Some interesting things about eclipse

A few interesting things about eclipse may not be known, which are the following interesting numbers and facts:

- The longest total solar eclipse is 7 minutes 30 seconds

- In North and South Antarctica never see a total solar eclipse but only a part.

- identical eclipses (including partial, ring and full) for every 18 years 11 days (6,585.32 days) will occur once (called the Saros cycle).

- The eclipse begins at sunrise at some point on its route and ends at sunset at a point about half a mile away from the original point.

The shadow of a mosque of a mosque is reflected when a solar eclipse occurred in Yinchuan, the capital of China's Ningxia autonomous region (photo: Xinhua).

- The maximum number of eclipses (total, ring, part) is 5 times a year.

- Have at least 2 solar eclipses in a year somewhere on Earth.

- The total eclipse is not visible until the Sun is obscured by the Moon over 90%. If the sun is 99% obscured, daylight is like sunset.

- The shadow of the eclipse moves 1,770 km in 1 hour at the equator and up to 8,046 km in an hour near the poles

- The width of the eclipse strip is 269 km.

- Every 1.5 years, there is a total eclipse once.

- Partial eclipse is visible on the eclipse of 4,828 km long.

- Before the invention of the atomic clock, the study of ancient texts on solar eclipses allowed astronomers to discover that the Earth turns 0.001 seconds slowly each century.

- Only observing the solar eclipse, in 130 BC the Greek astronomer Hipparchus calculated the distance from the Earth to the Moon, only 11% wrong with today's measurements.

- Also from the eclectic viewpoint, in 1668 the British astronomer Joseph Lockyer and the Frenchman Pierre Janssen were independent of each other and discovered Heli inert gas (derived from the word Helios is the Sun God) in the Japanese of the Sun.

- When solar eclipses occur, cattle and poultry in the eclipse area often go to bed or acts of confusion, confusion when total eclipse. The temperature dropped markedly.