Showing posts with label Equation of Time. Show all posts
Showing posts with label Equation of Time. Show all posts

Thursday, March 29, 2018

S&P 500 Index vs Equation of Time | 2015 - 2018


The apparent motion of the Sun along the plane of the ecliptic is not regular (Kepler's laws of planetary motion). This non-uniform motion is caused for two reasons: (1.)The Earth's orbit is not circular but elliptical (Eccentricity), and (2.) the Earth's axis is tilted about 23 degrees north and south from the ecliptic (Obliquity). Mean Solar Time assumes that the orbit is circular, that there is no tilt, and that each day of the year is of exact equal length (60 x 60 x 24 = 86,400 seconds). However this is not the case: The real astronomical Apparent Solar Time differs from the Mean Solar Time (the time of our clocks) by the Equation of Time. This equation describes the discrepancy between the Clock Time and the time indicated by a sundial (the word equation is used in the medieval sense of reconcile a difference) in a given place at the same time. The Clock Time actually matches the Apparent Solar Time only during four moments per year (December 25th, April 15th, June 13th, September 1st) while on November 3rd the Clock Time in New York City is as much as 16 minutes behind and on February 11th more than 14 minutes ahead of the real astronomical time. 

Days when the Equation of Time is at zero, at extremes or even at midpoints between peaks and troughs oftentimes coincide with a change in trend in financial markets (at least short term). The Equation of Time for New York City will be at zero on April 15 (Sun) and at a peak during May 14 (Mon). The midpoint between the trough on February 11 (Sun) and the peak on May 14 (Mon) is today, March 29 (Thu).

Tuesday, January 10, 2012

Natural Trading Days for 2012

... derived from the Equation of Time & the Declination of the Sun

Astronomical cycles such as the Mercury Cycles, the cycle of the star Sirius, the Lunar Cycles, the Earth/Sun Cycles and the Equation of Time (EOT) can be used for timing potential turn dates in the stock, forex and commodities markets.

Earth in Perigee = Jan 05 
EOT @ minimum  = −14 min 15 sec  = 11 February 
SPRING EQUINOX = March 20
EOT @ zero = 15 April
EOT @ maximum = +03 min 41 sec = 14 May
EOT @ zero  = 13 June
 
SUMMER SOLSTICE = June 20
Earth in Apogee  Jul 05
EOT @ minimum = −06 min 30 sec = 26 July
EOT @ zero = 1 September
 
FALL EQUINOX = September 22
EOT @ maximum = +16 min 25 sec = 3 November 
WINTER SOLSTICE = December 21
EOT @ zero = 25 December