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 : August 1 to 31 ================================================================= Day R.A. Declination Dist AU V Mag A Diam === ============== =============== ============ ===== ======= 1 11h 38m 09.21s +2° 20' 34.07" 0.8001612867 -4.22 21.02" 2 11h 41m 49.36s +1° 51' 11.03" 0.7921530797 -4.23 21.23" 3 11h 45m 28.20s +1° 21' 47.27" 0.7841430659 -4.24 21.45" 4 11h 49m 05.73s +0° 52' 23.38" 0.7761320293 -4.24 21.67" 5 11h 52m 41.96s +0° 22' 59.95" 0.7681207030 -4.25 21.90" 6 11h 56m 16.88s -0° 06' 22.44" 0.7601097634 -4.26 22.13" 7 11h 59m 50.50s -0° 35' 43.21" 0.7520998273 -4.26 22.36" 8 12h 03m 22.82s -1° 05' 01.76" 0.7440914517 -4.27 22.60" 9 12h 06m 53.83s -1° 34' 17.47" 0.7360851412 -4.28 22.85" 10 12h 10m 23.52s -2° 03' 29.74" 0.7280813640 -4.29 23.10" 11 12h 13m 51.87s -2° 32' 37.90" 0.7200805774 -4.29 23.36" 12 12h 17m 18.87s -3° 01' 41.33" 0.7120832612 -4.30 23.62" 13 12h 20m 44.49s -3° 30' 39.35" 0.7040899520 -4.31 23.89" 14 12h 24m 08.72s -3° 59' 31.30" 0.6961012721 -4.31 24.16" 15 12h 27m 31.52s -4° 28' 16.51" 0.6881179480 -4.32 24.44" 16 12h 30m 52.87s -4° 56' 54.32" 0.6801408160 -4.33 24.73" 17 12h 34m 12.73s -5° 25' 24.06" 0.6721708162 -4.34 25.02" 18 12h 37m 31.06s -5° 53' 45.05" 0.6642089798 -4.34 25.32" 19 12h 40m 47.83s -6° 21' 56.62" 0.6562564156 -4.35 25.63" 20 12h 44m 02.98s -6° 49' 58.08" 0.6483142975 -4.36 25.94" 21 12h 47m 16.48s -7° 17' 48.77" 0.6403838571 -4.37 26.26" 22 12h 50m 28.26s -7° 45' 27.99" 0.6324663802 -4.38 26.59" 23 12h 53m 38.27s -8° 12' 55.07" 0.6245632055 -4.38 26.93" 24 12h 56m 46.45s -8° 40' 09.31" 0.6166757254 -4.39 27.27" 25 12h 59m 52.74s -9° 07' 10.03" 0.6088053864 -4.40 27.63" 26 13h 02m 57.08s -9° 33' 56.53" 0.6009536896 -4.41 27.99" 27 13h 05m 59.38s -10° 00' 28.13" 0.5931221882 -4.41 28.36" 28 13h 08m 59.57s -10° 26' 44.12" 0.5853124835 -4.42 28.74" 29 13h 11m 57.58s -10° 52' 43.82" 0.5775262169 -4.43 29.12" 30 13h 14m 53.32s -11° 18' 26.54" 0.5697650595 -4.44 29.52" 31 13h 17m 46.71s -11° 43' 51.58" 0.5620307003 -4.45 29.93" =================================================================

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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