Használati útmutató Celestron The G8
Olvassa el alább 📖 a magyar nyelvű használati útmutatót Celestron The G8 (73 oldal) a távcső kategóriában. Ezt az útmutatót 2 ember találta hasznosnak és 2 felhasználó értékelte átlagosan 4.5 csillagra
Oldal 1/73
The G-8
Model #11023
8" OPTICAL TUBE ASSEMBLY
Model #11023-1
CG-5 EQ Mount
Model # 91515
INSTRUCTION MANUAL
Table of Contents • i
T A B L E O F C O N T E N T S
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▲ INTRODUCTION.................................................................................................................................... 1
How to Use this Manual ................................................................................................................. 2
A Word of Caution .......................................................................................................................... 2
The Schmidt-Cassegrain Optical System ....................................................................................... 3
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▲ ASSEMBLING YOUR G - 8 ................................................................................................................... 4
The G-8 ......................................................................................................................................... 5
Assembling the CG-5 Equatorial Mount................................................................................ 6
Setting Up the Tripod ......................................................................................................... 6
Adjusting the Tripod Height ................................................................................................ 6
Attaching the Accessory Tray ........................................................................................... 7
Attaching the Equatorial Mount ......................................................................................... 8
Attaching the R.A. Slow Motion Knob ................................................................... 9
Attaching the Declination Slow Motion Knob........................................................ 10
Attaching the Counterweight Bar and Counterweights ..........................................11
Attaching the Telescope to the Mount ..............................................................................12
Removing the Lens Cap ....................................................................................................13
Balancing the Telescope in R.A. .......................................................................................14
Balancing the Telescope in DEC ......................................................................................14
Adjusting the Mount in Altitude ......................................................................................... 15
Adjusting the Mount in Azimuth........................................................................................15
Disassembling and Transporting Your G-8 ........................................................................16
Storing Your G-8 .............................................................................................................. 16
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▲ THE CELESTRON 8 OPTICAL TUBE ASSEMBLY ...............................................................................17
Setting Up your C8 OTA ....................................................................................................18
Installing the Finderscope ..................................................................................................18
Attaching the Finder Bracket to the Telescope ..................................................................18
Attaching the Finder to the Bracket ................................................................................... 19
Removing the Lens Cap..................................................................................................... 19
▲▲▲▲
▲ TELESCOPE BASICS ..........................................................................................................................20
Attaching the Accessories ............................................................................................................20
The Visual Back ...............................................................................................................20
The Star Diagonal ............................................................................................................. 20
The Eyepiece ................................................................................................................... 21
Image Orientation .......................................................................................................................... 22
Focusing .......................................................................................................................................23
Aligning the Finder ........................................................................................................................24
Your First Look ............................................................................................................................. 25
Daytime Observing ...........................................................................................................25
Nighttime Observing .........................................................................................................26
Calculating Magnification ...............................................................................................................27
Determining Field of View .............................................................................................................. 27
General Observing Hints ................................................................................................................28
General Photography Hints ........................................................................................................... 28
▲ ▲ ▲ ▲
▲ ASTRONOMY BASICS ........................................................................................................................29
The Celestial Coordinate System ..................................................................................................29
Motion of the Stars ........................................................................................................................30
ii Table of Contents•
Polar Alignment ............................................................................................................................. 31
Finding the Pole ............................................................................................................................32
Latitude Scales ................................................................................................................33
Pointing at Polaris ............................................................................................................34
Declination Drift ................................................................................................................35
Polar Alignment Finders ...................................................................................................36
Aligning the R.A. Setting Circle ........................................................................................36
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▲ ▲
▲ CELESTIAL OBSERVING ................................................................................................................... 37
Observing the Moon ......................................................................................................................37
Observing the Planets ...................................................................................................................37
Observing the Sun ......................................................................................................................... 38
Observing Deep-Sky Objects .........................................................................................................39
Using the Setting Circles ..................................................................................................39
Star Hopping .................................................................................................................... 40
Viewing Conditions ........................................................................................................................42
Transparency.................................................................................................................... 42
Sky Illumination ................................................................................................................42
Seeing ..............................................................................................................................42
▲ ▲ ▲ ▲
▲ CELESTIAL PHOTOGRAPHY ............................................................................................................. 44
Short Exposure Prime Focus ........................................................................................................45
Piggyback .....................................................................................................................................47
Eyepiece Projection ......................................................................................................................49
Long Exposure Prime Focus .........................................................................................................51
CCD Imaging .................................................................................................................................53
Description of F-Numbers.........................................................................................................54
Imaging at f/1.95 ......................................................................................................................55
Imaging at f/6.3 ........................................................................................................................55
Imaging at f/10 .........................................................................................................................55
Imaging at f/20 .........................................................................................................................56
▲▲
▲▲
▲ TELESCOPE MAINTENANCE ..............................................................................................................57
Care and Cleaning of the Optics ....................................................................................................57
Collimation ....................................................................................................................................57
▲ ▲
▲ ▲
▲ OPTIONAL ACCESSORIES ................................................................................................................. 59
▲▲
▲▲
▲ THE MESSIER CATALOG.................................................................................................................... 64
▲▲
▲▲
▲ LIST OF BRIGHT STARS .................................................................................................................... 67
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▲ FOR FURTHER READING .................................................................................................................... 68
Termékspecifikációk
| Márka: | Celestron |
| Kategória: | távcső |
| Modell: | The G8 |
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