1420.4 MHz Hydrogen line: There it is!
![](http://blog.svenbrauch.de/wp-content/uploads/2014/08/firstlight1.png)
With a reasonably simple setup, I finally succeeded in detecting the 1420.4 MHz galactic hydrogen hyperfine structure line: One of the first successful measurements. The little bulge in the center of the image is the hydrogen line. The sharp, high peaks are man-made interference and not part of the astronomical signal. The yellow line is with the telescope pointed towards the milky way, the pink line is for a different […]