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 : April 1 to 30 ================================================================= Day R.A. Declination Dist AU V Mag A Diam === ============== =============== ============ ===== ======= 1 23h 43m 25.02s -3° 23' 33.38" 1.6228377025 -3.89 10.36" 2 23h 47m 58.35s -2° 54' 32.24" 1.6260755948 -3.89 10.34" 3 23h 52m 31.38s -2° 25' 25.63" 1.6292725051 -3.89 10.32" 4 23h 57m 04.15s -1° 56' 14.27" 1.6324278619 -3.89 10.30" 5 00h 01m 36.70s -1° 26' 58.88" 1.6355410941 -3.89 10.28" 6 00h 06m 09.07s -0° 57' 40.19" 1.6386116552 -3.89 10.26" 7 00h 10m 41.29s -0° 28' 18.90" 1.6416390526 -3.89 10.25" 8 00h 15m 13.40s +0° 01' 04.25" 1.6446228757 -3.89 10.23" 9 00h 19m 45.45s +0° 30' 28.57" 1.6475628150 -3.89 10.21" 10 00h 24m 17.47s +0° 59' 53.34" 1.6504586661 -3.89 10.19" 11 00h 28m 49.50s +1° 29' 17.84" 1.6533103169 -3.89 10.17" 12 00h 33m 21.58s +1° 58' 41.35" 1.6561177215 -3.89 10.16" 13 00h 37m 53.74s +2° 28' 03.16" 1.6588808690 -3.89 10.14" 14 00h 42m 26.03s +2° 57' 22.54" 1.6615997542 -3.89 10.12" 15 00h 46m 58.48s +3° 26' 38.79" 1.6642743575 -3.89 10.11" 16 00h 51m 31.14s +3° 55' 51.20" 1.6669046327 -3.89 10.09" 17 00h 56m 04.04s +4° 24' 59.06" 1.6694905036 -3.89 10.08" 18 01h 00m 37.21s +4° 54' 01.67" 1.6720318639 -3.89 10.06" 19 01h 05m 10.71s +5° 22' 58.34" 1.6745285786 -3.89 10.04" 20 01h 09m 44.58s +5° 51' 48.37" 1.6769804845 -3.89 10.03" 21 01h 14m 18.84s +6° 20' 31.06" 1.6793873899 -3.89 10.02" 22 01h 18m 53.55s +6° 49' 05.72" 1.6817490733 -3.89 10.00" 23 01h 23m 28.74s +7° 17' 31.67" 1.6840652814 -3.89 09.99" 24 01h 28m 04.46s +7° 45' 48.19" 1.6863357262 -3.89 09.97" 25 01h 32m 40.74s +8° 13' 54.61" 1.6885600812 -3.89 09.96" 26 01h 37m 17.63s +8° 41' 50.21" 1.6907379767 -3.89 09.95" 27 01h 41m 55.15s +9° 09' 34.29" 1.6928689976 -3.89 09.94" 28 01h 46m 33.34s +9° 37' 06.15" 1.6949526818 -3.89 09.92" 29 01h 51m 12.25s +10° 04' 25.06" 1.6969885217 -3.89 09.91" 30 01h 55m 51.89s +10° 31' 30.31" 1.6989759676 -3.89 09.90" =================================================================
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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