Input Parameters ---------------- Observation time: 2021-10-07 07:25 Ephemeris: NEP081 + NEP095 + DE440 Field of view: 10 (seconds of arc) Diagram center: Neptune Viewpoint: Earth's center Moon selection: All inner moons (N1-N8,N14) Ring selection: LeVerrier, Adams Arc model: #2 (820.1118 deg/day) Standard stars: No Additional star: No Other bodies: None Title: Moon labels: Small (6 points) Moon enlargement: 0 (points) Blank disks: No Arc weight: 4 (points) Prime meridians: Yes Field of View Description (J2000) --------------------------------- Body RA Dec RA (deg) Dec (deg) dRA (") dDec (") 899 Neptune 23h 28m 17.7510s -4d 41m 40.978s 352.073962 -4.694716 0.000 0.000 801 Triton 23h 28m 17.0094s -4d 41m 52.414s 352.070872 -4.697893 -11.087 -11.436 802 Nereid 23h 28m 42.2572s -4d 38m 35.593s 352.176072 -4.643220 366.360 185.385 803 Naiad 23h 28m 17.8057s -4d 41m 41.639s 352.074190 -4.694900 0.818 -0.661 804 Thalassa 23h 28m 17.6286s -4d 41m 42.501s 352.073452 -4.695139 -1.830 -1.523 805 Despina 23h 28m 17.8727s -4d 41m 40.367s 352.074470 -4.694546 1.820 0.611 806 Galatea 23h 28m 17.8035s -4d 41m 41.811s 352.074181 -4.694948 0.785 -0.833 807 Larissa 23h 28m 17.5622s -4d 41m 42.983s 352.073176 -4.695273 -2.822 -2.005 808 Proteus 23h 28m 17.9990s -4d 41m 40.206s 352.074996 -4.694502 3.708 0.772 814 Hippocamp 23h 28m 17.7896s -4d 41m 42.997s 352.074123 -4.695277 0.577 -2.018 Sub-Observer Sub-Solar Body Lon(degW) Lat(deg) Lon(degW) Lat(deg) Phase(deg) Distance(10^6 km) 899 Neptune 119.256 -22.782 118.466 -22.610 0.75134 4338.354329 801 Triton 243.335 -35.865 242.578 -35.437 0.75148 4338.237612 802 Nereid 100.118 3.726 99.371 3.746 0.74807 4336.800925 803 Naiad 199.350 -26.858 198.530 -26.720 0.75133 4338.397183 804 Thalassa 236.105 -22.976 235.314 -22.804 0.75136 4338.355604 805 Despina 59.009 -22.769 58.222 -22.594 0.75131 4338.387909 806 Galatea 343.647 -22.825 342.861 -22.651 0.75132 4338.411414 807 Larissa 252.931 -22.983 252.139 -22.813 0.75137 4338.343394 808 Proteus 34.218 -23.003 33.431 -22.822 0.75129 4338.440907 814 Hippocamp 287.004 -22.973 286.217 -22.798 0.75132 4338.449959 Ring sub-solar latitude (deg): -22.61024 (-22.61915 to -22.60134) Ring plane opening angle (deg): -22.78248 (lit) Ring center phase angle (deg): 0.75134 Sub-solar longitude (deg): 149.96998 from ring plane ascending node Sub-observer longitude (deg): 149.17958 Sun-planet distance (AU): 29.92193 Observer-planet distance (AU): 29.00011 Sun-planet distance (km): 4476.256293 x 10^6 Observer-planet distance (km): 4338.354329 x 10^6 Light travel time (sec): 14471.192364 Courage longitude (deg): 63.81977 to 64.81977 from ring plane ascending node Liberte longitude (deg): 55.01978 to 59.11976 Egalite A longitude (deg): 44.21976 to 45.21976 Egalite B longitude (deg): 40.41978 to 43.41978 Fraternite longitude (deg): 26.41978 to 36.01978
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