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Aryabhatiya (IAST: Āryabhaṭīya) or Aryabhatiyam (Āryabhaṭīyaṃ), a Sanskrit astronomical treatise, is the magnum opus and only known surviving work of the 5th century Indian mathematician Aryabhata. Philosopher of astronomy Roger Billard estimates that the book was composed around 510 CE based on historical references it mentions.
' Sun Treatise ') is a Sanskrit treatise in Indian astronomy dated to 4th to 5th century, [1] [2] in fourteen chapters. [ 3 ] [ 4 ] [ 5 ] The Surya Siddhanta describes rules to calculate the motions of various planets and the moon relative to various constellations , diameters of various planets, and calculates the orbits of various ...
A Question and Answer Guide to Astronomy is a book about astronomy and cosmology, and is intended for a general audience. The book was written by Pierre-Yves Bely, Carol Christian, and Jean-Rene Roy, and published in English by Cambridge University Press in 2010. It was originally written in French. [1]
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Hannu Karttunen, lead author of Fundamental Astronomy. Fundamental Astronomy (1984–2017) is an astronomy textbook by Finnish author Hannu Karttunen [1] of University of Turku; Pekka Kröger and Heikki Oja [2] of University of Helsinki; Markku Poutanen [3] of Finnish Geodetic Institute; and Karl Johan Donner [4] of University of Helsinki.
A graphical view of the Cosmic Calendar, featuring the months of the year, days of December, the final minute, and the final second. The Cosmic Calendar is a method to visualize the chronology of the universe, scaling its currently understood age of 13.787 billion years to a single year in order to help intuit it for pedagogical purposes in science education or popular science.
This article is a list of notable unsolved problems in astronomy. Problems may be theoretical or experimental. Theoretical problems result from inability of current theories to explain observed phenomena or experimental results. Experimental problems result from inability to test or investigate a proposed theory.
The Spitzer Space Telescope’s infrared cameras revealing stars in the densely populated galactic center region. The Catalogue of Fundamental Stars is a series of six astrometric catalogues of high precision positional data for a small selection of stars to define a celestial reference frame, which is a standard coordinate system for measuring positions of stars.
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related to: astronomy today 5th edition solutions unit 9 pdf textbook