This program computes the local date and time of aphelion and perihelion of the Earth for any given Gregorian year from 1600 to 2200.  To obtain the local times, the ΔT (Delta T) estimate is applied to the time zone adjustment , according to the NASA polynomials for Delta T.

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Year (1600 to 2200) =            Local Time = UT  :        

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PERIHELION of 2024 (Local Std. Time = UTC-05:00, Applied Delta T = +00:01:14) 2024 Jan 02 - Earth at perihelion at local time 19:38:12 PERIHELION DISTANCE, GEOCENTRIC EQUATORIAL COORDINATES and ORBITAL SPEED Min Distance = 0.983307001 AU = 147.100634 Mkm = 91.404096 Mmi Right Ascension = 18h 52m 38s = 18.877094000h = 283.156410006° Declination = -22° 53' 14" = -22.887212922° Orbital Speed = 30.286 km/sec = 109030 km/h = 18.819 mi/sec = 67748 mi/h ================================================================================ APHELION of 2024 (Local Std. Time = UTC-05:00, Applied Delta T = +00:01:14) 2024 Jul 05 - Earth at aphelion at local time 00:05:50 APHELION DISTANCE, GEOCENTRIC EQUATORIAL SOLAR COORDINATES and ORBITAL SPEED Max Distance = 1.016725494 AU = 152.099969 Mkm = 94.510539 Mmi Right Ascension = 06h 59m 26s = 6.990469275h = 104.857039126° Declination = +22° 44' 09" = 22.735824297° Orbital Speed = 29.291 km/sec = 105446 km/h = 18.200 mi/sec = 65521 mi/h ================================================================================ Perihelion to Aphelion Interval = 184.1858565 days = 184d 04:27:38 ================================================================================