The Sky Information

The sky
Daily Updates uploads New articles on this Site The sky is everything that lies above the surface of the earth including the atmosphere and other space. The night sky in  one of most beautiful sights in nature. The stars beyond number shine out of a velvety blackness , bright planets and long tailed comets come and go. The study of night sky is called Astronomy. 

TELESCOPE

WHO DISCOVERED TELESEOPE?

Hans lippershey a citizen from dutch built the first telescope in 1608. He was a lens make. But Galileo, an ltalian was the first who used one to study  the night sky by improving lippershey’s original design. A few days afterwards, having succeeded in making a better telescope  then the first, he took it to venice where he communicated the details of his invention to the public and presented the instrument itself to the senate. He spied the moon and spot on the sun.

 WHAT CAN WE SEE IN THE NIGHT SKY?

        Pyramid

During daylight we only see our sun and sometimes the moon. At night we see all the shining objects stars, bright planats, comets, etc. against the dark sky. We can see a lot in the night sky with just our naked eyes, we can see must more through binocular and telescopes. By using binocular and telescope it looks larger and you can see craters on its surface.

HOW DO ASTRONOMERS WORK?

An astronomer uses a wide range of scientific techniques to study the universe. This would include its origin and its make-up. Astronomy is divided into two main areas – observational astronomy and theoretical astronomy.

vCollecting data from satellites and spacecraft using radio and optical telscopes.

vDeveloping new instrumentation and maintaining existing equipment. 

Wha is the hubble space telescope?

The hubble space telescope makes one orbit around earth every 97 minutes. The hubble space telescope is a large telescope in space. It was launched  by NASA in 1990. Hubble is the length of a large school bus. These space telescope can pick up x-rays which canot pass through the atmosphere. 

WHAT IS RADIO TELESCOPE?

A radio telescope is from of directional radio antenna used in radio astronomy. The same types of antennas are also used in tracking and collecting data from satellites and space probes. Stars give off waves radio telescope are made. These are huge metal dishes, which can be tilted and turned to any part of the sky. The dishes pick up radio waves or signals and focus them onto an aerial, them to images.

WHEN DID PEOPLE FIRST STUDY THE SKY?

Records from the show that people moon, and stars years ago. The priests Babylon and ancient recorded the movements  of the moon and the stars and used them to create a calendar for farming and religious events earliest civilizations studied the sun, more then 5,000 of Egypt but people probably studied the sky long before that. In Britain, around 2800bc, Stonehenge was built, bossibly as  a kind of observatory. Stone were lined up to show the position of the sun and moon at different season. Ancient mayan and Chinese astronomers left accurate records of thir observation.

THE Planets

   Hear are nine planets in our solar system which are most important members of the sun’s family.

The planets that orbit the sun are (in order from the sun): Mercury, Saturn, Earth, Mars, Neptune, Venus, Uranus, Neptune and Pluto. The first four are small rocky bodies. The next four are giants, made up mainly of gas and the last one Pluto is a tiny ball of rocky and ice.

WHICH PLANEST HAVE RINGS AROUND THEM?

They are four giant gas planets Jupiter, Saturn, Uranus, and Neptune. Saturn, which has by far the largest ring system, was known to have rings for a long time. It was not until the 1970s that rings were discovered around the other gas planets. Once it is thought that only Saturn was the planet who had rings around it because it was visible through telescope. But close-up photographs taken by the voyager space probes have show us that other three gas giants have rings too.

WHICH IS THE BIGGEST PLANET AMONG ALL NINE?

Jupiter, the largest planets, is 5.2 astronomical units (780,000,000 km) from the sun and has a radius of 71,000 km (0.00047 AU), which is measures nearly 143,000km across and it is 11 times bigger than Earth. Even though it big takes less than 10 hours for it spin round once. This means that its surface spins at a speed of 45,000km an hour and it is 30 times faster than Earth.

WHAT ARE THE INTERESTING FACTS ABOUT PLANET SATURN?

The saturnine rings are made mostly of chunks of ice and small amounts of carbonaceous dust. The rings stretch out more than 120,700 km from the planet, but are amazingly thin: only about 20 meters thick. Many people think that these  makes Saturn the most beautiful object in the solar system. The other amazing fact about Saturn is that it is lightest (least dense) of all the planets. It is lighter even than water so that I would be able to float on water.

WHAT ARE THE SIZES OF PLANETS?

The humans think of Earth as large planet, in reality it is dwarfed by the massive gas giants lurking at the outer edges of our solar system. But even the biggest planets are dwarfed by the sun. sizes of planets as compare to Earth are:-

·     Jupiter (69,911 km or 43,441 miles) -1,120% the size of Earth

Saturn (58,232 km or 36,184 miles) – 945% the size of Earth

·     Uranus (25,362 km or 50,759 miles) – 400% the size of Earth

·     Neptune (24,622 km or 15,299 miles ) – 388% the size of Earth

·     Earth (6,371 km or 3,959 miles)

·     Venus (6,052 km or 3,761 miles ) – 95% the size of Earth

·     Mars ( 3,390 km or 2,460 miles ) – 53% the size of Earth

·     Mercury (2,440 km or 1,516 miles ) – 38% the size of Earth

WHAT IS THE NAME OF THE FARTHEST PLANET FROM THE SUN?

Pluto is usually farthest from the sun. however, its orbit “ crosses” inside of Neptune’s orbit for 20 years out of every 248 years. Pluto last crossed inside Neptune’s orbit on February 7,  1979, and temporarily become the 8^th planet from. So the Neptune was further still because during this time Pluto was traveling inside Neptune’s orbit. Neptune will become the furthest planet again in a little over 200 year’s time. Pluto travels more than 7000 million km’s away from the sun.       

STAR OR BALLS OF GAS

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tars are the most fascinating object in the sky. They look tiny bright speak in the sky but they are gigantic balls been interested throughout history. Stars look tiny because they lie many million, million kilometer away.

HOW LONG DO STARS LIVE? HOW DO STARS DIE?

Generally the more massive the star, the faster it burns up its fuel supply, and the shorter its life. The most massive stars can burn out and explode in a supernova after only a few million years of fusion. A star with a mass like the sun, on the other hand, can continue in picture below some stars explode in supernova, some stars swell up into white, and then a black dwarf. This will happen to our sun one day.           

WHY DO THE STARS TWINKLE?

The scientific name for the twinkling of stars is stellar scintillation. They seem to twinkle, or change their brightness, all the time. In fact, most of the stars are shining with a steady light. The movement of air (something called turbulence)