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Celestron PowerSeeker 70AZ Manual

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Table des matières
INTRODUCTION .................................................................................................................................... 3
ASSEMBLAGE........................................................................................................................................ 6
Installation du trépied ........................................................................................................................... 6
Fixation du tube du télescope sur la monture ....................................................................................... 7
Déplacement manuel du télescope........................................................................................................ 8
Installation du renvoi à 90º et des oculaires (lunette) – 60AZ.............................................................. 8
Installation du renvoi à 90º et des oculaires (lunette) – 50AZ.............................................................. 8
Installation des oculaires sur les newtoniens........................................................................................ 9
Installation et utilisation des lentilles de Barlow.................................................................................. 9
Installation et utilisation de l’oculaire redresseur 1,5x – 50AZ............................................................ 9
Installation du chercheur..................................................................................................................... 10
Alignement du chercheur.................................................................................................................... 10
NOTIONS FONDAMENTALES SUR LES TÉLESCOPES ................................................................ 11
Orientation de l’image ........................................................................................................................ 12
Mise au point ...................................................................................................................................... 12
Calcul du grossissement ..................................................................................................................... 12
Établissement du champ de vision...................................................................................................... 13
Conseils généraux d’observation........................................................................................................ 13
NOTIONS FONDAMENTALES D’ASTRONOMIE ........................................................................... 14
Le système de coordonnées célestes................................................................................................... 14
Mouvement des étoiles ....................................................................................................................... 15
OBSERVATION CÉLESTE.................................................................................................................. 16
Observation de la Lune....................................................................................................................... 16
Observation des planètes .................................................................................................................... 16
Observation du Soleil ......................................................................................................................... 16
Observation d’objets du ciel profond ................................................................................................. 17
Conditions de visibilité....................................................................................................................... 19
ASTROPHOTOGRAPHY ..................................................................................................................... 20
Photographie au foyer primaire et courte exposition.......................................................................... 20
Photographie planétaire et lunaire avec imageurs spéciaux ............................................................... 20
Imagerie CCD pour les objets du ciel profond ................................................................................... 20
Photographie terrestre......................................................................................................................... 20
ENTRETIEN DU TÉLESCOPE ............................................................................................................ 21
Entretien et nettoyage des éléments optiques ..................................................................................... 21
Collimation d’un télescope newtonien ............................................................................................... 21
ACCESSOIRES EN OPTION.............................................................................................................. 24
SPÉCIFICATIONS DU POWERSEEKER............................................................................................ 25
… 77 …


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