Amateur astronomy is a hobby where participants enjoy observing or imaging celestial objects in the sky using the unaided eye , binoculars , or telescopes. Even though scientific research may not be their primary goal, some amateur astronomers make contributions in doing citizen science , such as by monitoring variable stars ,  double stars  sunspots ,  or occultations of stars by the Moon  or asteroids ,  or by discovering transient astronomical events , such as comets ,  galactic novae  or supernovae in other galaxies. Amateur astronomers do not use the field of astronomy as their primary source of income or support, and usually have no professional degree in astrophysics or advanced academic training in the subject. Most amateurs are hobbyists , while others have a high degree of experience in astronomy and may often assist and work alongside professional astronomers.
Amateur Astronomer Wins 'Cosmic Lottery' with 1-in-10-Million Supernova Shot
Amateur Astronomer Wins 'Cosmic Lottery' with 1-inMillion Supernova Shot | Space
Amateur Astronomers Association of New York
Amateur sky-watchers in Canada, in conjunction with NASA scientists , have made a startling discovery after years of looking up at the stars: a new type of aurora. While the new aurora may appear similar to the famous northern lights or aurora borealis , it's a phenomenon previously unknown to science. Rather than the traditional greens and blue hues of other auroras, Steve appears to the human eye as purplish, and is surrounded by a green, fence-like structure.
It seems that you're in Germany. We have a dedicated site for Germany. Amateur astronomy has changed beyond recognition in less than two decades. The reason is, of course, technology.