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## Fifteenth Praabhrut
**The Relative Speed of the Moon, Sun, Planets, Constellations, and Stars**
**Q:** How do these (Moon, Sun, Planets, Constellations, and Stars) move in relation to each other?
**A:** The Moon moves faster than the Sun, the Sun faster than the Planets, the Planets faster than the Constellations, and the Constellations faster than the Stars. The Moon is the slowest of all, and the Stars are the fastest.
**Q:** How many parts of its own circle does the Moon traverse in a Muhurta (48 minutes)?
**A:** The Moon traverses 77/64 parts of its own circle in a Muhurta. Its circle is 100,000 yojanas in circumference.
**Q:** How many parts of its own circle does the Sun traverse in a Muhurta?
**A:** The Sun traverses 18/32 parts of its own circle in a Muhurta. Its circle is 100,000 yojanas in circumference.
**Q:** Which of these (Moon, Sun, Planets, Constellations, and Stars) moves faster or slower than the others?
**A:** The Moon moves faster than the Sun, the Sun faster than the Planets, the Planets faster than the Constellations, and the Constellations faster than the Stars. The Moon is the slowest of all, and the Stars are the fastest.
**Note:** The text does not mention the speed of the Planets. The commentator explains that the Planets have irregular and unpredictable movements, so their speed cannot be calculated in the same way as the Moon, Sun, Constellations, and Stars.
**Commentary:**
The Planets move in a curved and irregular manner, so their speed cannot be calculated in the same way as the Moon, Sun, Constellations, and Stars. The text states that the Moon moves faster than the Sun, the Sun faster than the Planets, and so on. The Planets are all slower than the Moon.
**Further Explanation:**
* The Moon traverses 77/64 parts of its own circle in a Muhurta.
* The Sun traverses 18/32 parts of its own circle in a Muhurta.
* The Planets have irregular and unpredictable movements, so their speed cannot be calculated in the same way as the Moon, Sun, Constellations, and Stars.
* The Constellations are slower than the Planets.
* The Stars are the fastest of all.