Which event is thought to be rare but happens once every 18 months?

Question

Here is the question : WHICH EVENT IS THOUGHT TO BE RARE BUT HAPPENS ONCE EVERY 18 MONTHS?

Option

Here is the option for the question :

  • Shooting star
  • Equinox
  • Nautical twilight
  • Total solar eclipse

The Answer:

And, the answer for the the question is :

TOTAL SOLAR ECLIPSE

Explanation:

When one heavenly body moves directly in between two others, this phenomenon is known as an eclipse. During a total solar eclipse, the moon completely blocks the sun, casting a dark shadow on Earth that can make it seem like night during the day. This happens somewhere on Earth once every 18 months, but there is only one total solar eclipse that can be seen from any given position once every 400 years on average.

Which event is thought to be rare but happens once every 18 months?
A total solar eclipse is a rare and awe-inspiring event that occurs when the Moon passes directly between the Earth and the Sun, blocking out the Sun’s light and casting a shadow on the Earth’s surface. While many people believe that total solar eclipses are extremely rare, they actually occur once every 18 months on average, although their visibility and accessibility to observers can vary greatly.

During a total solar eclipse, the Moon’s shadow moves across the Earth’s surface at speeds of up to 2,000 miles per hour, creating a narrow band of darkness known as the umbra. Within this band, the Sun’s light is completely blocked out, creating a surreal and breathtaking experience for observers on the ground.

Total solar eclipses are rare because they require a precise alignment of the Earth, Moon, and Sun, and are only visible from a relatively small area on the Earth’s surface. In order to witness a total solar eclipse, observers must be in the path of the Moon’s shadow, which can be difficult to predict and plan for in advance.

total solar eclipses have been observed and studied by astronomers and scientists for centuries, providing valuable insights into the workings of our solar system and the universe as a whole. They have also captured the imagination of people around the world, inspiring stories, myths, and legends throughout human history.

Whether you are an astronomer, a science enthusiast, or simply someone who appreciates the beauty and wonder of the natural world, a total solar eclipse is a rare and unforgettable experience that is well worth seeking out. With careful planning and a bit of luck, you too can witness this incredible event and be awed by the power and majesty of the universe.