Astronomical background knowledge

Source: European Southern Observatory (ESO) / https://www.eso.org/public/germany/products/mountedimages/mounted_0163/
Astronomical background knowledge for beginners, advanced and experts!
Whether stars, planets, deep sky or moon ...
before you start with a telescope, you should consider a few points...
What are suitable observing sites? How does the sky influence astronomy? How does the night sky change over the year?
These and many more questions are answered here!

On suggestion of our customers and friends we have collected our experiences and our knowledge here, in order to facilitate on the one hand the entrance into the hobby of astronomy and on the other hand, in order to stimulate to the exchange of experiences and to give practical Tipps for more joy with the Spechteln (stargazing).

We describe under the respective topics the advantages and disadvantages of astronomical systems, environmental parameters (such as seeing, transparency, etc.), also give a cost overview and tips on things that we find very practical and helpful.

Where you can do astronomy
...observing sites,
which are suitable for "woodpecking".

Influence of sky quality
...the conditions and
times of observation

Do you know the...?
...difference of summer and winter milky way

The precession of the earth axis
...or why the celestial north pole moves
(Image taken from www.astronomie.de)