Meade LX10 Bedienungsanleitung PDF herunterladen (Seite 3)

Observation Log

This section should summarize what was ob ser ved, h ow it was observed, and under what

conditions. You should inclu d e enough information so that you can assess the quality of the

observations at a later date, long after you’ve forgotten what th e weather was really like.

You shoul d include:

Date and time of observations

Location

Equipment u s ed (eyepieces, ﬁlt er s, etc.)

Outdoor conditions

Make sure you bring several sheets of paper to record the observing conditions and to make

sketches of observed objects.

Making Observations

1. Now that your setting circles are aligned, sl e w the telescope to another star in the list

with an RA at least several hours away. Record the RA and Dec as read from the

setting circl e s. This will give you an idea how far oﬀ the alignment may be. As you

may have noticed, the observing de ck is not ﬂat and this may cause problems for some

of you.

2. One or more planets may be visible depending on their orbital positions. If any planets

are observable, ﬁrst observe them using the largest focal length lens (this should be

the one you have used for alignment—26mm). Center the planet an d record its RA

and decl. Next, switch to the next smaller focal le n gt h lens—15mm. How does the

image appear now? Is the image brighter, dimmer, or about the same? Is it larger or

smaller? Try the smallest lens, 9.7mm. How does the planet appear now? How hard

is it to observe with this lens? What are the pros and cons of the diﬀerent size lenses?

If you can’t ﬁnd any planets, try to look at some features of the moon.

3. Depending on what is visible, your TA may ask you to use one or more of the ﬁlters

in your observations.

4. Look in the ‘object book’ and try to ﬁnd som e of the double stars, nebulae, and clusters

that are visible.

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