Choose a PROFESSIONAL TELESCOPE here on earth, or in space around the Essay

Choose a PROFESSIONAL TELESCOPE here on earth, or in space virtually the Earth, with which to observe Charles Messiers Butterfly ball - Essay ExampleMost of the bright stars in this cluster are hot, blue B type stars but the brightest extremity is a K type orange giant star, BM Scorpii, which contrasts sharply with its blue neighbors in photographs. BM Scorpii is classed as a semi regular covariant star, its brightness varying from magnitude +5.5 to magnitude +7.0.Estimates of the Butterfly Clusters distance have varied over the years, with a mean value of around 1,600 light years, great(p) it a spatial dimension of some 12 light years. Modern measurements show its total visual brightness to be magnitude 4.2 (www.answers.com....)Butterfly Cluster is an open cluster in Scorpius 4 northwest of M7 which contains about 80 stars roughly in the shape of a butterfly. Visible to the naked eye, it was first famous by Giovanni Hodierna before 1654. Its most conspicuous star is an orange giant K star of magnitude 6.2. (daviddarling info.)California Association for Research in Astronomy, own and operate the Keck Telescopes. It is an association of the California Institute of Technology and the University of California. I conducted my observations from the Keck Telescope in this institute. My choice was for this