Transcript Slide 1
Archeoastronomical Examples From Persia Zeinab Shafiee Outlines • Why celestial events were important to Persians? • Examples for Green Archeoastronomy – Astronomical Cuneiform Tablets from Assyria and Babylonia • Examples for Brown Archeoastronomy – chartaghis Map of Persia at its greatest extent in Achaemenid Empire (550–330 BC) Astronomical Cuneiform Tablets from Assyria and Babylonia (Mesopotamia) • Several hundred thousand cuneiform tablets havebeen recovered from archaeological sites • about 5000 tablets dealing with astronomical observation, prediction, theory and astrology • The sun, moon, planets, and certain stars and constellations had already been named by the 3rd millennium BC Astronomical Cuneiform Tablets from Assyria and Babylonia An astronomical diary from Babylon containing astronomical records from the last months of year 175 of the Seleucid Era (137–136 BC). Among the observations reported is a detailed account of the total solar eclipse of 15 April 136 BC. BM 45745. © Trustees of the British Museum Astronomical Cuneiform Tablets from Assyria and Babylonia A lunar ephemeris from Babylon calculated . The tablet covers the years 208–210 of the Seleucid Era (104/103 – 102/101 BC). BM 34580+42690. © Trustees of the British Museum Chartaghis Chartaghi of Niasar, Kashan, Iran “Chahar “ or ”Char” 4 Nevis Chartaghi, Tafresh, Iran “Tagh” Arc “Chartaghi”Squared-Base Arc Botkhaneh Chartaghi, Atashkouh, Iran •More than 50 of them are known in Iran •Age estimation 15002000 years Khaneh-Div Chartaghi, Khorasan, Iran Chartaghi of Niasar Specifications • • • • • Name: Chartaghi Niasar (Squared-Base Arcs). Location: Niasar, West of Kashan, Isfahan Province, Iran (250 km from south of Tehran). Age: ~2000 years. Latitude: 33˚ 58.28′ N. Longitude: 51˚ 08.53′ E. • • • • • Altitude: 1,760 meters. Altitude of the surrounding plain: 380 meters. Orientation of its plan: 11˚ from true north, eastward. Floor area measure: 142 m2. Height: 10.50 m. Length and Width: 11.90 m. Chartaghi of Niasar Summer Solstice Sunrise SS 1 SS 2 Two lines for summer solstice at sunrise. Photography time: Five minutes after sunrise. Chartaghi of Niasar Winter Solstice Sunrise WS Mountain height on the horizon: 2˚. Photography time: Two minutes after sunrise. Chartaghi of Niasar Summer Solstice Sunset ST Mountain height on the horizon: 9˚. Photography time: Ten minutes before the sunset. Chartaghi of Niasar Winter Solstice Sunset Mountain height on the horizon: 7˚. Photography time: Two minutes before the sunset. Chartaghi of Niasar Some more recent… Maragheh Observatory 1259 AD by Khajeh Nasir Tusi's group • Maragheh observatory is an ancient astronomical observatory • It was established in 1259 by Nasir al-Din al-Tusi, an Iranian scientist and astronomer • Located in the heights west of Maragheh, East Azarbaijan province, Iran It was once considered one of the most prestigious observatories in the world Maragheh Observatory Top right: The observatory site before excavation and Bottom Right: ater the first stage of excavation Top right: Model replica of the observatory site Maragheh Observatory • Right: The remnants of the mural quadrant, the observatory’s main instrument. • Left: Auxiliary observational sites close to the main building of the observatory. Some more recent… Radkan Tower 1261 AD by Khajeh Nasir Tusi's group winter solstice sunrise summer solstice sunset Conclusion • The astronomical heritage from Mesopotamia is a tangible moveable heritage, namely cuneiform tablets containing astronomical texts No tangible immovable heritage is known; for example, no buildings have been identified as astronomical observatories or site • There are also many monuments in the area that their astronomical usage are not recorded, but could be suggested from observation and estimation • The more recent observatories, towers,… are also available ( probably partly or mostly destroyed) which are well documented References • HERITAGE SITES OF ASTRONOMY AND ARCHAEOASTRONOMY IN THE CONTEXT OF THE UNESCO WORLD HERITAGE CONVENTION http://www.astronomicalheritage.org/images/content/astroherit/WHCinternal/ch07.pdf http://www.astronomicalheritage.org/images/content/astroherit/WHCinternal/ch10cs1.pdf • • http://ghiasabadi.com/chartaghi.html http://www.jamejamshid.com/radkan.htm