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Category: Our Universe

What is Universe and theories of origin of Universe.

What is Universe? Universe may be defined as the collective name of all the known and unknown celestial objects e.g., the solar system, the stars, the galaxies, constellations and all the matter which lies in the space between these objects. According to an estimate, the Universe is 10-20 thousand million years old and measure 1010 light

Astronomical constants:

An astronomical constant is a physical constant used in astronomy. Formal sets of constants, along with recommended values, have been defined by the International Astronomical Union (IAU) several times: in 1964 and in 1976 (with an update in 1994). In 2009 the IAU adopted a new current set, and recognizing that new observations and techniques continuously provide better values for these constants, they decided to

Solar System and its planets.

The Solar System: The Solar System comprises of the Sun and eight planets (excluding Pluto) which revolves around it in a fixed orbits. The Sun is the center of the Solar system. Distance-wise Mercury is the closest to the Sun followed by Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune. Pluto was excluded from the

Statistics of Universe

The Sun came into existence about 4.5 billion years ago. The universe came into existence about 10-20 billion years ago. There are thousands of millions of galaxies. Abell is the farthest located galaxy which is about 13,230 million light years away. Diameter of Milky Way is about 105 light years. The Solar System revolves around the center