- Ur (/ʊər/; Sumerian: 𒌶𒆠, 𒋀𒀕𒆠, or 𒋀𒀊𒆠 Urim; Akkadian: 𒋀𒀕𒆠 Uru; Arabic: أُوْر, romanized: ʾūr; Hebrew: אוּר) was an important Sumerian city-state in ancient Mesopotamia, located at the site of modern Tell el-Muqayyar (Arabic: تل ٱلْمُقَيَّر) in south Iraq’s Dhi Qar Governorate. Although Ur was once a coastal city near the mouth of the Euphrates on the Persian Gulf, the coastline has shifted and the city is now well inland, on the south bank of the Euphrates, 16 km (10 mi) from Nasiriyah in modern-day Iraq. The city dates from the Ubaid period circa 3800 BC, and is recorded in written history as a city-state from the 26th century BC, its first recorded king being Mesannepada.
- Sextans (Wikipedia)
Sextans is a minor equatorial constellation which was introduced in 1687 by Johannes Hevelius. Its name is Latin for the astronomical sextant, an instrument that Hevelius made frequent use of in his observations.