Spectroscopy

In Fort Collins, CO, SARA member Rodney Howe used a Radio Astronomy Supplies Spectra-Cyber receiver along with a two-dish hydrogen-line interferometer to produce the animated image below. He explains:

"I'm sending a few plots from the SpectraCyber. These are looking at the clouds a little north of Cygnus. Notice the one large peak and the two smaller ones with high Doppler blue shift. If I understand this right, the peak with the highest blue shift is the closest cloud. It's moving toward us and/or we're apparently moving toward it. (I have yet to calculate the Local Standard of Rest, so I don't know just how fast). It's amazing to think we can see this far with just a couple of TVRO antennas."