Celestron 22151 Manuale di istruzioni - Pagina 7

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YOUR FIRST ASTRONOMICAL OBSERVING SESSION

THE MOON

Now you are ready to take your telescope out at night and do some real observing!

Let's start with the Moon. The Moon takes about one month go through a complete phase cycle, from New Moon to Full

Moon and back again. Try observing it at different points during this cycle.

While you can observe the Moon any time it is visible in the night sky, the best time to view it is from two days after a New

Moon up to a few days before a Full Moon. During this period, you will be able to see the most detail in craters and lunar

mountain ranges. Consult a calendar to ﬁ nd out when the next New Moon will be.

1. With a clear view of the Moon, set up your telescope with the 25 mm eyepiece.

2. Turn on the ﬁ nderscope and look through it to ﬁ nd the red reticle.

3. Move the telescope until you can see the Moon through the ﬁ nderscope's window and the reticle is centered on the Moon.

4. Look through the 25 mm eyepiece. Gently turn the focus knobs to adjust the sharpness of the image.

CONGRATULATIONS! YOU HAVE NOW OBSERVED YOUR FIRST CELESTIAL OBJECT!

To get a closer view of the Moon, replace the 20 mm eyepiece with the 4 mm eyepiece. It will give you more magniﬁ cation,

making the Moon appear much larger. You may need to adjust the focus knobs when you change eyepieces to ensure you are

getting the sharpest image.

You can view many other celestial objects, such as planets, star clusters and nebulae using this same basic technique.

For more tips for astronomical observing, please visit: ExploreTheSky.com

There you will ﬁ nd comprehensive tips to help you get the most from your new telescope including:

• How to observe the planets

• How to locate and observe stars, double stars, star clusters

• How to observe deep-sky objects such as nebulae and galaxies

• How to choose a good location for astronomical observing

• How to evaluate sky conditions

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