The COSETI Observatory
The LOGO for the Columbus Optical SETI Observatory.
- Indicates that hf >> kT, i.e., the energy in an optical photon is much greater than thermal energy.
- h = Planckís constant,
- f = frequency,
- k = Boltzmannís constant,
- T = temperature.
- For this reason, optical receivers are much noisier than their microwave counterparts - but that is only part of the story. Read on to find out why this doesnít really matter.