Hepton (astronomy)

The hepton is a period equal to 41 synodic months, approximately 1,210.73 days. It is equal to 5 saros minus 3 inex. It corresponds to:

• 1,210.73 solar days
• 3.317 years
• 41 synodic months
• 44.492 draconic months
• 3.5 eclipse years (7 eclipse seasons)
• 43.939 anomalistic months

The 3.5 eclipse years means that if there is a solar eclipse (or lunar eclipse), then after one hepton a new moon will take place, though at alternating nodes of the orbit of the Moon as it is 3 eclipse years plus 1 lunar semester, though under any such circumstances, another eclipse can occur.

See also

• List of saros series for lunar eclipses
• Eclipse cycle
• Solar eclipse
• Lunar eclipse
• Metonic cycle

References

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