In memoriam of the recently deceased amateur astronomer John Dobson, who died aged 98 on 15. January 2014, an International Side walk Astronomy Night (ISAN), i.e. a public observation, was announced by the Sidewalk Astronomers. John Dobson is known mainly for his invention of the Dobsonian Telescope and for being a co-founder of the aforementioned Sidewalk Astronomers. The latter set up their telescopes in a spot with many casual observers, who are invited to join the observation.
A couple of amateur astronomers from the Observatory in Aachen (Sternwarte Aachen) took part in this event on 08. March 2014 in the Elisengarten in Aachen.
![Participants of the ISAN in memoriam of John Dobson. Participants of the ISAN in memoriam of John Dobson.](http://www.above-horizon.de/blog/wp-content/uploads/2014/03/DSCN3069-1024x768.jpg)
Participants of the ISAN in memoriam of John Dobson.
During perfect weather, the Sun and the Moon were visible and could be observed with a large number of different telescopes.
More photos of the event can be found at: http://www.fotowald.de/thumbnails-119.html