Atmospheric phenomena are optical phenomena arising from the optical properties of the Earth’s atmosphere. Christian were able to take photos of three different types of atmospheric phenomena: a sun pillar at sunset, a 22° sun halo and a wonderful rainbow.
Deep sky observing on a 1700 meters high mountain without being disturbed from direct street lamp stray light and ground fog. A team of 4 amateur astronomers enjoyed views of the summer milky way and nebulae in Sagittarius. The highlights were Cirrus and Veil nebula, the Helix as well as Trifid and Lagoon nebula.
Christian could photograph some spectacular lightnis during the numerous thunderstorms the contrary 2017 summer.
Viktor and Jürgen observed noctilucent clouds at the North-Western dawn sky. At the oberservation time, the sun was about 8 degrees below horizon. The noctilucent clouds were shining in a bluish colour.