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 Jul 27 - Sat Local Time = 08:42:01 Standard Time Std. Time Zone Offset = 00:00:00 Applied Delta T = +00:00:00 Astronomical JD TT = 2460518.86251157 =========================================================================== Geocentric Equatorial Coordinates of Mars Right Ascension = 04h 10m 30.85s = 4.1752360h = 62.6285400° Declination = +20° 23' 43.79" = +20.395498° True Distance = 1.620567871 AU = 242.433503 Mkm = 150.641195 Mmi Visual Magnitude = +0.9 Angular Diameter = 4.147" Horizontal Parallax = 5.427" = 0.090443' = 0.001507385° Light/Signal Time = 13m 28.67s =========================================================================== 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 = 04h 10m 31.10s = 4.1753065h = 62.6295979° Topocentric Decl = +20° 23' 40.98" = +20.394717° Local Hour Angle = +19h 46m 15.62s = 296.56506613817° (W=Negative) Local Sidereal Time = 23h 56m 46.719s = 23.946310933h = 359.194663999° Azimuth = 271.95791° (Measured clockwise from S=0°) = 91.95791° (Measured clockwise from N=0°) Direction = E Altitude = +32.98124° (Above Local Horizon - No refractions applied) =========================================================================== Mars Ephemeris Table For Each Day Of Jul. 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 2460490 2.7998231 +15.157296 1.749376793 +1.0 xx 2460491 2.8473327 +15.378499 1.745196662 +1.0 xx 2460492 2.8948666 +15.597078 1.740998250 +1.0 xx 2460493 2.9424237 +15.813003 1.736781075 +1.0 1 2460494 2.9900027 +16.026244 1.732544745 +1.0 2 2460495 3.0376017 +16.236771 1.728288957 +1.0 3 2460496 3.0852185 +16.444553 1.724013487 +1.0 4 2460497 3.1328511 +16.649559 1.719718176 +1.0 5 2460498 3.1804974 +16.851761 1.715402919 +1.0 6 2460499 3.2281554 +17.051130 1.711067641 +1.0 7 2460500 3.2758236 +17.247639 1.706712279 +1.0 8 2460501 3.3235005 +17.441265 1.702336773 +1.0 9 2460502 3.3711849 +17.631983 1.697941051 +1.0 10 2460503 3.4188757 +17.819776 1.693525022 +1.0 11 2460504 3.4665720 +18.004623 1.689088575 +1.0 12 2460505 3.5142726 +18.186508 1.684631577 +1.0 13 2460506 3.5619767 +18.365416 1.680153868 +1.0 14 2460507 3.6096830 +18.541332 1.675655261 +1.0 15 2460508 3.6573906 +18.714244 1.671135541 +0.9 16 2460509 3.7050980 +18.884140 1.666594452 +0.9 17 2460510 3.7528041 +19.051009 1.662031689 +0.9 18 2460511 3.8005070 +19.214838 1.657446889 +0.9 19 2460512 3.8482050 +19.375617 1.652839616 +0.9 20 2460513 3.8958960 +19.533331 1.648209353 +0.9 21 2460514 3.9435780 +19.687965 1.643555507 +0.9 22 2460515 3.9912488 +19.839504 1.638877419 +0.9 23 2460516 4.0389064 +19.987932 1.634174393 +0.9 24 2460517 4.0865490 +20.133235 1.629445721 +0.9 25 2460518 4.1341743 +20.275403 1.624690727 +0.9 26 2460519 4.1817800 +20.414425 1.619908792 +0.9 27 2460520 4.2293632 +20.550295 1.615099371 +0.9 28 2460521 4.2769204 +20.683007 1.610262013 +0.9 29 2460522 4.3244479 +20.812555 1.605396353 +0.9 30 2460523 4.3719416 +20.938932 1.600502114 +0.9 31 2460524 4.4193972 +21.062135 1.595579099 +0.9 xx 2460525 4.4668106 +21.182158 1.590627179 +0.9 xx 2460526 4.5141777 +21.298997 1.585646280 +0.9 xx JD12_TT RA_Hr Decl_Deg Dist_AU VMag Day ===========================================================================