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 = 2024 Dec 21 - Sat Local Time = 15:48:56 Standard Time Std. Time Zone Offset = 00:00:00 Applied Delta T = +00:00:00 Astronomical JD TT = 2460666.15898148 =========================================================================== Geocentric Equatorial Coordinates of Mercury Right Ascension = 16h 29m 50.21s = 16.4972813h = 247.4592195° Declination = -19° 19' 05.44" = -19.318179° True Distance = 0.940171884 AU = 140.647712 Mkm = 87.394436 Mmi Visual Magnitude = -0.3 Angular Diameter = 7.148" Horizontal Parallax = 9.354" = 0.155896' = 0.002598269° Light/Signal Time = 07m 49.15s =========================================================================== 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 = 16h 29m 50.18s = 16.4972727h = 247.4590907° Topocentric Decl = -19° 19' 13.68" = -19.320466° Local Hour Angle = +00h 14m 35.40s = 3.6474910658197° (W=Negative) Local Sidereal Time = 16h 44m 25.580s = 16.740438783h = 251.106581749° Azimuth = 3.89286° (Measured clockwise from S=0°) = 183.89286° (Measured clockwise from N=0°) Direction = S Altitude = +27.83635° (Above Local Horizon - No refractions applied) =========================================================================== Mercury Ephemeris Table For Each Day Of Dec. 2024 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 2460643 17.4284491 -24.243735 0.756792648 +0.9 xx 2460644 17.3927589 -23.935396 0.738901148 +1.3 xx 2460645 17.3440310 -23.591261 0.722737459 +1.8 xx 2460646 17.2827840 -23.212359 0.708630113 +2.4 1 2460647 17.2101175 -22.801284 0.696900424 +3.1 2 2460648 17.1277572 -22.362685 0.687843838 +3.9 3 2460649 17.0380337 -21.903618 0.681709383 +4.8 4 2460650 16.9437806 -21.433603 0.678679740 +0.0 5 2460651 16.8481537 -20.964287 0.678855011 +0.0 6 2460652 16.7543960 -20.508665 0.682243095 +4.9 7 2460653 16.6655871 -20.079990 0.688758538 +4.0 8 2460654 16.5844229 -19.690567 0.698230123 +3.1 9 2460655 16.5130596 -19.350690 0.710415683 +2.4 10 2460656 16.4530399 -19.067916 0.725021464 +1.8 11 2460657 16.4052962 -18.846758 0.741722907 +1.3 12 2460658 16.3702134 -18.688781 0.760184129 +0.9 13 2460659 16.3477261 -18.592974 0.780074279 +0.6 14 2460660 16.3374289 -18.556291 0.801079856 +0.4 15 2460661 16.3386811 -18.574228 0.822912971 +0.2 16 2460662 16.3506986 -18.641361 0.845315991 +0.0 17 2460663 16.3726255 -18.751795 0.868063311 -0.1 18 2460664 16.4035888 -18.899516 0.890961022 -0.2 19 2460665 16.4427355 -19.078638 0.913845169 -0.3 20 2460666 16.4892566 -19.283571 0.936579179 -0.3 21 2460667 16.5424015 -19.509115 0.959050889 -0.4 22 2460668 16.6014840 -19.750511 0.981169466 -0.4 23 2460669 16.6658843 -20.003454 1.002862434 -0.4 24 2460670 16.7350468 -20.264081 1.024072906 -0.4 25 2460671 16.8084770 -20.528947 1.044757094 -0.4 26 2460672 16.8857358 -20.794995 1.064882119 -0.4 27 2460673 16.9664351 -21.059520 1.084424103 -0.4 28 2460674 17.0502315 -21.320127 1.103366551 -0.4 29 2460675 17.1368221 -21.574704 1.121698965 -0.4 30 2460676 17.2259391 -21.821382 1.139415686 -0.4 31 2460677 17.3173456 -22.058508 1.156514927 -0.4 xx 2460678 17.4108324 -22.284620 1.172997954 -0.4 xx 2460679 17.5062137 -22.498417 1.188868415 -0.3 xx JD12_TT RA_Hr Decl_Deg Dist_AU VMag Day ===========================================================================