Celestron CPC 800 GPS XLT Computerized Telescope Instruction Manual
Celestron CPC 800 GPS XLT Computerized Telescope Manual
View all Celestron CPC 800 GPS XLT Computerized Telescope manuals
Add to My Manuals
Save this manual to your list of manuals |
Celestron CPC 800 GPS XLT Computerized Telescope manual content summary:
- Celestron CPC 800 GPS XLT Computerized Telescope | Instruction Manual - Page 1
INSTRUCTION MANUAL - Celestron CPC 800 GPS XLT Computerized Telescope | Instruction Manual - Page 2
Align ...16 Solar System Align...16 EQ North / EQ South Alignment...17 CPC Re-Alignment ...18 Selecting an Object...18 Slewing to an Object ...19 Finding Approach ...24 Autoguide Rates ...24 Cordwrap...24 Utility Features ...24 GPS On/Off...24 Wedge Align ...24 Periodic Error Correction ...24 Light - Celestron CPC 800 GPS XLT Computerized Telescope | Instruction Manual - Page 3
Periodic Error Correction...41 Terrestrial Photography...42 Metering ...42 Reducing Vibration ...42 F/6.3 with Reducer/Corrector...42 Auto Guiding...43 TELESCOPE MAINTENANCE ...44 Care and Cleaning of the Optics ...44 Collimation...44 OPTIONAL ACCESSORIES...46 APPENDIX A - TECHNICAL SPECIFICATIONS - Celestron CPC 800 GPS XLT Computerized Telescope | Instruction Manual - Page 4
the Celestron CPC telescope! The CPC GPS ushers in the next generation of computer automated telescopes. The CPC series uses GPS (Global CPC, so you should keep this manual handy until you have fully mastered your telescope's operation. The CPC hand control has built-in instructions to guide - Celestron CPC 800 GPS XLT Computerized Telescope | Instruction Manual - Page 5
in one reusable shipping carton while the tripod comes in its own box. Included with your CPC are 1 Control Panel (see below) 2 Focus Knob 3 Star Diagonal 4 Hand Control Ascension Locking Knob 13 Tripod 14 Accessory Tray / Center Support Bracket D Auto Guider Port E On/Off Switch 5 F 12v Input Jack - Celestron CPC 800 GPS XLT Computerized Telescope | Instruction Manual - Page 6
Telescope Control Software w/ RS-232 cable Assembling the CPC Start by removing the telescope and tripod from their shipping cartons and set the telescopes vibration and flexure. However, the tripod must be shipped with the leg support bracket detached so the tripod legs can collapse. To set up the - Celestron CPC 800 GPS XLT Computerized Telescope | Instruction Manual - Page 7
CPC telescope is adjustable. There is a bubble level located on the top of the tripod head to assist you in leveling the tripod. To adjust the height at which the tripod stands: Tripod Head Center Support For casual observing, this may not pose a problem. However, if you plan on doing photography, - Celestron CPC 800 GPS XLT Computerized Telescope | Instruction Manual - Page 8
three bolts. You are now ready to attach the visual accessories onto the telescope optical tube. Adjusting the Clutches The CPC has a dual axis clutch system. This allows you to move the telescope manually even when the telescope is not powered on. However, both clutches need to be tightened down - Celestron CPC 800 GPS XLT Computerized Telescope | Instruction Manual - Page 9
diameter is the diameter of the barrel that slides into the star diagonal or visual back. The CPC uses eyepieces with a standard 1-1/4" barrel diameter. The Finderscope The CPC telescope comes with an 8x50 finderscope. The specifications for a finderscope stand for the magnification and the aperture - Celestron CPC 800 GPS XLT Computerized Telescope | Instruction Manual - Page 10
order to protect your CPC telescope during shipping, the hand control unit has been packaged along with the other telescope accessories and will need outlet located on the top of the drive base (see figure 3-10). Your telescope also comes with a hand control holder that must be attached to the fork - Celestron CPC 800 GPS XLT Computerized Telescope | Instruction Manual - Page 11
can be powered by the supplied 12v car battery adapter or optional power supply (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. 2. Turn on the - Celestron CPC 800 GPS XLT Computerized Telescope | Instruction Manual - Page 12
Crystal Display (LCD) Window: Has a dual-line, 16 character display screen that is backlit for comfortable viewing of telescope information and scrolling text. 2. Align: Instructs the CPC to use a selected star or object as an alignment position. 3. Direction Keys: Allows complete control of the - Celestron CPC 800 GPS XLT Computerized Telescope | Instruction Manual - Page 13
reviews all of the utilities functions such as PEC, polar alignment and hibernating the telescope. Alignment Procedures In order for the CPC the CPC will automatically select and slew to a second star for alignment. Two-Star Alignment requires the user to identify and manually slew the telescope to - Celestron CPC 800 GPS XLT Computerized Telescope | Instruction Manual - Page 14
manually updating the time/site information. Press ENTER to accept the time/site information downloaded the GPS. GPS: The CPC uses an on-board GPS to take the guesswork out of aligning your telescope with the sky. Once an alignment method is selected, the CPC automatically initiates the internal GPS - Celestron CPC 800 GPS XLT Computerized Telescope | Instruction Manual - Page 15
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 - Celestron CPC 800 GPS XLT Computerized Telescope | Instruction Manual - Page 16
Helpful Hint 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 - Celestron CPC 800 GPS XLT Computerized Telescope | Instruction Manual - Page 17
displayed on the display, or wait until the telescope has downloaded the information from the GPS satellites. 3. The SELECT OBJECT message will appear UP and DOWN scroll buttons to manually select any star you wish from the entire list of available stars. 7. CPC then asks you to center in - Celestron CPC 800 GPS XLT Computerized Telescope | Instruction Manual - Page 18
an actual object. 6. Press ALIGN to make the change. Selecting an Object Helpful Hint Now that the telescope is properly aligned, you can choose an object from any of the catalogs in the CPC's extensive database. The hand control has a key (4) designated for each of the catalogs in its database - Celestron CPC 800 GPS XLT Computerized Telescope | Instruction Manual - Page 19
coordinates of the object. Caution: Never slew the telescope when someone is looking into the eyepiece. The telescope can move at fast slew speeds and may hit an observer in the eye. If you manually enter an object that is below the horizon, CPC will notify you by displaying a message reminding you - Celestron CPC 800 GPS XLT Computerized Telescope | Instruction Manual - Page 20
and can be used for accurate centering of objects in the eyepiece and photographic guiding. To change the speed rate of the motors: • Press the RATE key to change the way the telescope tracks depending on the type of mount being used to support the telescope. The CPC has three different tracking - Celestron CPC 800 GPS XLT Computerized Telescope | Instruction Manual - Page 21
so that the telescope never moves. Tracking Rate In addition to being able to move the telescope with the hand control buttons, the CPC will continually it is linking with the GPS. Once current information has been received, it will update the displayed information. If GPS is switched off, the hand - Celestron CPC 800 GPS XLT Computerized Telescope | Instruction Manual - Page 22
the number of the object you wish to select and press ENTER. CPC will automatically retrieve and display the coordinates before slewing to the object. to the objects you are currently observing. For example, if your telescope is pointed at the brightest star in the constellation Lyra, choosing - Celestron CPC 800 GPS XLT Computerized Telescope | Instruction Manual - Page 23
photographic guiding. Positive telescope will slew to the horizon while on a wedge, you must set the minimum slew limit to equal your latitude minus 90°. Filter Limits - When an alignment is complete, the CPC than 20º. If you manually enter an object that is RATE CORDWRAP UTILITIES GPS ON/OFF - Celestron CPC 800 GPS XLT Computerized Telescope | Instruction Manual - Page 24
module. When aligning the telescope, the CPC still receives information, such as current time, from the GPS. If you want to use the CPC database to find the coordinates of a celestial object for a future date you would need to turn the GPS module off in order to manually enter a date and time other - Celestron CPC 800 GPS XLT Computerized Telescope | Instruction Manual - Page 25
in Hibernate mode: 1. Select Hibernate from the Utility Menu. 2. Move the telescope to a desire position and press ENTER. 3. Power off the telescope. Remember to never move your telescope manually while in Hibernate mode. Once the telescope is powered on again the display will read Wake Up. After - Celestron CPC 800 GPS XLT Computerized Telescope | Instruction Manual - Page 26
1 SELECT STAR 2 CENTER STAR 2 ONE-STAR ALIGNMENT GPS LINKING... Select Star 1 Center Star 1 SOLAR SYSTEM ALIGN GPS LINKING... Select Object Center Object EQ ALIGNMENT GPS LINKING... EQ AUTOALIGN EQ TWO-STAR ALIGN EQ ONE-STAR ALIGN EQ SOLAR SYSTEM ALIGN CPC Menu Tree: The following figure is a menu - Celestron CPC 800 GPS XLT Computerized Telescope | Instruction Manual - Page 27
unaided eye Reversed from left to right, as viewed with a Star Diagonal Inverted image, as viewed with the eyepiece directly in telescope Focusing Figure 5-2 The CPC's focusing mechanism controls the primary mirror which is mounted on a ring that slides back and forth on the primary baffle tube - Celestron CPC 800 GPS XLT Computerized Telescope | Instruction Manual - Page 28
you can go right through focus without seeing the image. To avoid this problem, your first astronomical target should be a bright object (like the Moon or every inch of aperture which is 160 to 280 times for the CPC 8 telescope. Determining Field of View Determining the field of view is important - Celestron CPC 800 GPS XLT Computerized Telescope | Instruction Manual - Page 29
. • If you wear corrective lenses (specifically glasses), you may want to remove them when observing with an eyepiece attached to the telescope. When using a camera, however, you should always wear corrective lenses to ensure the sharpest possible focus. If you have astigmatism, corrective - Celestron CPC 800 GPS XLT Computerized Telescope | Instruction Manual - Page 30
Up to this point, this manual covered the assembly and basic operation of your CPC telescope. However, to understand your telescope more thoroughly, you need to know a little about the night sky. This section deals with observational astronomy in general and includes information on the night - Celestron CPC 800 GPS XLT Computerized Telescope | Instruction Manual - Page 31
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 early astronomers thought, but the result of the Earth's rotation. The Earth's rotation also causes the stars to do the same, scribing out a large - Celestron CPC 800 GPS XLT Computerized Telescope | Instruction Manual - Page 32
in order to do long exposure astrophotography. To do an accurate polar alignment, the CPC requires an optional equatorial wedge between the telescope and the tripod. This allows the telescope's tracking motors to rotate the telescope around the celestial pole, the same way as the stars. Without the - Celestron CPC 800 GPS XLT Computerized Telescope | Instruction Manual - Page 33
the cross hairs so that one is parallel to the declination axis and the other is parallel to the right ascension axis. Move your telescope manually in R.A. and DEC to check parallelism. First, choose your star near where the celestial equator and the meridian meet. The star should be approximately - Celestron CPC 800 GPS XLT Computerized Telescope | Instruction Manual - Page 34
so slightly. So, repeat the process again to improve the accuracy checking both axes for minimal drift. Once the drift has been eliminated, the telescope is very accurately aligned. You can now do prime focus deep-sky astrophotography for long periods. NOTE: If the eastern horizon is blocked, you - Celestron CPC 800 GPS XLT Computerized Telescope | Instruction Manual - Page 35
With your telescope set up, you are ready to use it for observing. This to higher power (magnification) to focus in on a smaller area. Choose the lunar tracking rate from the CPC's MENU tracking rate options to keep the moon centered in the eyepiece even at high magnifications. Lunar Observing - Celestron CPC 800 GPS XLT Computerized Telescope | Instruction Manual - Page 36
To center the Sun without looking into the eyepiece, watch the shadow of the telescope tube until it forms a circular shadow. • To ensure accurate tracking, be airglow, and light pollution greatly affect transparency. While not a problem for the brighter stars and planets, bright skies reduce the - Celestron CPC 800 GPS XLT Computerized Telescope | Instruction Manual - Page 37
Seeing Seeing conditions refers to the stability of the atmosphere and directly affects the amount of fine detail seen in extended objects. The air in our atmosphere acts as a lens which bends and distorts incoming light rays. The amount of bending depends on air density. Varying temperature layers - Celestron CPC 800 GPS XLT Computerized Telescope | Instruction Manual - Page 38
type of 35mm camera on the market today. Second, the "B" or manual setting should NOT run off the battery. Many new electronic cameras use • Ektar 25 or 100 2. Center the Moon in the field of your CPC telescope. 3. Focus the telescope by turning the focus knob until the image is sharp. 4. Set the - Celestron CPC 800 GPS XLT Computerized Telescope | Instruction Manual - Page 39
exposure times when photographing the Moon at the prime focus of your CPC telescope. The exposure times listed in table 8-1 should be used as a you to get the object in the telescope's field based on the finder's view alone. Another problem introduced by the high magnification is vibration. - Celestron CPC 800 GPS XLT Computerized Telescope | Instruction Manual - Page 40
ocular with an illuminated reticle to monitor your guide star. For this purpose, Celestron offers the Micro Guide Eyepiece (#94171) Here is a brief summary of the technique. 1. Polar align the telescope using an optional equatorial wedge. To polar align the CPC you must select EQ North Align (or EO - Celestron CPC 800 GPS XLT Computerized Telescope | Instruction Manual - Page 41
errors. Using the PEC function is a three-step process. First, the CPC needs to know the current position of its worm gear so that it has Insert a high power eyepiece with illuminated cross hairs into your telescope. Orient the guiding eyepiece cross hairs so that one is parallel to the declination - Celestron CPC 800 GPS XLT Computerized Telescope | Instruction Manual - Page 42
CPC makes an excellent telephoto lens for terrestrial (land) photography. Terrestrial photography is best done will the telescope manual for specific information on metering and changing shutter speeds. Reducing Vibration Releasing the shutter manually need to guide the exposure at all. For f/6.3 imaging - Celestron CPC 800 GPS XLT Computerized Telescope | Instruction Manual - Page 43
conditions. For every 10 exposures you might save 1. To image at f/20 you need to purchase a 2x Barlow and a T-adapter or Radial Guider. Auto Guiding The CPC has a designated auto guiding port for use with a CCD autoguider. The diagram below may be useful when connecting the CCD camera cable to the - Celestron CPC 800 GPS XLT Computerized Telescope | Instruction Manual - Page 44
performance of your CPC telescope is directly related to its collimation, that is the alignment of its optical system. Your CPC was collimated at is on so that you won't have to manually track the star. Or, if you do not want to power up your telescope, you can use Polaris. Its position relative - Celestron CPC 800 GPS XLT Computerized Telescope | Instruction Manual - Page 45
de-focused star and notice in which direction the central shadow is skewed. 2. Place your finger along the edge of the front cell of the telescope (be careful not to touch the corrector plate), pointing towards the collimation screws. The shadow of your finger should be visible when looking into - Celestron CPC 800 GPS XLT Computerized Telescope | Instruction Manual - Page 46
This accessory is an Amici prism arrangement that allows you to look into the telescope at a 45° angle with images that are oriented properly (upright and correct cordless. The micro guide eyepiece produces 224 power when used with the CPC 11 at f/10 and 163 power with the CPC 8. Filters, Eyepiece - Celestron CPC 800 GPS XLT Computerized Telescope | Instruction Manual - Page 47
allowing you to look at guide stars on-axis. This accessory works especially well with the Reducer/Corrector. Reducer/Corrector (#94175) - This lens reduces the focal length of the telescope by 37%, making your CPC 11 a 1764mm f/6.3 instrument and the CPC 800 a 1280mm f/6.3 instrument. In addition - Celestron CPC 800 GPS XLT Computerized Telescope | Instruction Manual - Page 48
Field of View: Standard Eyepiece : 35mm Camera Linear Field of View (at 1000 yds) Optical Tube Length Weight of Telescope Weight of Tripod CPC 800 - #11073 Schmidt-Cassegrain Catadioptric 8" (203.2mm) 2032mm 10 Fine Annealed Pyrex Starbright Coatings - 5 step multilayer process Optional:Starbright - Celestron CPC 800 GPS XLT Computerized Telescope | Instruction Manual - Page 49
Earth, concentric with the Earth's center. The act of putting a telescope's optics into perfect alignment. The angular distance of a celestial body as "the apparent yearly path of the Sun against the stars". A telescope mounting in which the instrument is set upon an axis which is parallel to - Celestron CPC 800 GPS XLT Computerized Telescope | Instruction Manual - Page 50
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. A telescope in which the light is collected by means of a mirror. The minimum detectable angle an optical system can detect. Because of diffraction, there is a limit - Celestron CPC 800 GPS XLT Computerized Telescope | Instruction Manual - Page 51
T Terminator U Universe V Variable Star W Waning Moon Waxing Moon Z Zenith Zodiac telescope at this rate. The rate is 15 arc seconds per second or 15 degrees per hour. The boundary line between the light and dark portion - Celestron CPC 800 GPS XLT Computerized Telescope | Instruction Manual - Page 52
APPENDIX C LONGITUDES AND LATITUDES LONGITUDE degrees min ALABAMA Anniston 85 51 Auburn 85 26.4 Birmingham 86 45 Centreville 87 15 Dothan 85 27 Fort Rucker 85 43.2 Gadsden 86 5.4 Huntsville 86 46.2 Maxwell AFB 86 22.2 Mobile 88 15 Mobile Aeros 88 4.2 Montgomery - Celestron CPC 800 GPS XLT Computerized Telescope | Instruction Manual - Page 53
LONGITUDE degrees min Melbourne 80 37.8 Miami 80 16.8 Naples 81 4.8 Nasa Shuttle 80 40.8 Orlando 81 19.2 Panama City 85 40.8 Patrick AFB 80 3.6 Pensacola 87 19.2 Ruskin 82 3.6 Saint Peters 82 40.8 Sanford 81 15 Sarasota 82 33 Tallahassee 84 22.2 Tampa Intl - Celestron CPC 800 GPS XLT Computerized Telescope | Instruction Manual - Page 54
LONGITUDE degrees min Wurtsmith 83 2.4 Ypsilanti 83 31.8 MINNESOTA Albert Lea 93 22.2 Alexandria 95 22.8 Bemidji Muni 94 55.8 Brainerd-Crw 94 7.8 Detroit Laks 95 52.8 Duluth 92 10.8 Ely 91 49.2 Fairmont 94 25.2 Fergus Falls 96 4.2 Grand Rapids 93 31.2 Hibbing - Celestron CPC 800 GPS XLT Computerized Telescope | Instruction Manual - Page 55
LONGITUDE degrees min OKLAHOMA Altus AFB 99 16.2 Ardmore 97 1.2 Bartlesville 96 0 Clinton 99 1.2 Enid 97 4.8 Fort Sill 98 2.4 Gage 99 46.2 Hobart 99 3 Lawton 98 25.2 Mcalester 95 46.8 Norman 97 28.2 Oklahoma 97 3.6 Page 94 37.2 Ponca City 97 0.6 - Celestron CPC 800 GPS XLT Computerized Telescope | Instruction Manual - Page 56
LONGITUDE LATITUDE degrees min degrees Walla Walla 118 16.8 46 Wenatchee 120 1.2 47 Whidbey Is 122 39 48 Yakima 120 31.8 46 WEST VIRGINIA Beckley 81 7.2 37 Bluefield 81 13.2 37 Charleston 81 3.6 38 Clarksburg 80 13.8 39 Elkins 79 51 38 Huntington 82 33 38 - Celestron CPC 800 GPS XLT Computerized Telescope | Instruction Manual - Page 57
NexRemote software you can control your CPC telescope with a computer via the RS-232 port located on the computerized hand control and using the RS-232 cable (#93920). For information about using NexRemote to control your telescope, refer to the instruction sheet that came with the NexRemote - Celestron CPC 800 GPS XLT Computerized Telescope | Instruction Manual - Page 58
APPENDIX E - MAPS OF TIME ZONES 58 - Celestron CPC 800 GPS XLT Computerized Telescope | Instruction Manual - Page 59
59 - Celestron CPC 800 GPS XLT Computerized Telescope | Instruction Manual - Page 60
60 - Celestron CPC 800 GPS XLT Computerized Telescope | Instruction Manual - Page 61
61 - Celestron CPC 800 GPS XLT Computerized Telescope | Instruction Manual - Page 62
62 - Celestron CPC 800 GPS XLT Computerized Telescope | Instruction Manual - Page 63
63 - Celestron CPC 800 GPS XLT Computerized Telescope | Instruction Manual - Page 64
64 - Celestron CPC 800 GPS XLT Computerized Telescope | Instruction Manual - Page 65
65 - Celestron CPC 800 GPS XLT Computerized Telescope | Instruction Manual - Page 66
Observational Data Sheet Yearly Meteor Showers Shower Quadrantids Lyrids pi-Puppids Date Jan 01-Jan 05 Apr 16-Apr 25 Apr 15-Apr 28 Peak 4-Jan 21-Apr 23-Apr Hourly Rate 60-200 15 Var. eta-Aquarids Apr 19-May 28 5-May 60 June Bootids Jun 26-Jul 02 27-Jun Var. July Phoenicids Jul 10-Jul - Celestron CPC 800 GPS XLT Computerized Telescope | Instruction Manual - Page 67
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 Tel. (310) 328-9560 Fax. (310) 212-5835 - Celestron CPC 800 GPS XLT Computerized Telescope | Instruction Manual - Page 68
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.) Item # 11073-INST $10.00 04-05
I
I
N
N
S
S
T
T
R
R
U
U
C
C
T
T
I
I
O
O
N
N
M
M
A
A
N
N
U
U
A
A
L
L