Last solar eclipse of 2019 on Thursday
The last solar eclipse of 2019 will take place on Thursday (December 26). The Annular Solar Eclipse will be visible as a ring of fire.
Annular solar eclipse happens with every solar eclipses but it is not always visible from earth.
On Thursday, the annular solar eclipse will be visible in northern Kerala. In Kerala, the eclipse will be visible between 8.05 am and 11.11 am. The eclipse will reach its peak by 9.25 am. The eclipse will be clearly visible in Kasaragod, Kannur, Kozhikode and Wayanad districts. Eclipse will be partially visible in other districts.
Exposing your eyes to the sun without proper eye protection during a solar eclipse can cause “eclipse blindness” or retinal burns, also known as solar retinopathy. This exposure to the light can cause damage or even destroy cells in the retina (the back of the eye) that transmit what you see to the brain. This damage can be temporary or permanent and occurs with no pain. It can take a few hours to a few days after viewing the solar eclipse to realize the damage that has occurred.
How to safely watch a solar eclipse
The only time that you can safely view a solar eclipse without special equipment is during a total solar eclipse. This is when the moon completely covers the sun. It is never safe to look at a partial solar eclipse without proper safety equipment or techniques. During the very brief time the sun is in total solar eclipse it is safe to look at it, but do so with caution. Even during the total solar eclipse, the total eclipse may last only a short period of time, and if you are looking towards the sun as the moon moves away from blocking the sun, you might get a solar burn on your retina which can cause permanent damage to your eyes. Talk with your eye care professional to determine the best viewing option for you. Below are a few common ways to safely watch a solar eclipse:
This is the safest and most inexpensive way to watch a solar eclipse. This helps you avoid looking directly at the eclipse by using a projected image. This do-it-yourself project includes making a pinhole in a cardboard paper with the sun on one side and a piece of paper three feet away without obstruction to project the image on the other side. Keep in mind not to look through the pinhole at the sun.
Number 14 welder’s glass provides effective protection and can be found at a local welder’s supply store. This glass will reduce the harmful rays that are emitted during the eclipse. Do not use if there are any scratches or damage to the glass.
Aluminized mylar plastic sheets are available as eclipse vision glasses or can be cut and made into a viewing box. Do not use if there are any scratches or damage to the sheet.
Other ways to safely watch a solar eclipse is on television or at the planetarium.
(With inputs from Prevent Blindness)