Orion SkyView Pro 127mm EQ Manual
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Orion SkyView Pro 127mm EQ Manual

#9877; equatorial maksutov-cassegrain telescope
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orion
®
skyView
Pro 127mm EQ
™
#9877
Equatorial Maksutov-Cassegrain Telescope
customer support (800)‑676‑1343
E‑mail: support@telescope.com
corporate offices (831)‑763‑7000
89 Hangar Way, Watsonville, ca 95076
Providing Exceptional Consumer Optical Products Since 1975
IN 215 Rev. C 02/09

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Summary of Contents for Orion SkyView Pro 127mm EQ

  • Page 1 Manual orion ® skyView Pro 127mm EQ ™ #9877 Equatorial Maksutov-Cassegrain Telescope customer support (800)‑676‑1343 E‑mail: support@telescope.com corporate offices (831)‑763‑7000 89 Hangar Way, Watsonville, ca 95076 Providing Exceptional Consumer Optical Products Since 1975 IN 215 Rev. C 02/09...
  • Page 2 Focus knob (not shown) Right ascension slow‑motion Counterweight shaft control knob Counterweights Right ascension axis rear‑cover Latitude scale Counterweight lock knobs Latitude adjustment L‑bolts Center support shaft Tripod support tray Tripod leg Leg lock‑knobs Figure 1. The SkyView Pro 127mm EQ.

  • Page 3: Table Of Contents

    Orion telescope. Your new SkyView Pro 127mm EQ is designed for, high‑resolution viewing, and astrophotography of astronomical objects. With its precision optics and sturdy equatorial mount, you’ll be able to enjoy hundreds of fascinating celestial denizens.
  • Page 4 Finder scope bracket Nylon alignment thumbscrews Finder scope Azimuth adjustment knobs Post Tensioner Figure 2. Orient the equatorial mount so that the post on the Focus lock ring tripod head lines up between the azimuth adjustment knobs on the equatorial mount. Figure 3a.

  • Page 5: Balancing The Telescope

    Figure 4a‑d. Proper operation of the equatorial mount requires that the telescope tube be balanced on both the Right ascension and Declination axes. (a) With the R.A. lock lever released, slide the counterweights along the counterweight shaft until it just counterbalances the tube.

  • Page 6: Aligning The Finder Scope

    Finder scope magnification can be varied. The SkyView Pro 127mm EQ Deluxe comes with a 8x40 ach‑ Magnification is calculated as follows: romatic finder scope (Figure 3a). The number 8 means eight‑...

  • Page 7: Polar Alignment

    6a‑b. The SkyView Pro 127mm EQ mount. ure of 2x per millimeter of aperture is the maximum attain‑ able for most telescopes. Your SkyView Pro 127mm EQ has an aperture of 127 millimeters, so the maximum magnification Little Dipper would be about 254x. This level of magnification assumes you (in Ursa Minor) have ideal conditions for viewing.
  • Page 8 The SkyView Pro 127mm EQ mount can be equipped with an optional polar axis finder scope (Figure 9) which goes inside the right ascension axis of the mount. When properly aligned Observers in the Southern Hemisphere aren’t so fortunate to...
  • Page 9 “Polaris” on the finder’s reticle. You must first loosen the knob underneath the equatorial mount on the center sup‑ port shaft to use the azimuth adjustment knobs. Once Polaris is properly positioned within the reticle, you are precisely polar aligned. Retighten the knob underneath the equatorial mount.
  • Page 10 1. Loosen the Dec. lock lever and rotate the telescope until So, the coordinates for the Orion Nebula listed in a star atlas the declination value from the star atlas matches the read‑ will look like this: ing on the Dec.

  • Page 11: Observing Tips

    Magnitude is a measure of how bright a star is, the brighter a star is, the lower its magnitude will be. A good star to remem‑ For many users, the SkyView Pro 127mm EQ telescope will ber for this is Megrez (mag. 3.4), which is the star in the “Big...
  • Page 12 Figure 13. Megrez connects the Big Dipper’s handle to it’s “pan”. Allow at least 30 minutes for your SkyView Pro 127mm EQ It is a good guide to how conditions are. If you can not see Megrez to equilibrate. If the scope has more than a 40° temperature (a 3.4 mag star) then conditions are poor.
  • Page 13 Defocusing a star slightly can help bring out its color. the front opening of a SkyView Pro 127mm EQ. The primary Under dark skies, you can observe a wealth of fascinating attraction is sunspots, which change shape, appearance, and deep‑sky objects, including gaseous nebulas, open and glob‑...

  • Page 14: Astrophotography

    est deep‑sky objects, first catalogued about 200 years ago by the French astronomer Charles Messier. Determine in which constellation the object lies. Now, find the constellation in the sky. If you do not recognize the constella‑ tions on sight, consult a planisphere. The planisphere gives an all‑sky view and shows which constellations are visible on a given night at a given time.

  • Page 15: Specifications

    Eyepiece adapter: Accepts 1.25" accessories, camera T‑ in the external compartments of the case. Orion also offers threads an optional Padded Scope Case that will fit the SkyView Pro Mount.
  • Page 16 Warranty This Orion SkyView Pro 127mm EQ is warranted against defects in materials or workmanship for a period of one year from the date of purchase. This warranty is for the benefit of the original retail purchaser only.

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