DescriptionConjunction between Mars and Jupiter on July4th,929.png
English: View of the conjunction between Mars and Jupiter on July 4, 929 for an observer at latitude 50°N and longitude 9°E at 23h CET.
In the year 929, a triple conjunction between the planets Mars and Jupiter took place. At the first conjunction on May 26, 929, -1.8 mag Mars was 3.1° south of -2.6 mag Jupiter. The second conjunction occurred on July 4, 929, with -2.8 mag Mars passing Jupiter, whose brightness was also -2.8 mag, 5.7° southwards. Mars passed Jupiter for the third time on August 18, 929, when the -1.9 mag bright red planet stood 4.7° southly of the largest planet in the solar system.
At the conjunction between Mars and Jupiter on July 4, 929, both planets were almost at their maximum possible brightness. In all other conjunctions between two outer planets at least one of the involved celestial bodies had a lower brightness than Mars and Jupiter at their conjunction on July 4th 929.
On July 4th, 929 Saturn, whose brightness was 0.1 mag, could be seen west of the conjunction between Mars and Jupiter in the constellation Sagittarius.
The star map also includes the ecliptic and a line for the elevation of 10°.
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{{Information |Description=View of the conjunction between Mars and Jupiter on July 4, 929 for an observer at latitude 50°N and longitude 9°E at 23h CET. In the year 929, a triple conjunction between the planets Mars and Jupiter took place. At the first conjunction on May 26, 929, -1.8 mag Mars was 3.1° south of -2.6 mag Jupiter. The second conjunction occurred on July 4, 929, with -2.8 mag Mars passing Jupiter, whose brightness was also -2.8 mag, 5.7° southwards. Mars passed Jupiter for the...