The spectrum and color of sodium low pressure lamps

The spectrum and color of sodium low pressure lamps

By Jaime Zamorano – UCM We are using two different approaches to characterize street lights. The first one is by observing the spectrum of the lamp with a grating on top of the smartphone camera: #StreetSpectra project. The other ACTION pilot project analyses...
StreetSpectra project launched in Spain

StreetSpectra project launched in Spain

With the help of amateur astronomers we are beginning to test the data gathering for the StreetSpectra project. Citizens belonging to Agrupación Astronómica de Madrid (AAM), AstroHenares and Agrupación Astronómica Madrid Sur (AAMS) have received a talk, the manual (in...
Good news for banded demoiselle!

Good news for banded demoiselle!

Roy van Grunsven – Dutch Butterfly Conservation – 23/05/2019 The banded demoiselle is emerging in large parts of Europe this time of the year. This beautiful damselfly has increased in distribution thanks to the improved water quality in running waters....