background image

15

Rarely SkyAlign will not be able to determine what three alignment objects were centered. This sometime happens when a 
bright planet or the Moon passes near one of the brighter stars. In situations like these it is best to try to avoid aligning to either 
object if possible.

For the best possible pointing accuracy, always center the alignment stars using the same final movements as the direction of the 
GoTo Approach (by default  this will be using the up  arrow button  and  the right arrow button).  Approaching the star from this 
direction when looking through the eyepiece will eliminate much of the backlash between the gears and assure the most accurate 
alignment possible.

Auto Two-Star Align

As with Sky  Align, Auto Two-Star  Align downloads  all the necessary time/site information from orbiting GPS satellites.    Once this 
information is received,  CPC will prompt you to slew the telescope and point at one known star in the sky.  The CPC now has all the 
information it needs to automatically choose a second star that will assure the best possible alignment.  Once selected the telescope will 
automatically slew to that second alignment star to complete the alignment. With the CPC set up outside with all accessories attached 
and the tripod leveled, follow the steps below to align the telescope:

1.

Once the CPC is powered on , Press ENTER to begin alignment.

2.

Use the Up and Down scroll keys (10) to select 

Auto Two-Star Align 

and press ENTER.

3.

The hand  control will display the last time and  location information that was entered or downloaded from the GPS.  Use the Up 
and  Down  buttons  to  scroll  through  the  information.  Press  ENTER  to  accept  the  downloaded  information  or  press  UNDO  to 
manually edit the information.

4.

The display will now prompt you to select a bright star from the displayed list on the hand control.  Use Up and Down buttons (6 
and 9 on the keypad) to scroll to the desired star and then press ENTER.

5.

Use the arrow buttons to slew the telescope to the star you selected. Center the star in the crosshairs of the finderscope and press 
ENTER. Finally, center the star in the eyepiece and press ALIGN.

6.

Based on this information, the CPC will automatically display the most suitable second alignment star that is above the horizon. 
Press  ENTER  to  automatically  slew  the  telescope  to  the  displayed  star.    If  for  some  reason  you  do  not  wish  to  select  this  star 
(perhaps it is behind a tree or building), you can either:

Press the UNDO button to display the next most suitable star for alignment.

Use the UP and DOWN scroll buttons to manually select any star you wish from the entire list of available stars.

Once the desired star is displayed press ENTER to automatically slew the telescope to the displayed star.  When finished slewing, the 
display  will  ask  you  to  use  the  arrow  buttons  to  align  the  selected  star  with  the  cross  hairs  in  the  center  of  the  finderscope.    Once 
centered in the finder, 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, press ALIGN  to  accept this  star as your second alignment  star. When the telescope has been aligned to both  stars the 
display will read 

Alignment Success

, and you are now ready to find your first object.

Two Star Alignment

With the two-star alignment method, the CPC requires the user to know the positions of two bright stars in order to accurately align the 
telescope with the sky and begin finding objects.  Here is an overview of the two-star alignment procedure:

1.

Once the CPC is powered on, use the Up and Down scroll keys (10) to select Two-Star Align, and press ENTER.

2.

Press  ENTER to accept the time/site information displayed on  the display, or wait until the telescope has downloaded the 
information from the GPS satellites.

3.

The SELECT STAR 1 message will appear in the top row of the display. Use the Up and Down scroll keys (10) to select the 
star you wish to use for the first alignment star. Press ENTER.

4.

CPC then  asks you to center in the eyepiece the alignment star you selected.  Use the direction arrow buttons  to slew the 

telescope to the alignment star and carefully center the star in the finderscope. Press ENTER when centered.

5.

Then, center the star in the eyepiece and press ALIGN

In  order  to  accurately  center  the  alignment  star  in  the  eyepiece,  you  may  wish  to  decrease  the  slew  rate  of  the  motors  for  fine 
centering.  This  is  done  by  pressing  the  RATE  key (11)  on  the  hand  controller  then  selecting  the number  that  corresponds  to  the 
speed you desire. (9 = fastest , 1 = slowest).

    Helpful 

Hint

Содержание 11074-XLT

Страница 1: ...I IN NS ST TR RU UC CT TI IO ON N M MA AN NU UA AL L...

Страница 2: ...7 CPC Re Alignment 18 Selecting an Object 18 Slewing to an Object 19 Finding Planets 19 Tour Mode 19 Constellation Tour 19 Direction Buttons 19 Rate Button 20 Setup Procedures 20 Tracking Mode 20 Trac...

Страница 3: ...bjects 34 Seeing Conditions 34 Transparency 34 Sky Illumination 34 Seeing 34 CELESTIAL PHOTOGRAPHY 36 Short Exposure Prime Focus Photography 36 Eyepiece Projection 37 Long Exposure Prime Focus Photogr...

Страница 4: ...lestron s legendary Schmidt Cassegrain optical systems give amateur astronomers the most sophisticated and easy to use telescopes available on the market today Take time to read through this manual be...

Страница 5: ...ng Handle 5 Eyepiece 12 Right Ascension Locking Knob 6 Finderscope 13 Tripod 7 Finderscope Quick Release Bracket 14 Accessory Tray Center Support Bracket A Hand Control Port D Auto Guider Port B Auxil...

Страница 6: ...pod and the tube should be positioned horizontal to the ground S Se et tt ti in ng g u up p t th he e T Tr ri ip po od d For maximum rigidity the Celestron heavy duty tripod has a leg support bracket...

Страница 7: ...if you plan on doing photography the tripod should be set low to ensure stability A recommended height is to set the tripod in such a manner that you can look directly into the eyepiece on the telesco...

Страница 8: ...hat both clutches are somewhat loose this will diminish the load placed on the worm gear assemblies and protect them from damage T Th he e S St ta ar r D Di ia ag go on na al l The star diagonal diver...

Страница 9: ...or visual back The CPC uses eyepieces with a standard 1 1 4 barrel diameter T Th he e F Fi in nd de er rs sc co op pe e The CPC telescope comes with an 8x50 finderscope The specifications for a finde...

Страница 10: ...out 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 between the telescope and the finder 2 Point your t...

Страница 11: ...ly see Optional Accessories section in the back of this manual 1 To power the CPC with the car battery adapter simply plug the round post into the designated 12v power outlet located on the drive base...

Страница 12: ...use a selected star or object as an alignment position 3 Direction Keys Allows complete control of the CPC in any direction Use the direction keys to move the telescope to the initial alignment stars...

Страница 13: ...g mode tracking rate and setting filter and slew limits finally the last section reviews all of the utilities functions such as PEC polar alignment and hibernating the telescope A Al li ig gn nm me en...

Страница 14: ...al stars the display will read Match Confirmed Press UNDO to display the names of the three bright objects you aligned to or press ENTER to accept these three objects for alignment You are now ready t...

Страница 15: ...lly display the most suitable second alignment star that is above the horizon Press ENTER to automatically slew the telescope to the displayed star If for some reason you do not wish to select this st...

Страница 16: ...tem Align Solar System Align is available in alt az mode scope mounted directly on the tripod and equatorial mode scope mounted on a wedge Solar System Align is designed to provide excellent tracking...

Страница 17: ...star If for some reason you do not wish to select one of these stars perhaps it is behind a tree or building you can either Press the UNDO button to display the next most suitable star for alignment U...

Страница 18: ...key 4 designated for each of the catalogs in its database There are two ways to select objects from the database scrolling through the named object lists and entering object numbers Pressing the LIST...

Страница 19: ...wish to observe Press INFO to access information on the displayed planet Press ENTER to slew to the displayed planet To allow the Sun to be displayed as an option in the database see Sun Menu in the...

Страница 20: ...lower slew rates rate 6 and below are used to center an object in the finderscope you may need to press the opposite directional button to make the telescope move in the correct direction 1 5x 6 64x 2...

Страница 21: ...objects are relative to the location of the telescope they are only valid for that exact location To save land objects once again center the desired object in the eyepiece Scroll down to the Save Lan...

Страница 22: ...e CPC s anti backlash features allows the user to compensate for backlash by inputting a value which quickly rewinds the motors just enough to eliminate the play between gears The amount of compensati...

Страница 23: ...tion of the drive control keys can be changed To reverse the button logic of the hand control press the MENU button and select Direction Buttons from the Utilities menu Use the Up Down arrow keys 10 t...

Страница 24: ...the Sun go to the Sun Menu and press ENTER The Sun will now be displayed in the Planets catalog as can be used as an alignment object when using the Solar System Alignment method To remove the Sun fr...

Страница 25: ...SETTING USER OBJECTS GET RA DEC GOTO RA DEC IDENTIFY VERSION GET AXIS POSITION GPS LINKING SELECT STAR 1 SELECT STAR 2 CENTER STAR 1 CENTER STAR 2 ONE STAR ALIGNMENT SOLAR SYSTEM ALIGNMENT EQ NORTH A...

Страница 26: ...finest anti reflection characteristics Inside the optical tube a black tube extends out from the center hole in the primary mirror This is the primary baffle tube and it prevents stray light from pas...

Страница 27: ...of the object you are observing To calculate the actual field of view divide the apparent field of the eyepiece supplied by the eyepiece manufacturer by the magnification In equation format the formu...

Страница 28: ...ion or DEC for short Lines of 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 Declinatio...

Страница 29: ...never rise and never 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 t...

Страница 30: ...the telescope to any bright star in its Named Star database list This will be the star used for the All Star Polar Alignment For best results it is always good to choose a polar alignment star that is...

Страница 31: ...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...

Страница 32: ...he eyepiece points straight up Insert the cross hair eyepiece and align the cross hairs so that one is parallel to the declination axis and the other is parallel to the right ascension axis Move your...

Страница 33: ...even at high magnifications Lunar Observing Hints To increase contrast and bring out detail on the lunar surface use filters A yellow filter works well at improving contrast while a neutral density o...

Страница 34: ...mpossible to observe Light Pollution Reduction filters help reduce the background sky brightness thus increasing contrast S Se ee ei in ng g C Co on nd di it ti io on ns s Viewing conditions affect wh...

Страница 35: ...er good seeing conditions fine detail is visible on the brighter planets like Jupiter and Mars and stars are pinpoint images Under poor seeing conditions images are blurred and stars appear as blobs T...

Страница 36: ...gyback photography If you can t find a new camera you can purchase a used camera body that is not 100 percent functional The light meter for example does not have to be operational since you will be d...

Страница 37: ...ich attaches to the visual back and a T ring for your particular camera make i e Minolta Nikon Pentax etc Because of the high magnifications during eyepiece projection the field of view is quite small...

Страница 38: ...last form of celestial photography to be attempted after others have been mastered It is intended primarily for deep sky objects that is objects outside our solar system which includes star clusters...

Страница 39: ...ll telescope drives have some periodic error Using Periodic Error Correction Once the telescope has been polar aligned using the EQ North Align or EQ South for southern hemisphere method select PEC fr...

Страница 40: ...opular choices Ektar 125 color print Fujichrome 100D color slide Tech Pan gas hypered black and white print T Max 400 black and white print There is no exposure determination table to help you get sta...

Страница 41: ...mulate Ten exposures at 15 seconds each will yield a nice image and is short enough that you may not need to guide the exposure at all For f 6 3 imaging the optional Reducer Corrector is needed See Op...

Страница 42: ...ould be placed over the opening when not in use This will prevent contaminants from entering the optical tube Internal adjustments and cleaning should be done only by the Celestron repair department I...

Страница 43: ...ger is positioned exactly between two of the collimation screws then you will need to adjust the screw opposite where your finger is located 4 Use the hand control buttons to move the de focused star...

Страница 44: ...gh and low magnifications 70 field of view for high and low magnifications and extendable twist up eyecups Good for eyeglass wearers Available in the following focal lengths 5mm 8mm 13mm 17mm 22mm and...

Страница 45: ...Maps 93722 Celestron Sky Maps are the ideal teaching guide for learning the night sky You wouldn t set off on a road trip without a road map and you don t need to try to navigate the night sky withou...

Страница 46: ...Eyepiece 35mm Camera 9 1 x 68 78 9 x 6 65 72 x 50 Linear Field of View at 1000 yds 47 ft 41 ft 34 5 ft Optical Tube Length 17 22 23 Weight of Telescope 42 lbs 58 lbs 65 lbs Weight of Tripod 19 lbs 19...

Страница 47: ...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...

Страница 48: ...hough 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 Mi...

Страница 49: ...cle between full and new when its illuminated portion is decreasing Waxing Moon The period of the moon s cycle between new and full when its illuminated portion is increasing Z Zenith The point on the...

Страница 50: ...s with slew limits there will be no action Goto Ra 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 12A...

Страница 51: ...51 APPENDIX F MAPS OF TIME ZONES...

Страница 52: ...52...

Страница 53: ...53...

Страница 54: ...54...

Страница 55: ...55...

Страница 56: ...56...

Страница 57: ...57...

Страница 58: ...58...

Страница 59: ...s of meteors per hour Solar Eclipses in North America plus Total Eclipses Around the World Date Eclipse Type Duration Location 2001 Dec 14 Annular 03m53s North America Hawaii 2001 Jun 21 Total 04m57s...

Страница 60: ...dling 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 MERCHANTAB...

Страница 61: ...et Torrance CA 90503 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 obligation...

Отзывы: