Asteroid Iris Ephemeris Calculator
Based on the U.S. Naval Observatory Asteroid Ephemeris, 1998
Date: (1800 to 2099) 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.
Asteroid Iris Ephemeris Statistics Referred to True Ecliptic and Equinox of the Date Based On the U.S.N.O. Asteroid Ephemeris, 1998 Local Date = 2017 Jun 22 - Thu Local Time = 23:34:12 Daylight/Summer Time Std. Time Zone Offset = -05:00:00 Applied Delta T = +00:00:00 Astronomical JD TT = 2457927.64874999 ================================================================================ Geocentric Equatorial Coordinates of Asteroid Iris Right Ascension = 00h 41m 46.34s = 0.6962062h = 10.4430930° Declination = +10° 37' 29.29" = +10.624802° True Distance = 1.976854450 AU = 295.733216 Mkm = 183.760101 Mmi Visual Magnitude = +9.8 Horizontal Parallax = 4.449" = 0.074143' = 0.001235710° Light/Signal Time = 16m 26.460s ================================================================================ Local Topocentric Coordinates of Asteroid Iris For Geographic Location: Longitude = -76.833611111° = -05h 07m 20.1s (W=Negative) Latitude = +42.752194444° Elevation = 0 m Topocentric RA = 00h 41m 46.53s = 0.6962583h = 10.4438752° Topocentric Decl = +10° 37' 26.01" = +10.623892° Local Hour Angle = +15h 51m 05.19s = 237.771638778° (W=Negative) Local Sidereal Time = 16h 32m 51.723s = 16.547700930h = 248.215513952° Azimuth = 59.42652° (Measured clockwise from N=0°) = 239.42652° (Measured clockwise from S=0°) Direction = ENE Altitude = -15.05431° (Invisible - Below Local Horizon) ================================================================================ Asteroid Iris ephemeris table for each day of Jun. 2014 at 12:00 TT. Computed according to USNO AE98 ephemeris model - No Delta T applied. There are three extra (xx) days at each end of the table. JD12_TT RA_Hr Decl_Deg Dist_AU VMag Day 2457903 23.9979318 +05.335917 2.278109284 +10.1 xx 2457904 0.0267940 +05.553876 2.265970297 +10.1 xx 2457905 0.0556145 +05.771675 2.253818757 +10.1 xx 2457906 0.0843933 +05.989297 2.241655678 +10.1 1 2457907 0.1131303 +06.206727 2.229481985 +10.1 2 2457908 0.1418258 +06.423950 2.217298529 +10.0 3 2457909 0.1704797 +06.640952 2.205106096 +10.0 4 2457910 0.1990918 +06.857716 2.192905412 +10.0 5 2457911 0.2276620 +07.074228 2.180697156 +10.0 6 2457912 0.2561897 +07.290471 2.168481965 +10.0 7 2457913 0.2846744 +07.506428 2.156260439 +10.0 8 2457914 0.3131152 +07.722082 2.144033149 +10.0 9 2457915 0.3415111 +07.937414 2.131800639 +10.0 10 2457916 0.3698611 +08.152405 2.119563438 +10.0 11 2457917 0.3981638 +08.367036 2.107322059 +9.9 12 2457918 0.4264178 +08.581285 2.095077014 +9.9 13 2457919 0.4546216 +08.795134 2.082828816 +9.9 14 2457920 0.4827737 +09.008560 2.070577990 +9.9 15 2457921 0.5108724 +09.221544 2.058325082 +9.9 16 2457922 0.5389161 +09.434064 2.046070669 +9.9 17 2457923 0.5669029 +09.646100 2.033815375 +9.9 18 2457924 0.5948313 +09.857629 2.021559888 +9.9 19 2457925 0.6226992 +10.068632 2.009304979 +9.8 20 2457926 0.6505047 +10.279084 1.997051520 +9.8 21 2457927 0.6782453 +10.488963 1.984800492 +9.8 22 2457928 0.7059186 +10.698241 1.972552987 +9.8 23 2457929 0.7335217 +10.906891 1.960310181 +9.8 24 2457930 0.7610519 +11.114885 1.948073295 +9.8 25 2457931 0.7885069 +11.322196 1.935843548 +9.8 26 2457932 0.8158847 +11.528800 1.923622114 +9.8 27 2457933 0.8431837 +11.734676 1.911410094 +9.7 28 2457934 0.8704026 +11.939804 1.899208503 +9.7 29 2457935 0.8975399 +12.144166 1.887018270 +9.7 30 2457936 0.9245943 +12.347744 1.874840252 +9.7 xx 2457937 0.9515641 +12.550521 1.862675239 +9.7 xx 2457938 0.9784476 +12.752478 1.850523970 +9.7 xx JD12_TT RA_Hr Decl_Deg Dist_AU VMag Day ================================================================================
Programmed in PHP by Jay Tanner - 2017 - v4.0
Revised 2015 Jun 12