This video shows a simulation of the Antikythera mechanism for the year 2025.

0:27 JAN 10 Venus greatest eastern elongation
0:30 JAN 16 Mars in opposition
1:12 FEB 24 Mars stationary, then prograde
1:17 MAR 02 Venus stationary, then retrograde
1:25 MAR 14 lunar eclipse
1:42 MAR 29 partial solar eclipse
1:59 APR 13 Venus stationary, then prograde
2:48 JUN 01 Venus greatest western elongation
3:31 JUL 13 Saturn stationary, then retrograde
4:22 SEP 07 lunar eclipse
4:38 SEP 21 partial solar eclipse
4:41 SEP 21 Saturn in opposition
5:18 OCT 29 Mercury greatest eastern elongation
5:31 NOV 11 Jupiter stationary, then retrograde
5:57 DEC 07 Mercury greatest western elongation
6:30 JAN 10 Jupiter in opposition

The Antikythera mechanism was an ancient analog mechanical computer, originally built around 2100 years ago. Its functionality included calendrical calculations in the Greek lunisolar calendar with the Metonic cycle of 235 lunar months in 19 solar years as the main concept. Four Metonic cycles formed a Callippic cycle of 76 years. The input was based on the Egyptian solar calendar with 365 days. The Olympiad cycle of four years indicated which Panhellenic Games were taking place that year. The Saros cycle with 223 lunar months was used for the prediction of lunar and solar eclipses. The Exeligmos dial gave an additional indication of when and where solar eclipses might be seen. The mechanism probably also included a geocentric planetarium. In addition to the sun and moon, it probably displayed the positions of the five known planets in front of the constellations of the zodiac.

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