Mercury is the closest planet to the Sun (general information about Mercury and other planets of the Solar System can be found in Appendix 1) - the average distance from the Sun is 57,909,176 km. However, the distance from the Sun to Mercury can vary from 46.08 to 68.86 million km. The distance of Mercury from the Earth is from 82 to 217 million km. The axis of Mercury is almost perpendicular to the plane of its orbit.
Due to the slight inclination of the axis of rotation of Mercury to the plane of its orbit, there are no noticeable seasonal changes on this planet. No Mercury and satellites.
Mercury is a small planet. Its mass makes up the twentieth part of the Earth’s mass, and its radius is 2.5 times smaller than the Earth’s.
Scientists believe that in the center of the planet is a large iron core - it accounts for 80% of the mass of the planet, and from above - the mantle of stone rocks.
For observations from Earth, Mercury is a difficult object, since it must always be observed against the background of the evening or morning dawn low above the horizon, and besides this, at this time the observer sees only half of his disk illuminated.
The first to investigate Mercury was the American space probe Mariner 10, which in 1974-1975. flew past the planet three times. The maximum convergence of this space probe with Mercury was 320 km.
The surface of the planet is similar to shriveled apple peel, it is dug up with cracks, hollows, mountain ranges, the highest of which reach 2-4 km, steep ledges-escarpes 2-3 km high and hundreds of kilometers long. In a number of regions of the planet, valleys and craterless plains are visible on the surface. The average density of the soil - 5.43 g / cm3.
In the studied hemisphere of Mercury there is the only flat place - the Plain of Heat. It is assumed that this is a frozen lava, pouring out of the depths after a collision with a giant asteroid about 4 billion years ago.
Объяснение:
Born on February 26, 1979 in the Ural city of Ust-Katav. Father comes from Irkutsk. After graduation, I came to work at Ust-Katavsky Carriage Works as a design engineer. Mother - Uralka root - the director of folk theater in the Palace of Culture, a talented person. The family has three children. Tamara is average. We can say that she grew up in the Palace of Culture, where her mother first took her - two months - with herself to work. First, the girl slept in a stroller, then on the piano. Grown up, sat next to my mother during rehearsals, or wandered through the Palace of Culture. Mother's rehearsals, circles in the Palace, where the girl was, the beauty of the Palace itself could not but affect Tamara's creative imagination. You can read about her “theatrical” childhood in the story “Alka” (Internet magazine “Prologue”). Tamara Mikheeva loved to read since childhood. Gradually, she realized that writing was just as interesting as reading. She remembers her first essay. In the second grade, the teacher asked an essay on the theme "Hurry up - make people laugh." This was her first tale. And one more motive prompted her to write. There was a good library in the house, but there were not enough books. I read the "Wizard of the Emerald City", but there was no continuation. I wanted to finish the fairy tale myself. At the age of 14 she was fascinated with free verse - free white verses. But for a long time Tamara was shy about her creations, hid her manuscripts. Only mother knew that the daughter wrote. She graduated from the Literary Institute. A.M. Gorky (seminar of M.P. Lobanov, attended an additional seminar on children's literature by A.P. Toroptsev and R.S. Sefa). She participated in seminars for young writers writing for children in Tarkhany (2008), Staraya Russa (2009), Melikhovo (2010), Karabiha (2011), Konstantinovo (2012); participant of the Forum of young writers in Lipki 2009-2011; participant of the festival "Young writers around DETGIZ." In 2006, Tamara Mikheeva became a finalist for the VP Prize. Krapivin, in 2007 - the winner of the National Prize "A cherished dream" for the story "Asino Summer", in 2008 - the winner of the literary prize named after S.V. Mikhalkov for the collection "Yurkin boomerangs." In addition, in 2010 she received an incentive award from the Sergei Mikhalkov Competition for the story “Light Mountains”. Tamara Mikheeva - a member of the Commonwealth of Children's Writers of the Urals, a member of the jury of the Prize for them. V.P. Nettle Tamara Mikheeva lives with her family in the village of Miassky. She works at a school and teaches literature. And he continues to write books. Writes the old-fashioned way on paper, then enters into the computer. Mikheeva has a good family, where two sons grow up. The book "Asino Summer" opens with the words: "I dedicate to my favorite little boys Egor, Sevka and Olezhka!". The third boy is a nephew. You can envy the boys, they have a mother, aunt - inventor, fantasy, narrator, writer and just a good man. Tamara Mikheeva has big creative plans. There is a hope that her first books are just the beginning, that she will give to readers - children a whole library of kind and bright books.
