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Celestial pole 

The imaginary projection of Earth’s rotational axis 
north or south pole onto the  
celestial sphere . 

Celestial  

An imaginary sphere surrounding the Earth,  

Sphere 

concentric with the Earth’s center . 

Collimation 

The act of putting a telescope’s optics into perfect 
alignment . 

D –

 

Declination 

The angular distance of a celestial body 

(DEC) 

north or south of the celestial equator. It may  

 

be said to correspond to latitude on the  

 

surface of the Earth . 

E –

 

Ecliptic  

The projection of the Earth’s orbit on to the celestial 
sphere. It may also be defined as “the apparent 
yearly path of the Sun against the stars .” 

Equatorial  

A telescope mounting in which the instrument 

mount 

is set upon an axis which is parallel to the  

 

axis of the Earth; the angle of the axis must be  

 

equal to the observer’s latitude . 

F –

 

Focal length  

The distance between a lens (or mirror) and the point 
at which the image of an object at infinity is brought 
to focus . The focal length divided by the aperture of 
the mirror or lens is termed the focal ratio . 

G –

 

GoTo 

Term used to refer to a computerized telescope 
or to the act of slewing (moving) a computerized 
telescope .

J –

 

Jovian Planets 

Any of the four gas giant planets that are at a greater 
distance form the Sun than the terrestrial planets .

K –

 

Kuiper Belt 

A region beyond the orbit of Neptune extending 
to about 1000 AU which is a source of many short 
period comets .

L –

 

Light–Year (ly) 

A light–year is the distance light traverses in a 
vacuum in one year at the speed of 186,000 mi/sec. 
(299,792 km/sec.) With 31,557,600 seconds in a year, 
the light–year equals a distance of 5.88 trillion miles 
(9.46 trillion km). 

– 

Magnitude 

Magnitude is a measure of the brightness of a 
celestial body . The brightest stars are assigned 
magnitude 1 and those increasingly fainter from 
2 down to magnitude 5 . The faintest star that can 
be seen without a telescope is about magnitude 6. 
Each magnitude step corresponds to a ratio of 2 .5 in 
brightness . Thus a star of magnitude 1 is 2 .5 times 
brighter than a star of magnitude 2, and 100 times 
brighter than a magnitude 5 star . The brightest star, 
Sirius, has an apparent magnitude of –1.6, the full 
moon is –12.7, and the Sun’s brightness, expressed 
on a magnitude scale, is –26.78. The zero point of the 
apparent magnitude scale is arbitrary . 

Meridian 

A reference line in the sky that starts at the North 
celestial pole and ends at the South celestial pole and 
passes through the zenith. If you are facing South, 
the meridian starts from your Southern horizon and 
passes directly overhead to the North celestial pole .

Messier  

A French astronomer in the late 1700s who was 
primarily looking for comets . Comets are hazy 
diffuse objects and so Messier cataloged objects 
that were not comets to help his search . This catalog 
became the Messier Catalog, M1 through M110 .

N –

 

Nebula 

Interstellar cloud of gas and dust. Also  
refers to any celestial object that has a  
cloudy appearance . 

North Celestial 

The point in the Northern hemisphere around 

Pole 

which all the stars appear to rotate . This is  

 

caused by the fact that the Earth is rotating on  

 

an axis that passes through the North and  

 

South celestial poles . The star Polaris lies less  

 

than a degree from this point and is therefore  

 

referred to as the “Pole Star” . 

Nova 

Although Latin for “new” it denotes a star that 
suddenly becomes explosively bright at the end of its 
life cycle . 

O –

 

Open Cluster 

One of the groupings of stars that are concentrated 
along the plane of the Milky Way . Most have 
an asymmetrical appearance and are loosely 
assembled . They contain from a dozen to many 
hundreds of stars . 

P –

 

Parallax 

Parallax is the difference in the apparent position 
of an object against a background when viewed 
by an observer from two different locations. These 
positions and the actual position of the object form 
a triangle from which the apex angle (the parallax) 
and the distance of the object can be determined 
if the length of the baseline between the observing 
positions is known and the angular direction of the 
object from each position at the ends of the baseline 
has been measured . The traditional method in 
astronomy of determining the distance to a celestial 
object is to measure its parallax.

Parfocal 

Refers to a group of eyepieces that all require the 
same distance from the focal plane of the telescope 
to be in focus . This means when you focus one 
parfocal eyepiece all the other parfocal eyepieces, in 
a particular line of eyepieces, will be in focus . 

Parsec  

The distance at which a star would show parallax 
of one second of arc. It is equal to 3.26 light–years, 
206,265 astronomical units, or 30,800,000,000,000 
km . (Apart from the Sun, no star lies within one 
parsec of us .) 

Point Source 

An object which cannot be resolved into an image 
because it to too far away or too small is considered 
a point source . A planet is far away but it can be 
resolved as a disk . Most stars cannot be resolved as 
disks, they are too far away . 

Summary of Contents for 11007

Page 1: ...InstructionManual 11007 11008 11009...

Page 2: ...www celestron com...

Page 3: ...20 22 CELESTIAL OBSERVING 23 24 CELESTIAL PHOTOGRAPHY 25 29 TELESCOPE MAINTENANCE 30 31 OPTIONAL ACCESSORIES 31 32 APPENDIX A TECHNICAL SPECIFICATIONS 33 34 APPENDIX B GLOSSARY OF TERMS 34 36 APPENDI...

Page 4: ...other high performance features TheCPC DeluxeHD s features combined withCelestron s legendary optical systems give amateur astronomers the most sophisticated and easy to use telescopes available on th...

Page 5: ...onal 9 Schmidt Corrector Lens 14 Accessory Tray Center 4 Hand Control 10 Altitude Locking Knobs Support Bracket 5 Eyepiece 11 Carrying Handle 15 Focus Knob 6 Finderscope A Hand Control Port C PC Inter...

Page 6: ...tached so the tripod legs can collapse To set up the tripod 1 Hold the tripod with the head up and the legs pointed toward the ground 2 Pull the legs away from the central column until they will not s...

Page 7: ...be aligned for GoTo use Any manual movement of the telescope will invalidate your telescope s alignment Before attaching your visual accessories first loosen the altitude locking knob while holding t...

Page 8: ...erscope Installation The finderscope must first be mounted in the included quick release bracket then attached to the rear cell of the telescope To install the finderscope 1 Locate the finderscope mou...

Page 9: ...target Remember that the image orientation through the finder is inverted i e upside down and reversed from left to right Because of this it may take a few minutes to familiarize yourself with the dir...

Page 10: ...unique list of some of the most recognizable star patterns in the sky CCDObjects A custom list of many interesting galaxy pairs trios and clusters that are well suited forCCD imaging with theCPC tele...

Page 11: ...rmation downloaded from theGPS 3 The hand control will display a message reminding you to level the tripod if you already haven t done so Press ENTER to continue 4 Use the arrow buttons on the hand co...

Page 12: ...der press ENTER The display will then instruct you to center the star in the field of view of the eyepiece When the star is centered pressALIGN to accept this star as your second alignment star When t...

Page 13: ...e EQ alignments gives you the choice of performing anAutoAlign Two Star alignment One Star alignment or Solar System alignment EQAutoAlign The EQAutoAlign uses all the same time site information as th...

Page 14: ...amed Stars NamedObject Double Stars Variable Stars Asterisms andCCDObjects Selecting any one of these catalogs will display a numeric alphabetical listing of the objects under that list Pressing theUP...

Page 15: ...number 1 on the hand control is the slowest rate 5x sidereal and can be used for accurate centering of objects in the eyepiece and photographic guiding To change the speed rate of the motors Press th...

Page 16: ...by entering the R A and declination for that object Scroll to the Enter RA DEC command and press ENTER The display will then ask you to enter first the R A and then the declination of the desired obje...

Page 17: ...tions If you notice a jump when releasing the button but setting the values lower results in a pause when pressing the button go with the higher value for positive but use a lower value for negative C...

Page 18: ...acklash compensation values initial date and time longitude latitude along with slew and filter limits will be reset The hand control will ask you to press the 0 key before returning to the factory de...

Page 19: ...ection PEC PEC is designed to improve photographic quality by reducing the amplitude of the worm gear errors and improving the tracking accuracy of the drive This feature is for advanced astrophotogra...

Page 20: ...focusing knob until the image is sharp If the knob will not turn it has reached the end of its travel on the focusing mechanism Turn the knob in the opposite direction until the image is sharp Once a...

Page 21: ...e apparent field of the eyepiece supplied by the eyepiece manufacturer by the magnification In equation format the formula looks like this As you can see before determining the field of view you must...

Page 22: ...oving toward the west Motionof theStars 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 early astronomers thought but t...

Page 23: ...y bright star in the telescope s database select the AlignWedge option The telescope will then re slew to the same star 1 Center the star in the finderscope and press ENTER 2 Then accurately center th...

Page 24: ...one after any one of the previously mentioned methods has been completed To perform the declination drift method you need to choose two bright stars One should be near the eastern horizon and one due...

Page 25: ...te power PlanetaryObserving Hints Remember that atmospheric conditions are usually the limiting factor on how much planetary detail will be visible So avoid observing the planets when they are low on...

Page 26: ...ance deep sky viewing from light polluted areas by blocking unwanted light while transmitting light from certain deep sky objects You can on the other hand observe planets and stars from light pollute...

Page 27: ...models are available ShortExposurePrimeFocusPhotography Short exposure prime focus photography is the best way to begin recording celestial objects It is done with the camera attached to the telescope...

Page 28: ...for your next exposure Don t forget to take photos of varying duration and keep accurate records of what you have done Record the date telescope exposure duration eyepiece f ratio film and some commen...

Page 29: ...s ENTER You will have 5 seconds before the system starts to record The first time each observing session that PEC record or play is selected the worm gear must rotate in order to mark its starting pos...

Page 30: ...f 2 There are only a select few objects that work well at f 10 The Moon images fine because it is so bright but planets are still a bit small and should be shot at f 20 The Ring Nebula is a good candi...

Page 31: ...view 5 times larger and the object size 1 5 compared to that of f 10 see Figure 8 8 FIGURE 8 8 Telescope Standard f 10 f 2 Model Configuration Configuration 8 80 2032 mm 16 406 4 mm 9 25 93 2350 mm 1...

Page 32: ...damage the optics If dust has built up on the corrector plate remove it with a brush made of camel s hair or a can of pressurized air Spray at an angle to the lens for approximately two to four second...

Page 33: ...direction than simply repeat steps 2 through 6 as described above for the new direction FIGURE 9 3 A collimatedtelescope should appear symmetrical withthe central obstruction centered inthe star s di...

Page 34: ...T shaped assembly that attaches to the rear cell of the telescope As light from the telescope enters the guider most passes straight through to the camera A small portion however is diverted by a pris...

Page 35: ...122x Resolution Rayleigh Criterion 68 arc seconds 59 arc seconds 50 arc seconds Dawes Limit 57 arc seconds 49 arc seconds 42 arc seconds Light Gathering Power 843x 1127x 1593x Near Focus with Standard...

Page 36: ...tude star or other celestial object as perceived by an observer on Earth Arc minute A unit of angular size equal to 1 60 of a degree Arc second A unit of angular size equal to 1 3 600 of a degree or 1...

Page 37: ...celestial pole and ends at the South celestial pole and passes through the zenith If you are facing South the meridian starts from your Southern horizon and passes directly overhead to the North celes...

Page 38: ...anet U Universe The totality of astronomical things events relations and energies capable of being described objectively V VariableStar A star whose brightness varies over time due to either inherent...

Page 39: ...a Dec R34AB 12CE Scope must be aligned If command conflicts with slew limits there will be no action Get Azm Alt Z 12AB 4000 10 characters returned 12AB Azm comma 4000 Alt Get RA Dec E 34AB 12CE Scope...

Page 40: ...38 www celestron com APPENDIXD MAPSOFTIMEZONES...

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Page 42: ...40 www celestron com APPENDIXE SKYMAPS...

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Page 48: ...EclipseType Duration Location 2001 Dec 14 Annular 03m53s North America Hawaii 2001 Jun 21 Total 04m57s South Africa Madagascar 2002 Dec 04 Total 02m04s S Africa Indonesia Australia 2002 Jun 10 Annula...

Page 49: ...cted to abuse misuse mishandling or unauthorized repair Further product malfunction or deterioration due to normal wear is not covered by this warranty CELESTRON DISCLAIMSANYWARRANTIES EXPRESSOR IMPLI...

Page 50: ...ars of age and older 2835 Columbia Street Torrance CA 90503 U S A Telephone 310 328 9560 Fax 310 212 5835 FCC Statement This device complies with Part 15 of FCC Rules Operation is subject to the follo...

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