Solar eclipse of April 11th, 369 BC Chr.

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Solar eclipse of April 11th, 369 BC Chr.
classification
Type Ring-shaped
Saros cycle 52
Gamma value 0.4160
Greatest eclipse
Duration 5 minutes 35 seconds
location 30 ° 0 ′  N , 99 ° 6 ′  E Coordinates: 30 ° 0 ′  N , 99 ° 6 ′  E
time April 11 -368 4:50:24   UT
size 0.9467

The solar eclipse of April 11, 369 BC, noted in Babylonian sources . Chr. Belongs to the genus of GADEx texts . This record acquired particular importance through reference to the Achaemenid King Artaxerxes II. Today the cuneiform tablets BM 37097 and BM 37211 are in the British Museum in London .

The astronomical event mentioned was an annular solar eclipse that could also be observed in the region of Babylon . By checking with other historical eclipses, it was found that the historical dates deviate from the back-calculated values. The corresponding time difference is referred to as " Δ T ".

Taking into account the Δ T , the solar eclipse in Babylon was on April 11  ,  369 BC. Visible from sunrise at 5:45 am, at around 6:38 am the maximum eclipse began; The solar eclipse ended around 7:38 a.m. The Babylonian scribe of the cuneiform text also noted other observations:

“[Artaxerxes II. 35th year: Twelfth month (Addaru) , ... end of the solar eclipse ...]. During this time Jupiter was in ( constellation ) Leo . [...] the seventh day of the first month (Nisannu) of the 36th year, the water level of the river [...] two cubits (and) eight finger widths. "

- BM 37097 and BM 37211

The cuneiform texts BM 37097 and BM 37211 have only survived in very fragments. An identification with Artaxerxes II could not be made unequivocally at first, since Artaxerxes I also ruled for more than 36 years. Due to the additional information regarding the mention of Jupiter, which was located in the constellation Leo at the time of the solar eclipse, the solar eclipse could definitely be assigned to Artaxerxes II. A comparable constellation was impossible for several years under Artaxerxes I from the ninth month of his 35th year of reign. In addition, the inscriptions show that the first year of Artaxerxes II's reign was on the first Nisannu in April of the year 404 BC. Began.

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Remarks

  1. a b Date in the proleptic Julian calendar .
  2. 4 hours and 10 minutes.
  3. ^ Francis Richard Stephenson: Historical Eclipses and Earth's rotation . P. 138.