Manual Celestron PowerSeeker 60EQ - 21043 (page 92 of 151) (English, German, French, Italian, Spanish)

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Table des matières

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

ASSEMBLAGE.............................................................................................................................. 6

Installation du trépied .............................................................................................................................................. 6

Fixation de la monture équatoriale........................................................................................................................... 7

Installation de la tige de réglage et des contrepoids................................................................................................. 7

Fixation des câbles de contrôle lent......................................................................................................................... 8

Fixation du tube du télescope sur la monture........................................................................................................... 8

Installation du renvoi à 90º et des oculaires (lunette) .............................................................................................. 9

Installation des oculaires sur les newtoniens ........................................................................................................... 9

Installation du chercheur........................................................................................................................................ 10

Alignement du chercheur....................................................................................................................................... 10

Installation et utilisation des lentilles de Barlow ................................................................................................... 10

Déplacement manuel du télescope......................................................................................................................... 11

Équilibrage de la monture en ascension droite ...................................................................................................... 11

Équilibrage de la monture en déclinaison.............................................................................................................. 11

Réglage de la monture équatoriale......................................................................................................................... 12

Réglage de la monture en altitude.......................................................................................................................... 12

NOTIONS FONDAMENTALES SUR LES TÉLESCOPES ...................................................... 13

Orientation de l’image ........................................................................................................................................... 14

Mise au point ......................................................................................................................................................... 14

Calcul du grossissement......................................................................................................................................... 14

Établissement du champ de vision......................................................................................................................... 15

Conseils généraux d’observation ........................................................................................................................... 15

NOTIONS FONDAMENTALES D’ASTRONOMIE ................................................................. 16

Le système de coordonnées célestes ...................................................................................................................... 16

Mouvement des étoiles .......................................................................................................................................... 16

Alignement polaire avec l’échelle des latitudes..................................................................................................... 17

Pointage sur l’étoile Polaire................................................................................................................................... 18

Recherche du pôle nord céleste.............................................................................................................................. 18

Alignement polaire dans l’hémisphère sud............................................................................................................ 19

Alignement des cercles gradués............................................................................................................................. 21

Motorisation........................................................................................................................................................... 22

OBSERVATION CÉLESTE ........................................................................................................ 23

Observation de la Lune.......................................................................................................................................... 23

Observation des planètes ....................................................................................................................................... 23

Observation du Soleil............................................................................................................................................. 23

Observation d’objets du ciel profond..................................................................................................................... 24

Conditions de visibilité .......................................................................................................................................... 24

ASTROPHOTOGRAPHY............................................................................................................ 25

Photographie au foyer primaire et courte exposition ............................................................................................. 25

Photographie « Piggyback » (fixation de l’appareil sur le télescope).................................................................... 25

Photographie planétaire et lunaire avec imageurs spéciaux................................................................................... 25

Imagerie CCD pour les objets du ciel profond....................................................................................................... 25

Photographie terrestre............................................................................................................................................ 25

ENTRETIEN DU TÉLESCOPE................................................................................................... 26

Entretien et nettoyage des éléments optiques......................................................................................................... 26

Collimation d’un télescope newtonien................................................................................................................... 26

ACCESSOIRES EN OPTION.................................................................................................... 29

SPÉCIFICATIONS DU POWERSEEKER.................................................................................. 30

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Celestron PowerSeeker 60EQ - 21043 Manual

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