falls on 0° of Leo at July 20 in the Julian calendar, that is July 22/23 on the Gregorian calendar. Ancient India In India, the division of the zodiac into 36 ten degree portions is called either the drekkana (drekkāṇa),the dreshkana (dreṣkāṇa), or the drikana (dṛkāṇa). The iconography and use of the drekkanas is mention earliest by Sphujidhvaja in Yavanajataka (269–270 CE), and given detailed treatment by Varahamihira in his Brihat-Samhita (550 CE). Modern scholars believe the decans were imported into India through the Greeks, who learned about them from the Egyptians. See also Asterism (astronomy) Astronomical ceiling of Senemut Tomb Astrotheology Chinese zodiac Line of advantage Palazzo Schifanoia, Ferrara Footnotes References Further reading External links Ancient Egyptian Astronomy Database (Symons, Cockcroft, Bettencourt & Koykka, 2013) Egypt Astronomy/Astrology: The decans Asterisms (astronomy) Constellations Ancient astronomy Technical factors of Chinese astrology Technical factors of Western astrology Egyptian calendar