File:Planets in 1953 BC.png

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Planets_in_1953_BC.png (605 × 340 pixels, file size: 42 KB, MIME type: image/png)

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.

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
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Author Eric Kvaalen

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Captions

Planets and moon in 1953 BC

Items portrayed in this file

depicts

inception

7 December 2025

media type

image/png

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Date/TimeThumbnailDimensionsUserComment
current18:40, 7 December 2025Thumbnail for version as of 18:40, 7 December 2025605 × 340 (42 KB)wikimediacommons>Eric KvaalenTop of graph was cut off for some reasom.

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