical tube moves If the optical tube moves then slide the counterweight up or down the counterweight shaft until the optical tube remains stationary in the parallel position to the ground When this happens make sure the counterweight lock is tight Balancing the Telescope in Declination DEC The telescope should also be bal
24. y such costs Celestron shall use reasonable efforts to repair or replace any telescope covered by this warranty within thirty days of receipt In the event repair or replacement shall require more than thirty days Celestron shall notify the customer accordingly Celestron reserves the right to replace any product which has been discontinued from its product line with a new product of comparable value and function This warranty shall be void and of no force of effect in the event a covered product has been modified in design or function or subjected to abuse misuse mishandling or unauthorized repair Further product malfunction or deterioration due to normal wear is not covered by this warranty CELESTRON DISCLAIMS ANY WARRANTIES EXPRESS OR IMPLIED WHETHER OF MERCHANTABILITY OF FITNESS FOR A PARTICULAR USE EXCEPT AS EXPRESSLY SET FORTH HEREIN THE SOLE OBLIGATION OF CELESTRON UNDER THIS LIMITED WARRANTY SHALL BE TO REPAIR OR REPLACE THE COVERED PRODUCT IN ACCORDANCE WITH THE TERMS SET FORTH HEREIN CELESTRON EXPRESSLY DISCLAIMS ANY LOST PROFITS GENERAL SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES WHICH MAY RESULT FROM BREACH OF ANY WARRANTY OR ARISING OUT OF THE USE OR INABILITY TO USE ANY CELESTRON PRODUCT ANY WARRANTIES WHICH ARE IMPLIED AND WHICH CANNOT BE DISCLAIMED SHALL BE LIMITED IN DURATION TO A TERM OF TWO YEARS FROM THE DATE OF ORIGINAL RETAIL PURCHASE Some states do not allow the exclusion or limitation of incidental or consequ
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