Delta Geminorum - Wikipedia

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[14] Consequently, Delta Geminorum itself is known as 天樽二 (Tiān Zūn èr, English: the Second Star of Celestial Wine Cup.). It is 0.18 degree south of the ecliptic so it is occasionally occulted by the Moon and, rarely, by a planet; and is eclipsed by the sun from about 10-12 July. [citation needed] In 1930, the dwarf planet Pluto was discovered about 0.5° to the east of this star by American astronomer Clyde Tombaugh. A cooler class K companion is not apparent to the naked eye but clearly visible in a small telescope. In about 1.1 million years, it will make its closest approach at a separation of roughly 6.7 ly (2.1 pc).

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