The sun is a typical star which is about 150 million km away from the Earth. Solar ennergy provides virtually all the heat & light which are received by our planets & it therefore sustains every living entity. The character of our own environment is strongly influenced by solar radiation which has been a major […]

The Sun & major nine planets are the main bodies of our Solar System. In order of increasing distance from the Sun these are Mercury, Venus, earth, mars, Jupiter, Saturn, Uranus, Nepyune & Pluto. Sir William Herschel discovered Uranus in 1781 during a review of the entire sky which was so systematic as to be […]

Mercury is the smallest and innermost planet in the solar system. It orbits the Sun once every 88 days. When viewed from our planet; Earth and is bright and range between?2.0 to 5.5 in what is known as apparent magnitude. However, it is not as easily spotted due to the fact that its greatest angular […]

Saturn is the six planet from the sun in our Solar System. It is the second largest Planet. Saturn appears to be similar to Jupiter in many ways. Saturn is the least dense of all the planets. Its density of 704kg m-3 is less than that of water so that one might imagine Saturn being […]

Jupiter is the fifth planet from the Sun. Jupiter is the largest and most massive planet. It appears brighter than any other planet apart from Venus; at times it may even cast a shadow. Some of its surface features, and the four brightest satellites, can easily be seen in a telescope, or even in binoculars. […]