VSOP87C Venus Apparent Geocentric Equatorial Ephemeris Demo 2
PHP Program by Jay Tanner - 2024
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================================================================= 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 : 2024 (Gregorian Calendar) Month : December 1 to 31 ================================================================= Day R.A. Declination Dist AU V Mag A Diam === ============== =============== ============ ===== ======= 1 19h 39m 54.04s -23° 56' 04.31" 0.9741320497 -4.16 17.27" 2 19h 44m 55.41s -23° 43' 55.06" 0.9671415689 -4.17 17.39" 3 19h 49m 55.34s -23° 31' 07.49" 0.9601337005 -4.17 17.52" 4 19h 54m 53.76s -23° 17' 42.18" 0.9531084939 -4.18 17.65" 5 19h 59m 50.62s -23° 03' 39.76" 0.9460660453 -4.18 17.78" 6 20h 04m 45.88s -22° 49' 00.87" 0.9390065074 -4.19 17.91" 7 20h 09m 39.47s -22° 33' 46.16" 0.9319300976 -4.20 18.05" 8 20h 14m 31.37s -22° 17' 56.33" 0.9248371038 -4.20 18.19" 9 20h 19m 21.52s -22° 01' 32.07" 0.9177278879 -4.21 18.33" 10 20h 24m 09.88s -21° 44' 34.08" 0.9106028872 -4.21 18.47" 11 20h 28m 56.42s -21° 27' 03.11" 0.9034626092 -4.22 18.62" 12 20h 33m 41.11s -21° 08' 59.90" 0.8963076210 -4.23 18.77" 13 20h 38m 23.92s -20° 50' 25.22" 0.8891385296 -4.23 18.92" 14 20h 43m 04.82s -20° 31' 19.84" 0.8819559552 -4.24 19.07" 15 20h 47m 43.78s -20° 11' 44.55" 0.8747605025 -4.24 19.23" 16 20h 52m 20.78s -19° 51' 40.14" 0.8675527329 -4.25 19.39" 17 20h 56m 55.80s -19° 31' 07.38" 0.8603331462 -4.26 19.55" 18 21h 01m 28.82s -19° 10' 07.06" 0.8531021722 -4.26 19.72" 19 21h 05m 59.83s -18° 48' 39.95" 0.8458601733 -4.27 19.88" 20 21h 10m 28.81s -18° 26' 46.84" 0.8386074550 -4.28 20.06" 21 21h 14m 55.75s -18° 04' 28.49" 0.8313442798 -4.28 20.23" 22 21h 19m 20.64s -17° 41' 45.71" 0.8240708807 -4.29 20.41" 23 21h 23m 43.47s -17° 18' 39.29" 0.8167874716 -4.30 20.59" 24 21h 28m 04.23s -16° 55' 10.03" 0.8094942539 -4.30 20.78" 25 21h 32m 22.90s -16° 31' 18.74" 0.8021914213 -4.31 20.97" 26 21h 36m 39.49s -16° 07' 06.24" 0.7948791610 -4.32 21.16" 27 21h 40m 53.98s -15° 42' 33.34" 0.7875576556 -4.32 21.36" 28 21h 45m 06.36s -15° 17' 40.87" 0.7802270848 -4.33 21.56" 29 21h 49m 16.62s -14° 52' 29.68" 0.7728876281 -4.34 21.76" 30 21h 53m 24.75s -14° 27' 00.60" 0.7655394712 -4.34 21.97" 31 21h 57m 30.74s -14° 01' 14.50" 0.7581828152 -4.35 22.18" =================================================================
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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