Monday, 14 April 2014

SOME BRIGHTEST STARS

S   p                                                                                    SIRIUS___Sirius, also known as the Dog Star, is the brightest star in the sky. It's name comes from the Greek world for 'scorching' It is in the constellation Canis Major[The great Dog]. Sirius is a main sequence star that is about 70 times more luminous than the Sun. It is about 8.6 light-years from Earth.                          CANOPUS___Named either for an ancient city in northern Egypt or the helmsman for Menelaus, Canopus  is the second brightest star in the southern constellation of carina and Argo Navis.                                           RIGIL KENTAURUS______Rigel kentaurus, also known as Alpha centaur. It is actually means foot of the centauri, is the third brightest star in the sky. Its name literally means foot of the centaur. It is actually a triple star system made up of Alpha Centaur B,and Alpha centauri C [also known as proxima centauri beause it is the closet stsr to Earth at 4.3 light years]. Rigel kentaurus is located in the constellation centaurus.     ARCTURUS______Arcturus is the brightest star in the constellation Bootes; which is one of the oldest constellations in the night sky. It is the fourth brightest star in the entire sky. Arcturus means bear guard, as it overlooks the constellation Ursa Major. It is an orange giant with a diameter about 10 times that of the sun and a luminosity about 100 times that of the sun. At about 34 light-years, Arcturus is located in the constellation Bootes.                                                                                                                                     VEGA______Vega is the fifth brightest star in the sky. Its name comes from Arabic meaning 'swooping eagle' vega is about 25 light years from Earth. It is three times the size of the sun and 50 times as luminous. vega is locked in the constellation Lyra.                                                                                                          CAPELLA______The sixth brightest star in the sky, capella's name comes from Latin meaning little She-goat. capella is a Yellow giant star, like our own sun, but much larger. It is part of a binary star system with a red giant star. The two orbit               around each other once every 104 days. capella is a approximately 41 light-years from earth. Capella is in the constellation Auriga.                                                                           procyon is the eight brightest stat night sky. It is yellow-white star and at 11.4 light years, one of the closer stars to earth.  Mira [omicron ceti] is a well known variable red giant star in the constellation called cetus. It was discovered in 1596 by David Fabricus, an amateur Dutch astronomer.

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