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Astronomy, Astrophysics, and Cosmology Luis A Anchordoqui Department of Physics and Astronomy Lehman College, City University of New York Lesson VII March 29, 2016 arXiv:0706 1988 L A Anchordoqui (CUNY) Astronomy, Astrophysics, and Cosmology 3-29-2016 1 / 22
Astronomy, Astrophysics, and Cosmology Luis A Anchordoqui Department of Physics and Astronomy Lehman College, City University of New York Lesson X April 19, 2016 arXiv:0706 1988 L A Anchordoqui (CUNY) Astronomy, Astrophysics, and Cosmology 4-19-2016 1 / 24
Lectures on Astronomy, Astrophysics, and Cosmology Luis A Anchordoqui Department of Physics, University of Wisconsin-Milwaukee, P O Box 413, Milwaukee, WI 53201, USA (Dated: Spring 2007) These lecture notes were prepared as an aid to students enrolled in (UG) Astronomy 320, in the 2007 Spring semester, at UW-Milwaukee They are for study
FIG 1: Celestial spheres of ancient cosmology minute = 1:8 107 km, and one light year 1 ly = 9:46 1015 m ?1013 km: (1) For specifying distances to the Sun and the Moon, we usually use meters or kilometers, but we could specify them in terms of light The Earth-Moon distance is is 150;000;000 km; this is equal to 8 3 lm Far out in the
Cosmology (from the Greek: kosmos, universe, world, order, and logos, word, theory) is probably the most ancient body of knowledge, dating from as far back as the predictions of seasons by early civiliza-tions Yet, until recently, we could only answer to some of its more basic questions with an order of mag-nitude estimate
ASTRONOMY AND ASTROPHYSICS - A History of Astronomy, Astrophysics and Cosmology - Malcolm Longair ©Encyclopedia of Life Support Systems (EOLSS) complexity because of the non-commensurability of the lunar month and the solar year The determination of the numbers of months in the year was important, for example, in the levying of taxes