Infrared Astronomy

Infrared light or (IR) is an electromagnetic radiation with a wavelength longer than that of visible light that naked eye can see, starting from the nominal edge of visible red light at 0.7 micrometres, and extending gradually to 300 micrometers.

These wavelengths correspond to a frequency range of approximately 430 to 1 THz, and also it includes most of the thermal radiation emitted by objects near room temperature.

So it simply bring us to a new world that we never saw before with our naked eyes, and opens up many areas of studies in many field, including astronomy.