white and black houses near body of water during night time

Great Joy comes to astronomy only when you stand beneath a clear dark sky and marvel at the heavens. But today, only a few people see the true beauty of the night sky from their homes; others care less. The brightest star can even get lost because of the glare of light pollution from our cities, roads, urban conurbation and towns.

Many people only remember the milky way that stretches across the night sky during childhood. But unfortunately, today, the upcoming generation has never seen talk more of experiencing our galaxy, which we render as our universe. Therefore we are going to discuss what we mean by light Pollution.

What Is Light Pollution?

Light Pollution, as defined by astronomers, is an artificial light that shines in a place that it is not wanted nor where it is not needed. The increased illumination of the night sky is an everyday manifestation of light Pollution. And also the difficulties attached with observing the astronomical object from a location that has been polluted.

For instance, we have a poorly designed light fixture that shines through the sky, which is incorrectly directed. There is a phenomenon known as skyglow; it is an atmosphere that has caused the night sky from taking on an orange appearance. 

Menace is not the only problem of light Pollution for astronomers. People who lack interest in astronomy are deeply affected by the light intrusion inside their properties, even if it is just a streetlight or floodlight. Light Pollution has a lot of direct effects on the environment.

Some light that is high powered produces lots of carbon dioxide compared to modern-day diesel cars that make 500 kilometres of light. And it is not only that, its strain on wildlife in rural and urban is lovely. It is an unnecessary energy wastage which eventually, it will get into a huge and unnecessary cost to the economy worldwide.

Amateur astronomers and professionals are affected by electromagnetic interference, including light Pollution. The electromagnetic are known from the wave of radio. And the existing potential observatory from Pollution in the wavelength of the electromagnetic spectrum is protected by the International Astronomical Unions Commission B7.

The Aim Of The Commission B7

  • They work hard to preserve and defend important dark sky sites worldwide.
  • They have been able to identify the three classes of dark sky sites which will be monitored and preserved. And it will be designated as classes A, B and C.

Class A sites deal with telescopes with a mirror on the site and an aperture greater than 6.5 m. It also has unnoticeable light Pollution at zenith. 

Class B are sites for telescopes that have been built or planned. It has undetected light Pollution at the zenith and an aperture over 6.5 m.

Class C is the final part of the class. Another operating telescope has major observatory sites with an aperture greater than 2.5m. Their light noise at the zenith is less than the natural variation in night sky brightness. It is attached with an 11year solar cycle.


Light Pollution has been almost restricted by the commission 50 in charge of the light pollution working group. Light Pollution, in a sense, is an unwanted artificial light or an excessive artificial light that causes wastage of energy.