Mars 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.
Mars 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 = 16:03:45 Standard Time Std. Time Zone Offset = 00:00:00 Applied Delta T = +00:00:00 Astronomical JD TT = 2460666.16927083 =========================================================================== Geocentric Equatorial Coordinates of Mars Right Ascension = 08h 35m 26.99s = 8.5908299h = 128.8624485° Declination = +22° 28' 51.80" = +22.481055° True Distance = 0.691849484 AU = 103.499210 Mkm = 64.311427 Mmi Visual Magnitude = -1.0 Angular Diameter = 9.713" Horizontal Parallax = 12.711" = 0.211851' = 0.003530854° Light/Signal Time = 05m 45.24s =========================================================================== Local Topocentric Coordinates of Mars For Geographic Location: Longitude = -76.833611111° = -05h 07m 20.1s (W=Negative) Latitude = +42.752194444° Elevation = 0 m Topocentric RA = 08h 35m 26.44s = 8.5906783h = 128.8601738° Topocentric Decl = +22° 28' 41.77" = +22.478269° Local Hour Angle = +08h 23m 50.57s = 125.96071551148° (W=Negative) Local Sidereal Time = 16h 59m 17.013s = 16.988059288h = 254.820889327° Azimuth = 130.95321° (Measured clockwise from S=0°) = 310.95321° (Measured clockwise from N=0°) Direction = NW Altitude = -7.98431° (Invisible - Below Local Horizon) =========================================================================== Mars 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 8.5808992 +21.211302 0.822564590 -0.4 xx 2460644 8.5887591 +21.228045 0.815926290 -0.5 xx 2460645 8.5957799 +21.248102 0.809351182 -0.5 xx 2460646 8.6019489 +21.271527 0.802842916 -0.5 1 2460647 8.6072533 +21.298372 0.796405212 -0.5 2 2460648 8.6116811 +21.328678 0.790041845 -0.5 3 2460649 8.6152206 +21.362482 0.783756626 -0.6 4 2460650 8.6178608 +21.399809 0.777553386 -0.6 5 2460651 8.6195913 +21.440676 0.771435961 -0.6 6 2460652 8.6204026 +21.485090 0.765408176 -0.6 7 2460653 8.6202863 +21.533051 0.759473836 -0.7 8 2460654 8.6192344 +21.584547 0.753636720 -0.7 9 2460655 8.6172400 +21.639562 0.747900582 -0.7 10 2460656 8.6142966 +21.698070 0.742269156 -0.7 11 2460657 8.6103980 +21.760043 0.736746179 -0.8 12 2460658 8.6055382 +21.825448 0.731335416 -0.8 13 2460659 8.5997110 +21.894244 0.726040697 -0.8 14 2460660 8.5929106 +21.966385 0.720865951 -0.8 15 2460661 8.5851315 +22.041815 0.715815235 -0.8 16 2460662 8.5763694 +22.120466 0.710892749 -0.9 17 2460663 8.5666215 +22.202256 0.706102832 -0.9 18 2460664 8.5558868 +22.287091 0.701449943 -0.9 19 2460665 8.5441665 +22.374864 0.696938643 -0.9 20 2460666 8.5314640 +22.465452 0.692573561 -1.0 21 2460667 8.5177849 +22.558722 0.688359373 -1.0 22 2460668 8.5031374 +22.654525 0.684300777 -1.0 23 2460669 8.4875320 +22.752700 0.680402471 -1.0 24 2460670 8.4709818 +22.853074 0.676669135 -1.0 25 2460671 8.4535027 +22.955461 0.673105412 -1.1 26 2460672 8.4351132 +23.059663 0.669715891 -1.1 27 2460673 8.4158346 +23.165470 0.666505083 -1.1 28 2460674 8.3956912 +23.272659 0.663477392 -1.1 29 2460675 8.3747102 +23.381001 0.660637088 -1.2 30 2460676 8.3529218 +23.490251 0.657988272 -1.2 31 2460677 8.3303594 +23.600157 0.655534837 -1.2 xx 2460678 8.3070592 +23.710461 0.653280436 -1.2 xx 2460679 8.2830607 +23.820893 0.651228450 -1.2 xx JD12_TT RA_Hr Decl_Deg Dist_AU VMag Day ===========================================================================