VSOP87C Venus Apparent Geocentric Equatorial Ephemeris Demo 1 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 : April 1 to 30 ================================================================= Day R.A. Declination Dist AU V Mag A Diam === ============== =============== ============ ===== ======= 1 1.9758438681 11.6280168244 1.5689589872 -3.92 10.72" 2 2.0536122296 12.0898654311 1.5653324354 -3.92 10.75" 3 2.1316024599 12.5469245732 1.5616567039 -3.92 10.77" 4 2.2098232887 12.9989924851 1.5579317223 -3.92 10.80" 5 2.2882829413 13.4458665347 1.5541573806 -3.92 10.82" 6 2.3669891109 13.8873430537 1.5503335360 -3.92 10.85" 7 2.4459489526 14.3232173363 1.5464600181 -3.92 10.88" 8 2.5251690800 14.7532836890 1.5425366339 -3.92 10.90" 9 2.6046556075 15.1773357587 1.5385631714 -3.93 10.93" 10 2.6844141056 15.5951664321 1.5345394009 -3.93 10.96" 11 2.7644496705 16.0065683847 1.5304650759 -3.93 10.99" 12 2.8447668578 16.4113339288 1.5263399319 -3.93 11.02" 13 2.9253697358 16.8092554822 1.5221636853 -3.93 11.05" 14 3.0062618595 17.2001256960 1.5179360345 -3.93 11.08" 15 3.0874462844 17.5837380376 1.5136566650 -3.93 11.11" 16 3.1689255336 17.9598875596 1.5093252621 -3.93 11.14" 17 3.2507014908 18.3283716809 1.5049415323 -3.93 11.18" 18 3.3327751668 18.6889903912 1.5005052313 -3.93 11.21" 19 3.4151465270 19.0415462303 1.4960161918 -3.93 11.24" 20 3.4978143309 19.3858434884 1.4914743466 -3.93 11.28" 21 3.5807761990 19.7216877153 1.4868797394 -3.93 11.31" 22 3.6640288082 20.0488856110 1.4822325210 -3.93 11.35" 23 3.7475682478 20.3672459827 1.4775329330 -3.93 11.38" 24 3.8313902517 20.6765808474 1.4727812839 -3.94 11.42" 25 3.9154902948 20.9767065230 1.4679779240 -3.94 11.46" 26 3.9998636382 21.2674446452 1.4631232241 -3.94 11.50" 27 4.0845051703 21.5486222945 1.4582175590 -3.94 11.53" 28 4.1694093517 21.8200722831 1.4532612970 -3.94 11.57" 29 4.2545700758 22.0816329917 1.4482547917 -3.94 11.61" 30 4.3399805809 22.3331482814 1.4431983763 -3.94 11.65" =================================================================

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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