Detecting Hydrogen in the Milky Way through Spin-flip Transitions

We plan to contribute to the mapping of our galaxy by measuring hydrogen emissions with a radio telescope. These hydrogen emissions are radio waves that are emitted from a hydrogen atom when the electron spin changes from up to down. This gives off a radio wave with a wavelength of 21 cm and a frequency of 1420 MHz that reveals to us the location of hydrogen throughout our galaxy. This no longer requires expensive equipment and can be achieved by amateur astronomers, mostly using common parts found in a hardware store, and the rest being readily available online