Asteroid 209 Dido, discovered by C H F Peters on October 22nd 1879, is a large, C-type main belt asteroid with a very low albedo. It is about 140 km (87 miles) in diameter, and completes one rotation every eight hours of its 2039 day journey around the Sun.
Dido was the mythological queen and founder of Carthage, and sister of Pygmalion (the guy who fell in love with a statue he had carved). She is best known for (i) her affair with Aeneas, the Trojan hero, and (ii) being the subject of an opera by Henry Purcell.
Today’s artistic offering is by Giovanni Francesco Barbieri (1591 – 1666), the self-taught, cross-eyed, fast painting Italian genius, more commonly known as Guercino (meaning “squinter”), responsible for more than 100 altarpieces and nearly 150 paintings.
1969 ⇒ Splashdown of Apollo VII, the first manned Apollo mission.
1905 ⇒ Birth of Karl Jansky, one of the founding fathers of radio astronomy.