There are many myths that surround lunar eclipse, one of which is: Is it safe to watch lunar eclipse with naked eyes? Some say that watching lunar eclipse with naked eyes doesn’t cause any harm and many suggest ‘not’ to look at lunar eclipse with bare eyes.
Whenever an eclipse appears, it comes with a lot of precautions. According to experts, it is completely safe to look at lunar eclipse with bare eyes. There are two phases of lunar eclipse: the partial phase, in which part of the moon passes through earth’s shadow, and a total lunar eclipse, in which the entire moon passes through earth’s shadow. Experts say that there are no special glasses required to watch lunar eclipse and it is absolutely safe to watch all the phases of lunar eclipse.
It is exceptionally rare to see a lunar eclipse for such a long duration. The upcoming total lunar eclipse will indicate two things: The bodies will be aligned in a straight line, in the order of sun, earth, and moon. Also, at the same time, there will be a full moon. There will be another unique factor about this total lunar eclipse. It will be that the earth will be close to the farthest it will be from the sun, which is also referred to as the Aphelion.
unar eclipses occur on a full Moon night when the Sun, Earth and Moon are aligned in a straight line or almost straight line in space. Anyone on the night-side of the Earth at the time of the eclipse can see it.
Viewing a lunar eclipse, whether it is a partial, penumbral or total eclipse of the Moon, requires little effort. All you need is a clear view of the Moon and the Sky, clothes to keep your warm at night, and a chair so that you can be comfortable while watching the eclipse.
source https://timesofindia.indiatimes.com/life-style/health-fitness/health-news/blood-moon-lunar-eclipse-2018-how-safe-is-it-to-watch-lunar-eclipse-with-naked-eyes/articleshow/65118180.cms