The Surya Siddhanta is an ancient Indian astronomical text that contains detailed information on astronomy, including the positions of stars, planets, and the sun and moon.

The Long Count is a Mayan calendar that was influenced by Indian astronomy. It is a vigesimal (base-20) calendar that was used to record long periods of time.

The Mayans adopted several Indian astronomical concepts, including eclipses, the zodiac, and nakshatras.

Indian astronomy introduced the concept of zero to the Mayans, which had a significant impact on the development of Mayan mathematics.

The Mayans adopted the gnomon, a simple astronomical instrument used to measure the altitude of the sun, from Indian astronomy.

Indian astronomy influenced the design of Mayan temples and pyramids, the orientation of Mayan cities, and the construction of Mayan observatories.

Brahmagupta is believed to have visited the Mayan civilization in the 6th century CE.

Copán was a major center of astronomical research in the Mayan civilization.

The Mayans used the Saros cycle, a period of 18 years and 11 days, to predict eclipses.

Indian astronomy introduced the concept of zodiac signs, planetary influences, and horoscopes to the Mayans.

The Mayans used the tithi, a lunar day, to measure time.

Indian astronomy influenced the Mayan creation myth, the Mayan belief in reincarnation, and the Mayan belief in a supreme being.

The Mayans used the nakshatras, the 27 lunar mansions, to predict the weather.

Indian astronomy influenced the Mayan planting and harvesting seasons, the Mayan irrigation systems, and the Mayan crop rotation techniques.

The Mayans used the nakshatras, the 27 lunar mansions, to navigate the seas.