File:Planets in early 1524.png

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    Summary

    Description
    English: The ecliptic longitudes of the sun, the moon, Mercury, Venus, Mars, Jupiter, and Saturn were calculated for every tenth day using w:JPL Horizons On-Line Ephemeris System. The ecliptic longitude of the sun was then subtracted.

    East is to the left (as it is when looking at planets from northern latitudes). Time goes downwards, as in a calendar or agenda. The grid lines for the dates represent midday GMT for the indicated date.

    This graph is based on a subset of the data for 2000 BC to AD 2201. The command lines for Horizons were: For the sun:

    https://ssd.jpl.nasa.gov/api/horizons.api?format=text&COMMAND=Sun&START_TIME=%272000BC/1/1%2012:0%27&STOP_TIME=%271BC-Dec-07%27&STEP_SIZE=%2710%20days%27&QUANTITIES=31&ANG_FORMAT=DEG (for 2000 BC to 1 BC)

    https://ssd.jpl.nasa.gov/api/horizons.api?format=text&COMMAND=Sun&START_TIME=%271BC/12/12%2012:0%27&STOP_TIME=%272201-Feb-07%27&STEP_SIZE=%2710%20days%27&QUANTITIES=31&ANG_FORMAT=DEG (for 1 BC to AD 2201)

    For the moon:

    https://ssd.jpl.nasa.gov/api/horizons.api?format=text&COMMAND=301&START_TIME=%272000BC/1/1%2012:0%27&STOP_TIME=%271BC-Dec-07%27&STEP_SIZE=%2710%20days%27&QUANTITIES=31&ANG_FORMAT=DEG (for 2000 BC to 1 BC)

    https://ssd.jpl.nasa.gov/api/horizons.api?format=text&COMMAND=301&START_TIME=%271BC/12/12%2012:0%27&STOP_TIME=%272201-Feb-07%27&STEP_SIZE=%2710%20days%27&QUANTITIES=31&ANG_FORMAT=DEG (for 1 BC to AD 2201)

    For Mercury:

    https://ssd.jpl.nasa.gov/api/horizons.api?format=text&COMMAND=1&START_TIME=%272000BC/1/1%2012:0%27&STOP_TIME=%271BC-Dec-07%27&STEP_SIZE=%2710%20days%27&QUANTITIES=31&ANG_FORMAT=DEG (for 2000 BC to 1 BC)

    https://ssd.jpl.nasa.gov/api/horizons.api?format=text&COMMAND=1&START_TIME=%271BC/12/12%2012:0%27&STOP_TIME=%272201-Feb-07%27&STEP_SIZE=%2710%20days%27&QUANTITIES=31&ANG_FORMAT=DEG (for 1 BC to AD 2201)

    For Venus:

    https://ssd.jpl.nasa.gov/api/horizons.api?format=text&COMMAND=2&START_TIME=%272000BC/1/1%2012:0%27&STOP_TIME=%271BC-Dec-07%27&STEP_SIZE=%2710%20days%27&QUANTITIES=31&ANG_FORMAT=DEG (for 2000 BC to 1 BC)

    https://ssd.jpl.nasa.gov/api/horizons.api?format=text&COMMAND=2&START_TIME=%271BC/12/12%2012:0%27&STOP_TIME=%272201-Feb-07%27&STEP_SIZE=%2710%20days%27&QUANTITIES=31&ANG_FORMAT=DEG (for 1 BC to AD 2201)

    For Mars:

    https://ssd.jpl.nasa.gov/api/horizons.api?format=text&COMMAND=4&START_TIME=%272000BC/1/1%2012:0%27&STOP_TIME=%271BC-Dec-07%27&STEP_SIZE=%2710%20days%27&QUANTITIES=31&ANG_FORMAT=DEG (for 2000 BC to 1 BC)

    https://ssd.jpl.nasa.gov/api/horizons.api?format=text&COMMAND=4&START_TIME=%271BC/12/12%2012:0%27&STOP_TIME=%272201-Feb-07%27&STEP_SIZE=%2710%20days%27&QUANTITIES=31&ANG_FORMAT=DEG (for 1 BC to AD 2201)

    For Jupiter:

    https://ssd.jpl.nasa.gov/api/horizons.api?format=text&COMMAND=5&START_TIME=%272000BC/1/1%2012:0%27&STOP_TIME=%271BC-Dec-07%27&STEP_SIZE=%2710%20days%27&QUANTITIES=31&ANG_FORMAT=DEG (for 2000 BC to 1 BC)

    https://ssd.jpl.nasa.gov/api/horizons.api?format=text&COMMAND=5&START_TIME=%271BC/12/12%2012:0%27&STOP_TIME=%272201-Feb-07%27&STEP_SIZE=%2710%20days%27&QUANTITIES=31&ANG_FORMAT=DEG (for 1 BC to AD 2201)

    For Saturn:

    https://ssd.jpl.nasa.gov/api/horizons.api?format=text&COMMAND=6&START_TIME=%272000BC/1/1%2012:0%27&STOP_TIME=%271BC-Dec-07%27&STEP_SIZE=%2710%20days%27&QUANTITIES=31&ANG_FORMAT=DEG (for 2000 BC to 1 BC)

    https://ssd.jpl.nasa.gov/api/horizons.api?format=text&COMMAND=6&START_TIME=%271BC/12/12%2012:0%27&STOP_TIME=%272201-Feb-07%27&STEP_SIZE=%2710%20days%27&QUANTITIES=31&ANG_FORMAT=DEG (for 1 BC to AD 2201)

    (Horizons didn't permit having as many dates as there would be doing the whole 4200 years in one go,
    Date
    Source Own work
    Author Eric Kvaalen

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    Captions

    Ecliptic longitude relative to that of the sun for the planets and the moon in AD 1524

    Items portrayed in this file

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    16 December 2025

    44,683 byte

    340 pixel

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    Date/TimeThumbnailDimensionsUserComment
    current20:05, 16 December 2025Thumbnail for version as of 20:05, 16 December 2025605 × 340 (44 KB)wikimediacommons>Eric KvaalenUploaded own work with UploadWizard

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