Celestron AstroMaster 90EQ Manual

Celestron Teleskop AstroMaster 90EQ

Læs gratis den danske manual til Celestron AstroMaster 90EQ (32 sider) i kategorien Teleskop. Denne vejledning er vurderet som hjælpsom af 45 personer og har en gennemsnitlig bedømmelse på 4.7 stjerner ud af 23 anmeldelser. Har du et spørgsmål om Celestron AstroMaster 90EQ, eller vil du spørge andre brugere om produktet?

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ENGLISH

Table of Contents

INTRODUCTION ........................................................................................................................................3

ASSEMBLY .................................................................................................................................................6

Setting up the Tripod ................................................................................................................................6

Attaching the Equatorial Mount ...............................................................................................................7

Installing the Counterweight Bar & Counterweights ...............................................................................7

Attaching the Slow Motion Cables...........................................................................................................8

Attaching the Telescope Tube to the Mount.............................................................................................8

Installing the Diagonal & Eyepieces (refractor) .......................................................................................9

Installing the Eyepieces on the Newtonians .............................................................................................9

Moving the Telescope Manually ............................................................................................................10

Balancing the Mount in R.A...................................................................................................................10

Balancing the Mount in Dec...................................................................................................................10

Adjusting the Equatorial Mount .............................................................................................................11

Adjusting the Mount in Altitude.............................................................................................................11

TELESCOPE BASICS ...............................................................................................................................12

Image Orientation ...................................................................................................................................13

Focusing .................................................................................................................................................13

Aligning the Finderscope........................................................................................................................13

Calculating Magnification ......................................................................................................................14

Determining Field of View.....................................................................................................................15

General Observing Hints ........................................................................................................................15

ASTRONOMY BASICS ............................................................................................................................16

The Celestial Coordinate System............................................................................................................16

Motion of the Stars .................................................................................................................................16

Polar Alignment with Latitude Scale......................................................................................................17

Pointing at Polaris...................................................................................................................................18

Finding the North Celestial Pole ............................................................................................................18

Polar Alignment in the Southern Hemisphere ........................................................................................19

Finding the South Celestial Pole (SCP)..................................................................................................20

Declination Drift Method of Polar Alignment........................................................................................21

Aligning the Setting Circles ...................................................................................................................22

Motor Drive ............................................................................................................................................23

CELESTIAL OBSERVING .......................................................................................................................24

Observing the Moon ...............................................................................................................................24

Observing the Planets .............................................................................................................................24

Observing the Sun ..................................................................................................................................24

Observing Deep-Sky Objects .................................................................................................................25

Seeing Conditions...................................................................................................................................25

ASTROPHOTOGRAPHY..........................................................................................................................26

Short Exposure Prime Focus Photography.............................................................................................26

Piggyback Photography ..........................................................................................................................26

Planetary & Lunar Photography with Special Imagers ..........................................................................26

CCD Imaging for Deep Sky Objects ......................................................................................................26

Terrestrial Photography ..........................................................................................................................26

TELESCOPE MAINTENANCE ................................................................................................................27

Care and Cleaning of the Optics.............................................................................................................27

Collimation of a Newtonian ...................................................................................................................27

OPTIONAL ACCESSORIES ...................................................................................................................30

AstroMaster Specifications.....................................................................................................................31

Produkt Specifikationer

Mærke:	Celestron
Kategori:	Teleskop
Model:	AstroMaster 90EQ
Bredde:	370 mm
Dybde:	240 mm
Højde:	1090 mm
Vægt:	12250 g
Forstørrelse:	50 x
Oprindelsesland:	Kina
Længde:	914.4 mm
Fast brændvidde:	1000 mm
Linse overflade:	Fully Multi Coated (FMC)
Maksimal understøttede okulære, diameter:	20 mm
Trefod, materiale:	Stål