Your First Astronomical Observing Session; The Moon - Celestron Astromaster 90 AZ Mode D'emploi

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 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 or moon phase app to find out when the next new Moon will be .
1 . With a clear view of the Moon, set up your telescope with the eyepiece .
2 . Turn on the finderscope and look through it to find the red reticle .
3 . Move the telescope until you can see the Moon through the finderscope's window and the reticle is centered on the Moon .
4 . Look through the eyepiece . Gently turn the focus knob 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 10 mm eyepiece . It will give you more magnification,
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 .
ENGLISH I 11