VSOP87C Venus Apparent Geocentric Equatorial Ephemeris Demo 2 PHP Program by Jay Tanner - 2026

ENTER  Year/Month

Double-Click Within Text Area to Select ALL Text ================================================================= VSOP87C VENUS APPARENT GEOCENTRIC EQUATORIAL EPHEMERIS DEMO Valid For Gregorian Years 1583 AD to 5999 AD ================================================================= VENUS Apparent Geocentric Equatorial Ephemeris For 00h TT on Each Date Year : 2026 (Gregorian Calendar) Month : May 1 to 31 ================================================================= Day R.A. Declination Dist AU V Mag A Diam === ============== =============== ============ ===== ======= 1 04h 25m 32.28s +22° 34' 28.08" 1.4380923590 -3.94 11.70" 2 04h 30m 41.47s +22° 48' 19.60" 1.4329370202 -3.94 11.74" 3 04h 35m 51.48s +23° 01' 33.38" 1.4277326120 -3.94 11.78" 4 04h 41m 02.25s +23° 14' 08.93" 1.4224793587 -3.94 11.82" 5 04h 46m 13.76s +23° 26' 05.78" 1.4171774590 -3.94 11.87" 6 04h 51m 25.97s +23° 37' 23.49" 1.4118270869 -3.95 11.91" 7 04h 56m 38.83s +23° 48' 01.61" 1.4064283934 -3.95 11.96" 8 05h 01m 52.29s +23° 57' 59.74" 1.4009815063 -3.95 12.01" 9 05h 07m 06.31s +24° 07' 17.49" 1.3954865303 -3.95 12.05" 10 05h 12m 20.84s +24° 15' 54.49" 1.3899435461 -3.95 12.10" 11 05h 17m 35.82s +24° 23' 50.39" 1.3843526075 -3.95 12.15" 12 05h 22m 51.21s +24° 31' 04.90" 1.3787137383 -3.95 12.20" 13 05h 28m 06.95s +24° 37' 37.71" 1.3730269302 -3.95 12.25" 14 05h 33m 22.98s +24° 43' 28.56" 1.3672921455 -3.95 12.30" 15 05h 38m 39.24s +24° 48' 37.25" 1.3615093296 -3.96 12.35" 16 05h 43m 55.69s +24° 53' 03.59" 1.3556784342 -3.96 12.41" 17 05h 49m 12.24s +24° 56' 47.43" 1.3497994500 -3.96 12.46" 18 05h 54m 28.83s +24° 59' 48.66" 1.3438724420 -3.96 12.52" 19 05h 59m 45.40s +25° 02' 07.20" 1.3378975782 -3.96 12.57" 20 06h 05m 01.87s +25° 03' 43.00" 1.3318751449 -3.96 12.63" 21 06h 10m 18.17s +25° 04' 36.04" 1.3258055447 -3.96 12.69" 22 06h 15m 34.22s +25° 04' 46.32" 1.3196892790 -3.97 12.74" 23 06h 20m 49.97s +25° 04' 13.87" 1.3135269226 -3.97 12.80" 24 06h 26m 05.33s +25° 02' 58.77" 1.3073190969 -3.97 12.87" 25 06h 31m 20.26s +25° 01' 01.12" 1.3010664481 -3.97 12.93" 26 06h 36m 34.67s +24° 58' 21.06" 1.2947696325 -3.97 12.99" 27 06h 41m 48.52s +24° 54' 58.78" 1.2884293073 -3.97 13.05" 28 06h 47m 01.74s +24° 50' 54.47" 1.2820461249 -3.98 13.12" 29 06h 52m 14.26s +24° 46' 08.39" 1.2756207280 -3.98 13.19" 30 06h 57m 26.03s +24° 40' 40.79" 1.2691537454 -3.98 13.25" 31 07h 02m 37.00s +24° 34' 31.98" 1.2626457884 -3.98 13.32" =================================================================

SOME GENERAL INFORMATION ABOUT THIS VSOP87 VENUS EPHEMERIS DEMO The purpose of this program is to compute an apparent geocentric equatorial Venus ephemeris for any Gregorian calendar date within the ephemeris span from 1583 to 5999 AD based on the VSOP87 theory. ------- CAVEAT: Be cautious when entering the year/month values. This program is only a simplified demo and does NOT do extensive error checking for invalid arguments. Valid input arguments should return valid results. Whenever possible, compare against known check values or against another source of similar VSOP87C computations for consistency. ---------------- TIME SCALE USED: The program uses the system clock for the time (UTC). However, the actual time scale used is the TT scale. Without any Delta T adjustment, UTC is being treated as equivalent to TT. --------------------------------------------------------------------------- SOURCE CODE: There is a link below to the complete PHP source code for this program.

Program by Jay Tanner Revised: Thursday, January 01, 1970 at 12:00:00 AM UTC

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