What the comet was approaching the Earth
A small comet Hartley 2 will be visible from Earth with the naked eye, on 20 October, when she will fly past the planet just 11 million kilometers. Over the last century, this will be the closest “contact” of our planet with a comet.
Hartley-2 was discovered in 1986. Its orbital path was far from the Earth, while the couple spins around Jupiter do not orbit drew closer.
Hartley-2 will be included in the number of comets that passed in the last century is quite close to the Earth.
Comet McNaught (McNaught) lit up the sky in 2007. Becoming the brightest comet in over forty years, McNaught was dubbed the great comet of 2007. The astronauts were able to observe this comet, resulting in Strait light on the composition of these celestial bodies. spacecraft Willis found here the decrease of the solar wind.
The comet’s discoverer, Australian astronomer Robert McNaught (Robert McNaught) was discovered in 2009 a new bright comet McNaught C/2009 R1 . flying past Earth in June of this year.
Comet Schwassman-Wachmann surprised scientists in 1995, when split into three mini-comets. The collapse of the heavenly bodies, by the way, is still ongoing. By the time of its approach to Earth in 2006, Schwassman-Wachmann was born on 30 small pieces, some of which maximalists to Earth in 2022.
Hale-Bopp is considered the most “long-playing” comet in the 20th century. The Terrans could watch her for 18 months from 1996 to 1997.
A giant comet was first spotted beyond the orbit of Jupiter and lights a thousand times brighter than at the same distance of Halley’s comet. NASA estimate the diameter of the nucleus of Hale-Bopp in 19-25 miles, what is the ratio of two and five to the size of the comet collided with our planet 65 million years ago. Hale-Bopp will not return to our solar system until the year 4385.
“The great comet of 1996” Hyakutake . flying close to the Earth, the sky was illuminated with bluish green light, according to scientists, due to the presence in the composition of the emission of diatomic carbon. Hyakutake was the first comet emitting x-rays.
Shoemaker-Levy -9 collided with Jupiter in 1994 year. Then we first observed collision of two Solar system bodies. As a result of this “meeting” was formed bubbles of gas in the atmosphere remained dark marks.
Shoemaker-Levy -9 became the first comet that revolved not around the Sun, and the planet. Jupiter, most likely, drew the comet in its orbit in 1960-70-ies.
Astronomers predicted in 2126, the collision of Earth with comet Swift-Tuttle . However, he later revised his calculations that the comet will fly past us at a distance of 15 million miles.
This comet enters the Perseid meteor shower, appearing annually in the summer night sky.
The most famous comet is probably Halley’s comet . visible from Earth every 75 or 76 years. Thus, people can observe it, say, twice in my life.
For a comet observed since ancient times. But that this is the comet, which repeatedly observed from Earth, opened in 1705 the English astronomer Edmond Halley (Edmond Halley).
The next time the comet will be visible from Earth in 2061 year.
Closest to our planet in the last two centuries, approached a small comet IRAS-Araki-Alcock in 1983. The size of the moon, she appeared in the sky at the distance of only three million miles. Specialists from NASA managed to prove via satellite, in what part of this comet contains sulfur is first of its kind discovery.
The brightest comet of the century West was in 1976. It was so clear that it could be observed in the daytime. This comet is still not back soon for the distance close to the Ground.