Jupiter

The Second Temple for Venus Erycina. April 23, 181 BC.

The Capitoline Hill was earlier known as Mons Saturnius, dedicated to the god Saturn. The word Capitolium first referred to the temple of Jupiter Optimus Maximus later built here, and afterwards it was used for the whole hill (and even other temples of Jupiter on other hills), thus Mons Capitolinus (the adjective noun of Capitolium). In an etiological myth, ancient sources connect the name to caput (“head”, “summit”) and the tale was that, when laying the foundations for the temple, the head of a man was found, some sources even saying it was the head of some Tolus or Olus. The Capitolium was regarded by the Romans as indestructible, and was adopted as a symbol of eternity. At this hill, the Sabines, creeping to the Citadel, were let in by the Roman maiden Tarpeia. ...

Halley´s approach. April 10, 1910.

Comet Halley, officially designated 1P/Halley, is a short-period comet visible from Earth every 75–76 years. Halley is the only known short-period comet that is regularly visible to the naked eye from Earth, and the only naked-eye comet that might appear twice in a human lifetime. Halley last appeared in the inner parts of the Solar System in 1986 and will next appear in mid-2061 to 2062. Halley’s returns to the inner Solar System have been observed and recorded by astronomers since at least 240 BC. Clear records of the comet’s appearances were made by Chinese, Babylonian, and medieval European chroniclers, but, at those times, were not recognized as reappearances of the same object. The comet’s periodicity was first determined in 1705 by English astronomer Edmond Halley,...

The Galilean Moons. January 7, 1610.

As a result of the improvements Galileo Galilei had made to his telescope, now with a magnifying capability of 20x, he was able to observe celestial bodies more distinctly than it had been ever possible. On January 7, 1610, Galileo wrote a letter in which he mentioned Jupiter´s moons (actually known as the Galilean Moons) for the first time. At the time, he saw only three of the four and believed them to be fixed stars near Jupiter. In later observations he discovered the fourth moon and observed that they were not fixed stars, but rather bodies orbiting Jupiter. In 1605, Galileo had been employed as a mathematics tutor for Cosimo de’ Medici, and seeking patronage from his now-wealthy former student and his powerful family, used the discovery of Jupiter’s moons to gain it. On F...

Festival of Pax – January 3

Pax was the Roman goddess of peace, carried over from the Greek goddess Eirene. She was the daughter of Jupiter (Zeus) and Justitia (Themis), the goddess of justice and order. Although sources have conflicting dates, one of the dates listed is January 3 as being when the Festival of Pax was celebrated. Celebrated as Pax Romana and Pax Augusta, she was celebrated since the 2nd century BC. In hopes of blessing of peace, images were placed at the feet of Pax during the festival to promote positive energy in their interactions. Augustus had a sanctuary dedicated to Pax erected on the Campus Martius, called the Ara Pacis. It was dedicated on January 30, 9 BC – January 30 being one of the other possible dates listed for the annual festival. Along with the altar in Rome, Seutonius writes there wa...

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