The small solids. Asteroids or the small planetes . ... The comets. ... Ceneca the Young.Procuring about the nature.63 y. The comet is a celestial body of a great size, but a rare one... transparent. Sometimes there seen a core and the medium forms a kind of a tail, beard or dishevelled looks. ... The core is an ice body - conglomeration of frosted gas and dust. ... The comet state is variable: ones have the con tails, others the dust tails, and the third have both. ... Meteors and meteorites. ...
The small planets (asteroids) are the Solar system solids with diameter from 1 to 1000 km. ... It was discovered in 1949, its diameter is about 1km. The orbit is nearly crossed with the Earth’s orbit and while the maximum approaching of these bodies the distance between them is about 7 million km. such approaching of Ikar and the Earth occurs once 19 years (the last was in 1987). Ikar a small planet №1566) diameter is about 1 km, discovered by B. Baade (USA, 1949). ...
Skylab" (English: sky laboratory), the american orbital station for the flights in the Earth orbit; the programme of its design. It was put into the orbit in 14.5.73. ... The station was not aimed to returne to the Earth; the crew changing was carried by the transport spaceship "Apollo". In 1973 - 1974 the three crews were working on board the station (3 persons in one) the maximum duration of the flight was 84 days (the 3d crew). 11.7.1979 was the last day of this station. ...
. Sirius. Sirius ( a of a Big Dog) is a star of 1,5 star value, the brightest in the sky. It is a double star. Its component is a Big Sirius the first discovered white dwarf. Back .
. Sikhote-Alinsky meteorit rain. In the 12th February 1947 in the Far East at the Sikhote-Alinsky mountain about 100 t of a space substances fell into taiga. This mass consisted of ironnickel cristalls of different sizes. In the air they desintegrated into thousand pieces and it was natural iron raining in the Earth. Some of the pieces weight was about several tones. After reaching the Earth they formed about 100 craters. The greatest was 26,5 m in diameter and its depth was 6 m. Back .
Shumaker's-Levy's comet. In July 1992 the comet went in 15 thousand km near Jupiter. ... The comet was turning not around the Sun, but around Jupiter with a two-year period. During the next approaching to Jupiter in 1994 all the fragments cut into the planet’s atmosphere with the 65km/sec speed and generated the powerful disturbance of the cloudy surface. The falling was predicted by the astronomers and was observed from the Earth and from the Space. ...
. The changing of the comet's orbit. The changing of the comet's orbit under the Jupiter gravitation. As it seen from the picture not only the orbit may be changed but also the direction of the comet motion. Back .
. The time interval 1-5 corresponds to Mercurian star days; 1-7 to Mercury year. The white areas will turned to the Sun in two rotations round the Sun (Mercury's sun-days). Back .
Midday line determination by means of gnomon. At midday the shadows of all the objects are directed along the line pointing exactly from the South to the North. ... At one or two hours before midday mark the shadow edge from the pole with the help of a peg. ... Using the free part of the cord as a circle draw a circumference coming through the peg. ... A straight line coming through the middle of the line, connecting the first and the second peg and the base of gnomon is a midday line. ...
. Sphere (from the Greek "sphaira" - "a sphere"): . 1) a sphere of action, the spreading limits of something (example a sphere of influence); . 2) a society surrounding, environment. Back .
. Space vehicle "Surveyor". “Surveyor” is a series of american spaceship for the Moon's investigations, designed for the mild landing from the so-called getting path, which should investigate the lunar surface and choose the landing places for spaceships of "Apollo" series. The "Surveyor" mass on the Earth was 1 tone, after landing on the Moon it was 285 kg. In 1966 - 1968 seven "Surveyors" were lauched. Back .
The scorpion. This constellation lays between the Marksman and the Scales in the Milky way. The Godness hunter Artemida sent a scorpion to kill Orion. Arat writes: "When the Scorpion rises in the East, Orion makes hust to disappear in the West". The Sun comes into Orion constellation in 22th of November when it passes to nonzodiac constellation Snakecarrier on 20 days. ... Antares of Scorpion means in Greek a rival of Ares (of Mars). This bright star really looks like Mars. ...
Saturn: The beauty of the rings. Saturn . ... Belongs to the giant planets . It has no definite solid surface. ... The free fall acceleration at the Saturn surface near equator is 9,06 m/s^2 . ... In the centre of the planet the temperature is about 20000K. The satellites . ... The rings of Saturn . ... It is proved that Saturn's rings (as well as the other planet's) are the fragments of the great cloud being near the planet with million kilometres length (see how the rings were formed ). ...
. Rigel . Rigel ( b Orion's) is a blue and white star (visually a double one) of a zero star value with the luminance 23 times more than the solar. Back .
. Space vihicle "Renger". “Ranger” is a series of american interplanetary stations for the Moon's shooting, the programme of their development and starts. The mild landing on the Moon was not considered. Some "Rangers" were brought out into the Earth orbit. Maximum mass is 367 kg. In 1961 - 1965 nine "Rangers" were put into the orbit. "Ranger-7" shot the Moon from the close distance (1964). Back .
. Regolit (from the Greek rhegos - a coverlet and lit ) is the Moon soil consists of the diversity of grainy material, the fragments of which were the Moon rocks and minerals glass and pieces of meteorites. It is formed in the result of meteorites break splitting and baking the Moon’s soils after the meteorites falling. It is saturated by the inert gases. Back .