Mercury

Mercury is nearest planet to the Sun. Its also the smallest planet in the Solar System. The degree of axis of tilt of Mercury is just 2. It is so close to the Sun that it is difficult to see it from the ground. This explains why some early astronomers never saw the planet. When seen from the Earth Mercury is never far from the Sun in the sky. Because of the glare of the Sun, it can only be seen in twilight or in the dawn. That is why it is called...

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Planets and methods of finding them

     A Planet is a celestial body which revolves around stars. For example, Earth, Venus, Jupiter etc.. The word 'planets' is derived from Greek meaning 'wanderers or wandering stars' since planet looked like stars and also seemed to move or revolve. Planets were all discovered approximately between 1900- 1400 BC, but no one actually made many observations except for predicting them.    The planets are bound by the...

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Kepler's laws of planetary motion

From ancient times, humans have observed the movements of the planets, stars, and other celestial objects. In ancient history, these observations led scientists to regard Earth as the center of the Universe because of the movement of the rotation of the earth. This geocentric model was elaborated and formalized by the Greek astronomer Claudius Ptolemy(100 AD  - 170 AD) in the second century and was accepted for another...

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Special article: Super Moon

Seriously not the Sun but the Supermoon A supermoon, in astrology is a full or new moon that coincides with a close approach by the Moon to the Earth. The Moon's distance varies each month between approximately 354,000 km (220,000 mi) and 410,000 km (254,000 mi). This can be said as the Moon's perihelion where it is closest to Earth Coined By: Richard Nolle in 1979, an...

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Types of touch screens

                                                 A touchscreen is an electronic visual display that can detect the presence and location of a touch within the display area. The term generally refers to touching the display of the device with a finger or hand. Touchscreens are common in devices...

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Sunspot, Solar Flare and Solar Wind

Sunspots:Sunspots are said to be the coolest parts of the sun. Indeed, they are. Their temperatures range between 2,727–4,227 °C.  These are actually phenomenons on the photosphere of the sun. They appear black against the background. They are caused by intense magnetic field which are like Eddy currents and thus form reduced surface temperature.  The sunspots move around the sun in a cycle of 11 years called the Sunspot...

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The Sun

The Sun is one of the numerous stars present in our Universe. The Sun is a hot ball of gas and fire. It is the only star visible during the day time. It is a very huge ball of fire. The mean distance of the Sun from the Earth is approximately 149.6 million kilometers (1 AU), though the distance varies as the Earth moves from perihelion in January to aphelion in July. At this average distance, light travels...

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The Solar System

The Solar System    The Solar System is one of the star systems present in the Universe. The Solar System is believed to have formed about 4.6 billion years ago due to the collapse of the Molecular cloud which also lead tho the formation of the Sun and the constituents planets of the Solar System. All of the things present in the Solar System orbit around the Sun in an elliptical plane or orbital plane. Most of the mass...

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