Although Sun is the biggest extra-terrestrial object that we notice, you might have found that it is difficult to keep looking at the Sun with your naked eye. This is because Sun’s rays are too strong (Very bright and luminosity/ radiation is greater than other celestial objects) that we need to reduce their natural power to a very lower degree so that Sun could be observed. Therefore you might have wondered how one could really get about observing the Sun.
Well, if you have ever come across a situation where you wanted to observe a solar eclipse or a transit, especially Venus or Mercury transit (transit is a flyby of a planet/ object in the background of the Sun), you might have utilized the techniques/ precautions needed to secure the eye sight.
It’s strongly recommended that you use precautionary methods to avoid possible irreversible damage to the eye whenever you’re observing solar eclipses.
Now let’s have a go-through of precautions that we can use when observing Sun. These will come in following posts of mine.
Credited to Eclipse 2010 Method of Observing a Solar Eclipse Safely