Celestron Onyx80EDF Owner's Manual

4, keep the Moon centered. Consult your local newspaper or a current astronomy magazine to find out when the Moon is visible. Observing the Planets This same method used to observe the Moon applies to viewing the planets. You can see Venus go through its lunar-like ph…

1, Celestron Onyx80EDF Congratulations on your purchase of the Celestron Onxy 80EDF telescope! Whether your interest lies in nature or celestial viewing the Onyx 80EDF telescopes offers the finest optical quality guaranteed to give you years of viewing pleasure. …

3, Using the example we started with in the previous section, we can determine the field of view using the same 25mm eyepiece. The 20mm eyepiece has an apparent field of view of 50°. Divide the 50° by the magnification, which is 25 power. This yields an actual field of 2°. To convert this…

8, CELESTRON TWO YEAR WARRANTY A. Celestron warrants this telescope to be free from defects in materials and workmanship for two years. Celestron will repair or replace such product or part thereof which, upon inspection by Celestron, is found to be defective in materials …

6, OPTIONAL ACCESSORIES You will find that additional accessories enhance your viewing pleasure and expand the usefulness of your telescope. For ease of reference, all the accessories are listed in alphabetical order. Advanced GT German Equatorial Mount (#91518) – Turn your 80EDF tel…