Mercury Ephemeris Calculator
Based on the NASA/JPL DE405 Ephemeris Model
PHP Program By Jay Tanner
Date: (1600 to 2200) Y m d
Local Time (00h to 24h) H:M:S
Local Time Zone Offset ±H:M
Undefined1
Std. Time = UT
Apply ΔT
+00:00:00
Daylight / Summer Time
Undefined3
Longitude ±Deg.d M S
(Neg=W)
Latitude ±Deg.d M S
(Neg=S)
Sea Level Elevation
(± meters)
This program uses a cookie to store and remember the interface settings between calls.
Mercury Ephemeris Statistics Referred to True Ecliptic and Equinox of Date Based on the NASA/JPL DE405 Ephemeris Model Local Date = 2025 Feb 05 - Wed Local Time = 10:45:26 Standard Time Std. Time Zone Offset = 00:00:00 Applied Delta T = +00:00:00 Astronomical JD TT = 2460711.94821759 =========================================================================== Geocentric Equatorial Coordinates of Mercury Right Ascension = 21h 08m 01.59s = 21.1337764h = 317.0066460° Declination = -18° 38' 49.07" = -18.646963° True Distance = 1.407672369 AU = 210.584789 Mkm = 130.851321 Mmi Visual Magnitude = -1.3 Angular Diameter = 4.774" Horizontal Parallax = 6.247" = 0.104122' = 0.001735361° Light/Signal Time = 11m 42.44s =========================================================================== Local Topocentric Coordinates of Mercury For Geographic Location: Longitude = -76.833611111° = -05h 07m 20.1s (W=Negative) Latitude = +42.752194444° Elevation = 0 m Topocentric RA = 21h 08m 01.92s = 21.1338656h = 317.0079839° Topocentric Decl = -18° 38' 52.89" = -18.648026° Local Hour Angle = -06h 26m 34.54s = -96.643924438628° (W=Negative) Local Sidereal Time = 14h 41m 27.374s = 14.690937297h = 220.364059461° Azimuth = 279.67078° (Measured clockwise from S=0°) = 99.67078° (Measured clockwise from N=0°) Direction = E Altitude = -17.31081° (Invisible - Below Local Horizon) =========================================================================== Mercury Ephemeris Table For Each Day Of Feb. 2025 at 12:00 TT There are three extra (xx) padding days at each end of the table. JD12_TT RA_Hr Decl_Deg Dist_AU VMag Day 2460705 20.3314106 -21.495763 1.408822863 -0.8 xx 2460706 20.4464720 -21.157834 1.410328035 -0.9 xx 2460707 20.5617033 -20.795807 1.411292836 -1.0 xx 2460708 20.6770853 -20.409583 1.411705911 -1.0 1 2460709 20.7926000 -19.999078 1.411554327 -1.1 2 2460710 20.9082307 -19.564227 1.410823476 -1.2 3 2460711 21.0239611 -19.104981 1.409496962 -1.2 4 2460712 21.1397753 -18.621318 1.407556500 -1.3 5 2460713 21.2556566 -18.113236 1.404981803 -1.4 6 2460714 21.3715880 -17.580765 1.401750499 -1.5 7 2460715 21.4875505 -17.023965 1.397838043 -1.5 8 2460716 21.6035236 -16.442933 1.393217673 -1.6 9 2460717 21.7194833 -15.837816 1.387860378 -1.6 10 2460718 21.8354022 -15.208820 1.381734917 -1.6 11 2460719 21.9512485 -14.556220 1.374807887 -1.6 12 2460720 22.0669840 -13.880368 1.367043863 -1.6 13 2460721 22.1825625 -13.181713 1.358405619 -1.5 14 2460722 22.2979281 -12.460823 1.348854467 -1.5 15 2460723 22.4130128 -11.718399 1.338350721 -1.5 16 2460724 22.5277343 -10.955307 1.326854321 -1.4 17 2460725 22.6419930 -10.172598 1.314325651 -1.4 18 2460726 22.7556693 -09.371542 1.300726574 -1.4 19 2460727 22.8686202 -08.553653 1.286021706 -1.3 20 2460728 22.9806761 -07.720728 1.270179962 -1.3 21 2460729 23.0916375 -06.874875 1.253176364 -1.3 22 2460730 23.2012717 -06.018548 1.234994103 -1.2 23 2460731 23.3093099 -05.154570 1.215626811 -1.2 24 2460732 23.4154450 -04.286157 1.195080963 -1.2 25 2460733 23.5193303 -03.416932 1.173378289 -1.1 26 2460734 23.6205794 -02.550916 1.150558034 -1.1 27 2460735 23.7187683 -01.692523 1.126678873 -1.1 28 2460736 23.8134381 -00.846520 1.101820266 -1.0 xx 2460737 23.9041003 -00.017982 1.076083056 -1.0 xx 2460738 23.9902440 +00.787772 1.049589140 -0.9 xx JD12_TT RA_Hr Decl_Deg Dist_AU VMag Day ===========================================================================