Orion StarBlast 4.5 Instruction Manual
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Orion StarBlast 4.5 Instruction Manual

4.5" astro reflector telescope
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A N E M P L O Y E E - O W N E D C O M P A N Y
Copyright © 2022
may be reproduced, copied, modified or adapted, without the prior written consent of
INSTRUCTION MANUAL
Orion
®
4.5" Astro Reflector Telescope
All Rights Reserved. No part of this product instruction or any of its contents
StarBlast
#10015
Corporate Offices: 89 Hangar Way, Watsonville CA 95076 - USA
Toll Free USA & Canada: (800) 447-1001
International: +1(831) 763-7000
Customer Support: support@telescope.com
4.5
™
IN 201 Rev. D 10/22

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  • Page 1 Deutsche Wenn Sie das vollständige Handbuch einsehen möchten, wechseln Sie zu OrionTe- lescopes.de, und geben Sie in der Suchleiste die Artikelnummer der Orion-Kamera ein. Klicken Sie anschließend auf der Seite mit den Produktdetails auf den Link des entsprechenden Produkthandbuches. Español Para ver el manual completo, visite OrionTelescopes.eu y escriba el número de...
  • Page 2 Optical tube and Base Dust cap EZ Finder II 25mm Allen eyepiece wrench Moon filter 10mm eyepiece Figure 1. Components of the StarBlast 4.5 Astro Reflector telescope.

  • Page 3: Parts List

    With its high-quality parabolic reflector optics and precision- the clamp can be loosened to allow you to rotate the tube to a engineered mechanics, the StarBlast 4.5 is not a toy, but rather comfortable eyepiece position. an immensely capable astronomical instrument. Your telescope 3.
  • Page 4 Figure 2. Anatomy of a great telescope – the StarBlast 4.5.

  • Page 5: Setting Up The Telescope

    III. Setting Up the Install and Eyepiece The StarBlast 4.5 comes with two 4-element Bertele eyepieces: Telescope one of 20mm focal length and the other of 10mm focal length. More information about the eyepieces are provided later in this Your new TableTop telescope arrives with the optical tube manual.
  • Page 6 Eyepiece Focuser Figure 7. The EZ Finder II superimposes a tiny red dot on Focus knobs the sky, showing right where the telescope is pointed. Figure 5. Insert an eyepiece into the focuser and secure it by lightly tightening the two thumbscrews. Sight tube Azimuth adjustment...

  • Page 7: Operating The Telescope

    On or Off the Ground? Your Choice Focal Length of Telescope (mm) Magnification = One of the great qualities of the StarBlast 4.5 Astro Reflector is Focal Length of Eyepiece (mm) its conveniently compact, portable size. The cutout in the side panel makes a perfect carrying handle for taking the StarBlast So, for example, the StarBlast 4.5 has a focal length of 450mm.

  • Page 8: Using Your Telescope

    Altitude and Azimuth (Aiming the Telescope) Your StarBlast 4.5 telescope’s base permits motion along two axes: altitude (up/down) and azimuth (left/right) (Figure 9). Both motions can be made simultaneously and in a continuous manner for easy aiming. This way you can point to any position in the night sky, from horizon to horizon.

  • Page 9: Objects To Observe

    V. Objects to Observe of view. This is called “tracking” the object. It’s easy to do with the StarBlast 4.5 because of its smooth motions on both axes. Now that you are all set up and ready to go, one critical deci- As the object moves off toward the edge of the eyepiece’s field...

  • Page 10: Care And Maintenance

    VI. Care and Maintenance JUPITER: The largest planet, Jupiter, is a great subject for observation. You can see the disk of the giant planet and watch the ever-changing positions of its four largest moons -- Io, If you give your telescope reasonable care, it will last a lifetime. Callisto, Europa, and Ganymede.

  • Page 11: Specifications

    VII. Specifications Optical design Newtonian reflector Primary mirror figure Parabolic Primary mirror coating Aluminum with SiO2 overcoat Secondary mirror 34mm minor axis diameter Secondary mirror coating Aluminum with SiO2 overcoat Aperture 114mm Focal length 450mm Focal ratio f/3.9 Central obstruction diameter 34mm Focuser Rack and pinion, 1.25”...
  • Page 12 Appendix A much adjustment unless the telescope is handled roughly. Accurate mirror alignment is important to ensure the sharpest possible images viewed through your telescope, so it should Collimation – Aligning the Optics be checked occasionally. With practice, collimating is relatively Collimation is the process of adjusting the optics of a telescope easy to do and can be done in daylight.
  • Page 13 Primary Mirror Center Mark You may have noticed that your StarBlast 4.5 has a small adhe- sive ring in the exact center of the primary mirror. This “center mark” allows you to achieve a very precise collimation of the primary mirror; you don’t have to guess where the center of the mirror is, which is important in the collimation process.
  • Page 14 Cleaning Mirrors You should not have to clean the StarBlast 4.5’s primary mirror very often, if ever. Covering the telescope with the dust caps on the front opening and on the focuser when not in use will help prevent dust from accumulating on the mirrors.

  • Page 16: One-Year Limited Warranty

    One-Year Limited Warranty This Orion product is warranted against defects in materials or workmanship for a peri- od of one year from the date of purchase. This warranty is for the benefit of the original retail purchaser only. During this warranty period Orion Telescopes & Binoculars will repair or replace, at Orion’s option, any warranted instrument that proves to be defec-...

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