Xi Sagittarii

The Bayer designation Xi Sagittarii (ξ Sagittarii) is shared by two stars, ξ¹ Sagittarii and ξ² Sagittarii, in the constellation Sagittarius, separated by 0.46° in the sky. Because they are close to the ecliptic, they can be occulted by the Moon^[1] and, very rarely, by planets. The last occultation of ξ² Sagittarii by a planet took place on 22 December 1810, when it was occulted by Venus.^{[citation needed]}

• ξ¹ Sagittarii^[2]
• ξ² Sagittarii^[3]

Naming

In Chinese, 建 (Jiàn), meaning Establishment, refers to an asterism consisting of ξ² Sagittarii, ο Sagittarii, π Sagittarii, 43 Sagittarii, ρ¹ Sagittarii, and υ Sagittarii. Consequently, ξ² Sagittarii itself is known as 建一 (Jiàn yī, English: the First Star of Establishment.)^[4]