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 = 2026 Jan 24 - Sat Local Time = 02:06:33 Standard Time Std. Time Zone Offset = 00:00:00 Applied Delta T = +00:00:00 Astronomical JD TT = 2461064.58788194 =========================================================================== Geocentric Equatorial Coordinates of Mercury Right Ascension = 20h 34m 33.15s = 20.5758748h = 308.6381220° Declination = -20° 51' 41.13" = -20.861424° True Distance = 1.405645015 AU = 210.281501 Mkm = 130.662867 Mmi Visual Magnitude = -1.4 Angular Diameter = 4.781" Horizontal Parallax = 6.256" = 0.104272' = 0.001737864° Light/Signal Time = 11m 41.42s =========================================================================== 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 = 20h 34m 32.90s = 20.5758045h = 308.6370679° Topocentric Decl = -20° 51' 44.03" = -20.862231° Local Hour Angle = -15h 21m 39.39s = -230.41411928468° (W=Negative) Local Sidereal Time = 05h 12m 53.508s = 5.214863242h = 78.222948636° Azimuth = 101.20930° (Measured clockwise from S=0°) = 281.20930° (Measured clockwise from N=0°) Direction = W Altitude = -42.76459° (Invisible - Below Local Horizon) =========================================================================== Mercury Ephemeris Table For Each Day Of Jan. 2026 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 2461039 17.6255715 -23.624523 1.356972263 -0.5 xx 2461040 17.7354248 -23.789951 1.365667000 -0.5 xx 2461041 17.8459831 -23.935771 1.373791246 -0.5 xx 2461042 17.9572072 -24.061546 1.381353044 -0.6 1 2461043 18.0690595 -24.166865 1.388359530 -0.6 2 2461044 18.1815043 -24.251336 1.394816877 -0.6 3 2461045 18.2945072 -24.314588 1.400730267 -0.6 4 2461046 18.4080348 -24.356263 1.406103868 -0.7 5 2461047 18.5220555 -24.376023 1.410940832 -0.7 6 2461048 18.6365381 -24.373545 1.415243295 -0.7 7 2461049 18.7514522 -24.348521 1.419012371 -0.8 8 2461050 18.8667679 -24.300663 1.422248142 -0.8 9 2461051 18.9824554 -24.229692 1.424949634 -0.8 10 2461052 19.0984851 -24.135348 1.427114787 -0.9 11 2461053 19.2148275 -24.017380 1.428740418 -0.9 12 2461054 19.3314529 -23.875552 1.429822177 -1.0 13 2461055 19.4483320 -23.709641 1.430354502 -1.0 14 2461056 19.5654351 -23.519437 1.430330564 -1.1 15 2461057 19.6827323 -23.304741 1.429742226 -1.2 16 2461058 19.8001937 -23.065372 1.428579980 -1.2 17 2461059 19.9177887 -22.801161 1.426832902 -1.3 18 2461060 20.0354865 -22.511955 1.424488591 -1.3 19 2461061 20.1532557 -22.197617 1.421533121 -1.4 20 2461062 20.2710638 -21.858032 1.417950981 -1.4 21 2461063 20.3888772 -21.493104 1.413725026 -1.4 22 2461064 20.5066607 -21.102769 1.408836425 -1.4 23 2461065 20.6243775 -20.686993 1.403264622 -1.4 24 2461066 20.7419880 -20.245777 1.396987305 -1.4 25 2461067 20.8594493 -19.779163 1.389980392 -1.4 26 2461068 20.9767137 -19.287243 1.382218050 -1.4 27 2461069 21.0937280 -18.770169 1.373672737 -1.3 28 2461070 21.2104321 -18.228159 1.364315300 -1.3 29 2461071 21.3267572 -17.661514 1.354115128 -1.3 30 2461072 21.4426251 -17.070631 1.343040391 -1.3 31 2461073 21.5579456 -16.456018 1.331058382 -1.2 xx 2461074 21.6726146 -15.818319 1.318135993 -1.2 xx 2461075 21.7865118 -15.158334 1.304240352 -1.2 xx JD12_TT RA_Hr Decl_Deg Dist_AU VMag Day ===========================================================================