Grazing Occultation of 1486dK4 Magnitude 4.4 [Red = 3.6] R1486 = 31 Leonis = A Leonis Date: 2016 Oct 25 3h 29m, to 2016 Oct 25 3h 40m Nominal site altitude 100m E. Longit. Latitude U.T. Sun Moon TanZ PA AA CA o ' " o ' " h m s Alt Alt Az o o o 15 0 0 66 7 9.6 3 28 40 24 123 2.23 16.0 353.89 3.67N 15 30 0 66 6 19.5 3 28 54 24 123 2.21 16.1 353.93 3.63N 16 0 0 66 5 25.5 3 29 8 25 124 2.19 16.1 353.97 3.59N 16 30 0 66 4 27.6 3 29 23 25 124 2.17 16.1 354.01 3.55N 17 0 0 66 3 25.9 3 29 38 25 125 2.15 16.2 354.05 3.51N 17 30 0 66 2 20.2 3 29 53 25 126 2.13 16.2 354.09 3.47N 18 0 0 66 1 10.6 3 30 8 25 126 2.11 16.2 354.12 3.43N 18 30 0 65 59 57.0 3 30 23 26 127 2.10 16.3 354.16 3.39N 19 0 0 65 58 39.4 3 30 38 26 127 2.08 16.3 354.20 3.35N 19 30 0 65 57 17.9 3 30 54 26 128 2.06 16.4 354.25 3.31N 20 0 0 65 55 52.3 3 31 9 26 128 2.04 16.4 354.29 3.27N 20 30 0 65 54 22.7 3 31 25 26 129 2.02 16.5 354.33 3.23N 21 0 0 65 52 49.0 3 31 41 26 130 2.01 16.5 354.37 3.19N 21 30 0 65 51 11.2 3 31 57 27 130 1.99 16.5 354.41 3.15N 22 0 0 65 49 29.3 3 32 13 27 131 1.97 16.6 354.45 3.11N 22 30 0 65 47 43.3 3 32 30 27 131 1.96 16.6 354.49 3.07N 23 0 0 65 45 53.0 3 32 46 27 132 1.94 16.7 354.53 3.03N 23 30 0 65 43 58.6 3 33 3 27 133 1.92 16.7 354.57 2.98N 24 0 0 65 42 0.0 3 33 20 28 133 1.91 16.7 354.62 2.94N 24 30 0 65 39 57.0 3 33 37 28 134 1.89 16.8 354.66 2.90N 25 0 0 65 37 49.8 3 33 55 28 134 1.88 16.8 354.70 2.86N 25 30 0 65 35 38.3 3 34 12 28 135 1.86 16.9 354.74 2.81N 26 0 0 65 33 22.5 3 34 30 28 136 1.85 16.9 354.79 2.77N 26 30 0 65 31 2.2 3 34 47 29 136 1.83 17.0 354.83 2.73N 27 0 0 65 28 37.6 3 35 5 29 137 1.82 17.0 354.87 2.69N 27 30 0 65 26 8.5 3 35 24 29 137 1.80 17.0 354.92 2.64N 28 0 0 65 23 35.0 3 35 42 29 138 1.79 17.1 354.96 2.60N 28 30 0 65 20 57.0 3 36 1 29 139 1.77 17.1 355.00 2.55N 29 0 0 65 18 14.4 3 36 19 30 139 1.76 17.2 355.05 2.51N 29 30 0 65 15 27.2 3 36 38 30 140 1.75 17.2 355.09 2.46N 30 0 0 65 12 35.4 3 36 57 -12 30 140 1.73 17.3 355.14 2.42N 30 30 0 65 9 39.0 3 37 17 -12 30 141 1.72 17.3 355.18 2.38N 31 0 0 65 6 38.0 3 37 36 -11 30 142 1.71 17.4 355.23 2.33N 31 30 0 65 3 32.2 3 37 56 -11 31 142 1.69 17.4 355.27 2.28N 32 0 0 65 0 21.6 3 38 16 -11 31 143 1.68 17.4 355.32 2.24N 32 30 0 64 57 6.2 3 38 36 -11 31 144 1.67 17.5 355.37 2.19N 33 0 0 64 53 46.0 3 38 56 -10 31 144 1.65 17.5 355.41 2.15N 33 30 0 64 50 20.9 3 39 17 -10 31 145 1.64 17.6 355.46 2.10N 34 0 0 64 46 50.9 3 39 38 -10 32 145 1.63 17.6 355.50 2.05N 34 30 0 64 43 15.9 3 39 59 -10 32 146 1.62 17.7 355.55 2.01N 35 0 0 64 39 35.9 3 40 20 -9 32 147 1.60 17.7 355.60 1.96N Path coordinates are referred to WGS84 (as used by GPS), with the nominal site altitude being referenced to Mean Sea Level. The path is adjusted for the effects of refraction at low moon altitudes. Projected diameter of star 9 meters [CHARM/CADARS, 18 measures] 1486 is double: AB 4.4 13.6 8.0" 40.9 (GAN 5) Graze path of B 19.76 km south, and 7.4 secs later compared to A C A S S I N I R E G I O N G R A Z E Librations Long +7.60 Lat +1.92 P +354.96 D -2.35 Illumination of moon 26%- Elongation of Moon 62 Vertical Profile Scale approx. 2.76 km/arcsec at mean distance of moon Horizontal Scale Factor 1.68 deg/min At longitude 25.00: Limiting Magnitudes for various telescope apertures (in cm) CA\Tdia 5 10 15 20 25 30 35 -1.1 3.2 4.6 5.3 5.8 6.0 6.2 6.3 0.9 5.0 6.4 7.2 7.7 8.0 8.3 8.4 2.9 5.0 6.5 7.2 7.7 8.0 8.3 8.5 4.9 5.0 6.5 7.2 7.7 8.1 8.3 8.5 6.9 5.8 7.3 8.1 8.6 9.0 9.2 9.4 ------------------------------------------------------------------------------ Double star catalogue details WDS entries RA Dec Name Y1 Y2 N PA PA Sep Sep M1 M2 10079+1000GAN 5 1876 2008 8 42 41 7.5 8.0 4.37 13.6 K5III -081-068 +10 2112 N 100754.32+095951.6 ------------------------------------------------ Interferometric catalogue entries 100754.32+095951.6 ADS 7649 GAN 5 BD+10 2112 HIP 49637 10079+10 Date PA Sep M1 M2 N 1991.25 . . < 0.1 . 4.51 . . . 511 222 0.3 1 HIP1997e H ------------------------------------------------------------------------------ Results of Observer Scan UT Site Long. Lat. Dist. h m s Ähtäri 24.1 62.6 344km 3 33 24 Enontekiö 23.6 68.4 290km 3 33 8 Ivalo 27.5 68.7 349km 3 35 25 Joensuu Jakokoski 30.0 62.7 269km 3 36 57 Jyväskylä Rihlaperä 25.7 62.2 366km 3 34 19 Kajaani Lehtikangas 27.7 64.2 131km 3 35 33 Kemijärvi 27.4 66.7 138km 3 35 22 Kilpisjärvi 20.8 69.0 346km 3 31 34 Kokkola 23.1 63.8 212km 3 32 51 Kuhmo 29.5 64.1 123km 3 36 39 Kuopio Huuhanmäki 27.6 62.9 277km 3 35 29 Kuusamo 29.2 66.0 73km 3 36 27 Meltaus 25.4 66.9 143km 3 34 7 Muonio 23.7 68.0 244km 3 33 9 Nilsiä 28.1 63.2 237km 3 35 45 Nurmes 29.1 63.5 190km 3 36 25 Oulu Puolivälikangas 25.5 65.0 61km 3 34 12 Pello 24.0 66.8 117km 3 33 19 Posio 28.2 66.1 79km 3 35 48 Pudasjärvi 27.0 65.4 12km 3 35 5 Puolanka 27.7 64.9 60km 3 35 30 Raahe 24.5 64.7 107km 3 33 37 Ranua 26.5 65.9 45km 3 34 48 Rautalampi 26.7 62.6 320km 3 34 55 Rovaniemi 25.7 66.5 100km 3 34 20 Salla 28.7 66.8 162km 3 36 7 Savonlinna 28.9 61.9 375km 3 36 15 Sodankylä 26.6 67.4 207km 3 34 51 Tervola 24.8 66.1 48km 3 33 48 Tornio 24.1 65.8 17km 3 33 25 Tulppio 29.2 67.8 267km 3 36 27 Vaasa Sundom 21.6 63.0 310km 3 32 0 Varkaus 27.9 62.3 337km 3 35 38