History Of Astronomy BC

By Tacos1998
  • Period: 100 to

    YEARS B.C.

  • Earliest recorded observation of sunspots
    364

    Earliest recorded observation of sunspots

    The earliest recorded observation of sunspots made were by Astronomer Gan De dating from about 364 BC
  • A nova was recorded
    532

    A nova was recorded

    A nova was recorded in Records of the Grand Historian and Zuo Zhuan
  • First known star catolauges
    Jan 1, 1200

    First known star catolauges

    First Babylonian star catolauges dating from about 1200 B.C.
  • Phenomenea of a planet is called periodic
    Jan 1, 1570

    Phenomenea of a planet is called periodic

    The tablet of Ammi-Saduqa that lists the first and last visible risings of Venus over about 21 years is the earliest evidence that phenomena of a planet was reconized as periodic
  • The use of Mathmatics to determine the lenght of daylight

    The use of Mathmatics to determine the lenght of daylight

    Babylonian tablets that documented the application of mathmatics to figure out the length of daylight over a solar tear
  • First known/recorded solar eclipse

    First known/recorded solar eclipse

    In a Chinese book of astronomical history are the earliest known records of a solar eclipse
  • Stonehedge is started

    Stonehedge is started

    The first stage of Stonehedge was built and was believed to be a lunar/solar observatory
  • The use of a sexagesimal

    The use of a sexagesimal

    Sumerians used a sexagesimal (base 60) place-value number system, which simplified the task of recording very large and very small numbers
  • 365 day calender in use

    365 day calender in use

    The Egyptians created a claneder having 365 days on it
  • Cuneiform emerged from the Sumerians around 3500–3000 BC

    Cuneiform emerged from the Sumerians around 3500–3000 BC

    A form of writting used to document Astonomy dating from 3500-3000 BC