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 : March 1 to 31 ================================================================= Day R.A. Declination Dist AU V Mag A Diam === ============== =============== ============ ===== ======= 1 23h 37m 13.75s -3° 56' 30.95" 1.6571674669 -3.91 10.15" 2 23h 41m 47.39s -3° 26' 01.46" 1.6550189272 -3.91 10.16" 3 23h 46m 20.60s -2° 55' 26.34" 1.6528267470 -3.91 10.18" 4 23h 50m 53.43s -2° 24' 46.31" 1.6505908279 -3.91 10.19" 5 23h 55m 25.93s -1° 54' 02.09" 1.6483110027 -3.91 10.20" 6 23h 59m 58.14s -1° 23' 14.38" 1.6459870425 -3.91 10.22" 7 00h 04m 30.11s -0° 52' 23.91" 1.6436186670 -3.91 10.23" 8 00h 09m 01.88s -0° 21' 31.39" 1.6412055567 -3.91 10.25" 9 00h 13m 33.50s +0° 09' 22.44" 1.6387473632 -3.91 10.26" 10 00h 18m 05.01s +0° 40' 16.86" 1.6362437176 -3.91 10.28" 11 00h 22m 36.45s +1° 11' 11.13" 1.6336942357 -3.91 10.30" 12 00h 27m 07.86s +1° 42' 04.53" 1.6310985207 -3.91 10.31" 13 00h 31m 39.30s +2° 12' 56.32" 1.6284561642 -3.91 10.33" 14 00h 36m 10.79s +2° 43' 45.75" 1.6257667471 -3.91 10.35" 15 00h 40m 42.38s +3° 14' 32.08" 1.6230298397 -3.91 10.36" 16 00h 45m 14.12s +3° 45' 14.57" 1.6202450050 -3.91 10.38" 17 00h 49m 46.03s +4° 15' 52.47" 1.6174118057 -3.92 10.40" 18 00h 54m 18.18s +4° 46' 25.03" 1.6145298159 -3.92 10.42" 19 00h 58m 50.58s +5° 16' 51.51" 1.6115986386 -3.92 10.44" 20 01h 03m 23.29s +5° 47' 11.15" 1.6086179270 -3.92 10.46" 21 01h 07m 56.35s +6° 17' 23.21" 1.6055874038 -3.92 10.48" 22 01h 12m 29.79s +6° 47' 26.94" 1.6025068771 -3.92 10.50" 23 01h 17m 03.65s +7° 17' 21.60" 1.5993762466 -3.92 10.52" 24 01h 21m 37.97s +7° 47' 06.43" 1.5961954992 -3.92 10.54" 25 01h 26m 12.78s +8° 16' 40.67" 1.5929646956 -3.92 10.56" 26 01h 30m 48.11s +8° 46' 03.57" 1.5896839513 -3.92 10.58" 27 01h 35m 24.00s +9° 15' 14.38" 1.5863534143 -3.92 10.60" 28 01h 40m 00.49s +9° 44' 12.33" 1.5829732452 -3.92 10.63" 29 01h 44m 37.60s +10° 12' 56.69" 1.5795435990 -3.92 10.65" 30 01h 49m 15.37s +10° 41' 26.72" 1.5760646112 -3.92 10.67" 31 01h 53m 53.84s +11° 09' 41.69" 1.5725363857 -3.92 10.70" =================================================================

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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