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2020 — On July 19, 2020, after a 20-year-long survey, astrophysicists of the Sloan Digital Sky Survey published the largest, most detailed 3D map of the universe so far, fill a gap of 11 billion years in its expansion history, and provide data which supports the theory of a flat geometry of the universe and confirms that different regions ...
Astronomy in China has a long history. Detailed records of astronomical observations were kept from about the 6th century BC, until the introduction of Western astronomy and the telescope in the 17th century. Chinese astronomers were able to precisely predict eclipses. Much of early Chinese astronomy was for the purpose of timekeeping.
1576 – Royal Danish Astronomical Observatory Uraniborg at Hven by Tycho Brahe; 1577–80 – Taqi al-Din invents a mechanical astronomical clock that measures time in seconds, one of the most important innovations in 16th-century practical astronomy, as previous clocks were not accurate enough to be used for astronomical purposes. [13]
Mayan astronomers discover an 18.7-year cycle in the rising and setting of the Moon.From this they created the first almanacs – tables of the movements of the Sun, Moon, and planets for the use in astrology.
Astronomical chronology, or astronomical dating, is a technical method of dating events or artifacts that are associated with astronomical phenomena.Written records of historical events that include descriptions of astronomical phenomena have done much to clarify the chronology of the Ancient Near East; works of art which depict the configuration of the stars and planets and buildings which ...
The Sydney 'Star Camera' used in the Carte du Ciel project, original publication, 1892. The Carte du Ciel (French pronunciation: [kaʁt dy sjɛl]; literally, 'Map of the Sky') and the Astrographic Catalogue (or Astrographic Chart) were two distinct but connected components of a massive international astronomical project, initiated in the late 19th century, to catalogue and map the positions of ...
The observations underlying the Rudolphine tables were performed by Tycho Brahe and his team. Brahe's measurements were much more accurate than the ones available previously. [1] He worked with elaborate instruments to determine the precise positions of planets and stars in the sky but did not have a telescope.
The timeline of discovery of Solar System planets and their natural satellites charts the progress of the discovery of new bodies over history. Each object is listed in chronological order of its discovery (multiple dates occur when the moments of imaging, observation, and publication differ), identified through its various designations (including temporary and permanent schemes), and the ...