Celestron 11086 Instruction Manual Download Page 57

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Appendix A – Technical Specifications

CGE Pro Series

11086

11087

11088

11089

CGE Pro 925

CGE Pro 1100

CGE Pro 1400

CGE Pro 1400 Fastar

Specifications:

Optical Design

235mm (9.25") Schmidt-

Cassegrain

280mm (11") Schmidt-

Cassegrain

356mm (14") Schmidt-

Cassegrain

356mm (14") Schmidt-

Cassegrain

Focal Length

2350mm F/10

2800mm F/10

3910mm F/11

Finderscope

6x30

9x50

Mount

CGE Pro Computerized

Equatorial

CGE Pro Computerized

Equatorial

CGE Pro Computerized

Equatorial

CGE Pro Computerized

Equatorial

Eyepiece

25mm Plossl (94x)

40mm Plossl (70x)

40mm Plossl (98x)

Star Diagonal

1.25"

2" w/1.25" adapter

Accessory tray

Yes

Tripod

2.75" Stainless Steel

Technical Specs

Highest Useful Magnication

555x

660x

840x

Lowest Useful Magnification

34x

40x

51x

Limiting Stellar Magnitude

14.4

14.7

15.3

Resolution: Rayleigh

.59 arc seconds

.50 arc seconds

.39 arc seconds

Dawes Limit

.49 arc seconds

.42 arc seconds

.33 arc seconds

Light Gathering Power

1127x unaided eye

1593x unaided eye

2579x unaided eye

Field of View: standard eyepiece

.55º

.61º

.53º

Linear FOV (@1000 yds)

29 ft.

32 ft.

28 ft.

Optical Coatings - Standard

Starbright XLT Coating

Secondary Mirror Obstruction

3.35"

3.75"

4.5"

by Area

13%

12%

10%

by Diameter

36%

34%

32%

Optical tube length

22 inches

24 inches

31 inches

Telescope Weight

176 lbs

204 lbs

243lbs

CGE Pro Mount

Additional Specifications

Hand Control

Double line, 16 character Liquid Crystal Display; 19 fiber optic backlit LED buttons

Motor: Type

DC Servo motors with encoders, both axes

Max Slew Speed

5.5º/second

Hand Control Ports

RS-232 communication port on hand control

Motor Ports

Aux Port, Autoguide Ports

Tracking Rates

Sidereal, Solar and Lunar

Tracking Modes

EQ North & EQ South

Alignment Procedures

2-Star Align, 1-Star Align, Solar System Align, Quick Align, Last Align

Database

40,000+ objects, 400 user defined programmable objects.
Enhanced information on over 200 objects

Complete Revised NGC Catalog

7,840

Complete Messier Catalog

110

Complete IC Catalog

5,386

Complete Caldwell

109

Abell Galaxies

2,712

Solar System objects

Famous Asterisms

Selected CCD Imaging Objects

Selected SAO Stars

29,500

Total Object Database

45,492

Summary of Contents for 11086

Page 1: ...C CG GE E P Pr ro o S Se er ri ie es s INSTRUCTION MANUAL C CG GE E P Pr ro o 9 92 25 5 C CG GE E P Pr ro o 1 11 10 00 0 C CG GE E P Pr ro o 1 14 40 00 0...

Page 2: ...Mount in Azimuth 15 Attaching the Hand Control Holder 16 Powering the Telescope 16 HAND CONTROL 17 Hand Control Operation 18 Alignment Procedures 18 Startup Procedure 19 Two Star Align 20 East West Fi...

Page 3: ...he Moon 41 Lunar Observing Hints 41 Observing the Planets 41 Observing the Sun 41 Solar Observing Hints 42 Observing Deep Sky Objects 42 Seeing Conditions 42 Transparency 42 Sky Illumination 42 Seeing...

Page 4: ...legendary Schmidt Cassegrain optical system to give amateur astronomers the most sophisticated and easy to use telescopes available on the market today Take time to read through this manual before em...

Page 5: ...Equatorial Mount 11 Counterweight Bar 5 Azimuth Adjustment Knob 12 RA DEC clutch knobs 6 Electronics Pier 13 Dovetail Mounting Bar 7 Hand Control 14 Schmidt Corrector Lens CONTROL PANEL C Hand Contro...

Page 6: ...stron CGE Pro Series telescopes are shipped in three main boxes plus counterweights In separate boxes are the following Optical Tube Assembly and Standard Accessories Equatorial Mount with Hand Contro...

Page 7: ...bottom of the pier over the tripod head 3 Rotate the column until the three holes line up with the threaded holes on the side of the tripod head The pier should be positioned so that the motor ports l...

Page 8: ...e the two cut outs on the side plates 6 Once seated attach the two bolts connecting the polar housing to the side plates 7 Reattach the latitude indicator from the polar housing 8 Rotate the latitude...

Page 9: ...rely in place you are ready to attach the counterweight Since the fully assembled telescope can be quite heavy position the mount so that the polar axis is pointing towards north before the tube assem...

Page 10: ...ope tube into the mounting platform of the mount Slide the telescope so that the back of the dovetail bar is close to the back of the mounting platform 5 Tighten the mounting screw on the side of the...

Page 11: ...hrome portion of the eyepiece into the star diagonal 3 Tighten the set screw on the star diagonal to hold the eyepiece in place To remove the eyepiece loosen the set screw on the star diagonal and sli...

Page 12: ...umbscrews until snug I In ns st ta al ll li in ng g t th he e C CG GE E P Pr ro o 1 11 10 00 0 1 14 40 00 0 F Fi in nd de er rs sc co op pe e The CGE Pro 1100 and 1400 telescope comes with a 9x50 find...

Page 13: ...easier to locate objects in the telescope without the finder To align the finder 1 Choose a conspicuous object that is in excess of one mile away This will eliminate any possible parallax effect betw...

Page 14: ...d be slightly imbalanced to the counterweight bar side And when the tube is on the east side of the mount there should be a slight imbalance toward the telescope side This is done so that the worm gea...

Page 15: ...u must first slightly loosen both the latitude pivot knobs and azimuth pivot knobs See Fig 2 16 Adjusting the Mount in Latitude To increase raise the latitude of the polar axis turn the rear latitude...

Page 16: ...g any other adapter may damage the electronics or cause the telescope not to operate properly and will void your manufacturer s warranty 1 To power the telescope with the car battery adapter or option...

Page 17: ...ndividual components of the computerized hand controller 1 Liquid Crystal Display LCD Window Has a dual line 16 character display screen that is backlit for comfortable viewing of telescope informatio...

Page 18: ...lows you to select any of the telescope s functions and accept entered parameters 8 Undo Undo will take you out of the current menu and display the previous level of the menu path Press Undo repeatedl...

Page 19: ...mory so that it will be automatically displayed the next time an alignment is done Alternatively if you know the exact longitude and latitude of your observing site it can be entered directly into the...

Page 20: ...ts between the telescope optics and the mount Therefore it is usually a good idea to add at least one additional calibration star to improve the telescope s pointing accuracy 5 Press ENTER to select a...

Page 21: ...display The Sun can be removed from the display by using the same procedure as above To improve the telescope pointing accuracy you can use the Re Align feature as described below Q Qu ui ic ck k A Al...

Page 22: ...layed press the ALIGN key on the hand control to select Alignment Stars from the list of options 5 The display will then ask you which alignment star you want to replace Use the UP and Down scroll key...

Page 23: ...lanet Tour Mode The telescopes include a tour feature which automatically allows the user to choose from a list of interesting objects based on the date and time in which you are observing The automat...

Page 24: ...The direction that a star moves in the eyepiece when a direction is pressed will change depending on which side of the Meridian the telescope tube is positioned In order to change the direction of th...

Page 25: ...pe stores celestial objects to its database by saving its right ascension and declination in the sky This way the same object can be found each time the telescope is aligned Once a desired object is c...

Page 26: ...and CCD imaging Precise Goto automatically searches out the closest bright star to the desired object and asks the user to carefully center it in the eyepiece The hand control then calculates the smal...

Page 27: ...the maximum altitude limit to 90 and the minimum limit to 90 This will display every object in the database lists regardless of whether it is visible in the sky from your location Direction Buttons Th...

Page 28: ...to stay on its current side of the Meridian when slewing to objects that are as far as 10 degrees beyond your Meridian Favor West If the target object is accessible from both sides of the mount selec...

Page 29: ...40 to 20 to define the slew limit when the tube is on the west side of the mount Disable Limits This disables any pre defined values that have been entered and allows the mount to track the maximum am...

Page 30: ...ing Version Selecting this option will allow you to see the current version number of the hand control and motor control The first set of numbers indicate the hand control software version For the mot...

Page 31: ...will need to turn the GPS on the first time you use the accessory If you want to use the telescope s database to find the coordinates of a celestial object for a future or past dates you would need t...

Page 32: ...TION TURN ON OFF GPS PEC USER OBJECTS IDENTIFY GOTO RA DEC GET RA DEC PRECISE GOTO GOTO SKY OBJECT SAVE SKY OBJECT SAVE DB OBJECT ENTER RA DEC GOTO LAND OBJECT SAVE LAND OBJECT TURN ON OFF RTC MOVE TO...

Page 33: ...able The Schmidt Cassegrain system consists of a zero power corrector plate a spherical primary mirror and a secondary mirror Once light rays enter the optical system they travel the length of the opt...

Page 34: ...the telescope by the focal length of the eyepiece used In equation format the formula looks like this Focal Length of Telescope mm Magnification Focal Length of Eyepiece mm Let s say for example you...

Page 35: ...cases you may actually see a double image Never look across or over objects that are producing heat waves This includes asphalt parking lots on hot summer days or building rooftops Hazy skies fog and...

Page 36: ...declination are named for their angular distance above and below the celestial equator The lines are broken down into degrees minutes of arc and seconds of arc Declination readings south of the equato...

Page 37: ...ever set You will never see the stars complete one circle because the sunlight during the day washes out the starlight However part of this circular motion of stars in this region of the sky can be se...

Page 38: ...le The north celestial pole is the point in the northern hemisphere around which all stars appear to rotate The counterpart in the southern hemisphere is referred to as the south celestial pole Polar...

Page 39: ...least one additional calibration star slew the telescope to any bright star in its Named Star database list For best results choose a polar alignment star that is high in the sky and near the Meridia...

Page 40: ...a to align on at least one additional calibration star located on the opposite side of the Meridian To add calibration stars 1 Slew the telescope to a bright star on the opposite of the Meridian from...

Page 41: ...an see Venus go through its lunar like phases Mars can reveal a host of surface detail and one if not both of its polar caps You will be able to see the cloud belts of Jupiter and the great Red Spot i...

Page 42: ...y skies absorb more light than clear skies making fainter objects harder to see and reducing contrast on brighter objects Aerosols ejected into the upper atmosphere from volcanic eruptions also affect...

Page 43: ...directly affect image quality These drawings represent a point source i e star under bad seeing conditions left to excellent conditions right Most often seeing conditions produce images that lie some...

Page 44: ...hen operating in the time exposure mode Olympus Nikon Minolta Pentax Canon and others have made such camera bodies The camera must have interchangeable lenses so you can attach it to the telescope and...

Page 45: ...intensity and to increase contrast Keep accurate records of your exposures This information is useful if you want to repeat your results or if you want to submit some of your photos to various astrono...

Page 46: ...the exposure 1 Find and center the desired target in the viewfinder of your camera 2 Turn the focus knob until the image is as sharp as possible 3 Place the black card over the front of the telescope...

Page 47: ...f axis guider called the Radial Guider 94176 In addition you will need a T Ring to attach your camera to the Radial Guider Other equipment needs include a guiding eyepiece Unlike other forms of astrop...

Page 48: ...riate guide rate rate 1 5x rate 2 1x and practice centering the guide star in the cross hairs for several minutes This will help you familiarize yourself with the periodic error of the drive and the o...

Page 49: ...se vibrations producing blurred photos To reduce vibration when tripping the shutter use a cable release A cable release keeps your hands clear of the camera and lens thus eliminating the possibility...

Page 50: ...69 1764mm C14 154 3910mm 98 2488mm Auto Guiding The CGE PRO mount has a designated auto guiding port for use with a CCD autoguider The diagram below may be useful when connecting the CCD camera cable...

Page 51: ...y pointing the telescope at the ground until the dew has evaporated If moisture condenses on the inside of the corrector remove the accessories from the rear cell of the telescope Place the telescope...

Page 52: ...t to touch the corrector plate pointing towards the collimation screws The shadow of your finger should be visible when looking into the eyepiece Rotate your finger around the tube edge until its shad...

Page 53: ...t steps 2 through 6 as described above for the new direction Perfect collimation will yield a star image very symmetrical just inside and outside of focus In addition perfect collimation delivers the...

Page 54: ...ield 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 X Cel This 6 element design allows each X Cel Eyep...

Page 55: ...with the C9 25 Polarizing Filter Set 93608 The polarizing filter set limits the transmission of light to a specific plane thus increasing contrast between various objects This is used primarily for te...

Page 56: ...ilter is minimal Solar Filter The Baader AstroSolar filter is a safe and durable filter that covers the front opening of the telescope View sunspots and other solar features using this double sided me...

Page 57: ...eye 1593x unaided eye 2579x unaided eye 2579x unaided eye Field of View standard eyepiece 55 61 53 53 Linear FOV 1000 yds 29 ft 32 ft 28 ft 28 ft Optical Coatings Standard Starbright XLT Coating Star...

Page 58: ...asured from due north between the astronomical meridian the vertical line passing through the center of the sky and the north and south points on the horizon and the vertical line containing the celes...

Page 59: ...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 T...

Page 60: ...ing Moon The period of the moon s cycle between new and full when its illuminated portion is increasing Z Zenith The point on the Celestial Sphere directly above the observer Zodiac The zodiac is the...

Page 61: ...nd 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 must be aligned Cancel Goto M Is Goto in Progr...

Page 62: ...oto Command Through RS232 To The Hand Control note Only valid for motorcontrol version 4 1 or greater 1 Convert the angle position to a 24bit number Example if the desired position is 220 then POSITIO...

Page 63: ...63 APPENDIX D MAPS OF TIME ZONES...

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Page 71: ...g 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 MERCHANTABILIT...

Page 72: ...Torrance CA 90503 U S A Tel 310 328 9560 Fax 310 212 5835 Web site at http www celestron com Copyright 2009 Celestron All rights reserved Products or instructions may change without notice or obligati...

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