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sume the spherical shape and secondly, they have not yet established a debris free orbit in their solar system and thirdly, they must not be satellites for other planets. Further, if the celestial object in question is too small to take the rounded spherical shape, it would probably be classified as a comet or an asteroid.
In our own solar system, there are several objects that fall under this category of planets. The introduction of this new category of celestial objects was prompted by the recent discovery of Eris – a disc shaped cluster of debris that was located far beyond the orbit of Pluto. The other notable dwarf planets in our solar system are Ceres and Pluto. Ceres was for previously recognized as the largest asteroid and Pluto is demoted to dwarf planet status considering that its orbit is not as well established as other planets. It is interesting to note that these three are only the most prominent dwarf planets in our solar system. There could be as many as 200 orbiting in the outer reaches of our solar
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The star is visible with naked eyes in a clear summer sky in vicinity of the southern margin of constellation virgo. The star has been known to be old and inactive, and photometrically stable (Vogt et al., 1366). The major properties of 61 Virginis are listed in table 1.
Arguments and counter arguments, for and against were all there to decide the appropriate nomenclature for Pluto. Owen Gingerich, chairman of the International Astronomical Union's Planet Definition Committee had himself undergone through a difficult time as both the lobbies tried to register their side of the logical statements.
But due to the vast differences in its size and orbit from the other certified planets, several astronomers were in thought whether it should be approved as a planet or not; because it actually matched more with KBO's than the planetary bodies. In 2006, the International Astronomical Unit officially reclassified Pluto as a dwarf planet.
In the nebulae, the formations of gas, dust and other materials clump together, to form larger masses (objects). These larger objects attract further matter, and at last become big enough to form stars. The remaining materials that left are
In this regard, his use of the telescope provided the impetus for observing outer space, particularly the moon, the discovery of four satellites of Jupiter, and “resolved nebular patches into stars” (Jarod, 2009, par. 1). Due to his
se rocky core surrounded by a thick liquid hydrogen layer that is covered by another liquid layer of mixed hydrogen and helium that dissipates to the gaseous outer layer (Saumon, Hubbard, and Lunine, 1992). In order to support life, Saturn would have to be stripped of its
A Jovian planet is a real planet, which Pluto is not currently. Jovian planet is Jupiter like and possesses low density and a large diameter. Since Pluto is dissimilar to Jupiter and has a small diameter it is not recognized as a Jovian planet. A