Grazing Occultation of 3347 A9 Magnitude 6.2 [Red = 6.1] v R3347 = 70 Aquarii (FM) Date: 2017 Oct 30 18h 29m, to 2017 Oct 30 18h 55m 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 18 0 0 63 26 54.1 18 40 54 16 175 3.45 158.4 182.16 -2.26S 19 0 0 64 8 0.7 18 42 8 16 176 3.60 158.5 182.21 -2.32S 20 0 0 64 49 2.4 18 43 17 15 178 3.77 158.5 182.28 -2.39S 21 0 0 65 30 2.7 18 44 23 14 179 3.96 158.6 182.36 -2.46S 22 0 0 66 10 54.2 18 45 26 14 180 4.17 158.7 182.43 -2.54S 23 0 0 66 51 33.4 18 46 24 13 182 4.40 158.8 182.51 -2.62S 24 0 0 67 31 57.0 18 47 19 12 183 4.66 158.8 182.60 -2.70S 25 0 0 68 12 1.8 18 48 10 11 184 4.95 158.9 182.68 -2.79S 26 0 0 68 51 44.9 18 48 58 11 185 5.28 159.0 182.77 -2.88S 27 0 0 69 31 3.4 18 49 42 10 186 5.66 159.1 182.87 -2.97S 28 0 0 70 9 54.7 18 50 22 9 188 6.09 159.2 182.96 -3.07S 29 0 0 70 48 16.3 18 51 0 9 189 6.58 159.3 183.06 -3.17S 30 0 0 71 26 5.5 18 51 33 8 190 7.16 159.4 183.16 -3.26S 31 0 0 72 3 19.7 18 52 4 7 191 7.83 159.5 183.26 -3.36S 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 1 meters [Estimated] 3347 is variable: 3347 = FM Aqr, 6.16 to 6.19, V, Type DSCTC, Period 0.087 days Librations Long -7.06 Lat +3.01 P +182.31 D +3.60 Illumination of moon 77%+ Elongation of Moon 122 Vertical Profile Scale approx. 4.87 km/arcsec at mean distance of moon Horizontal Scale Factor 1.69 deg/min At longitude 25.50: Limiting Magnitudes for various telescope apertures (in cm) CA\Tdia 5 10 15 20 25 30 35 -6.8 2.2 3.4 4.0 4.3 4.4 4.5 4.6 -4.8 2.2 3.4 4.0 4.3 4.4 4.5 4.6 -2.8 2.2 3.4 4.0 4.3 4.4 4.5 4.6 -0.8 2.2 3.4 4.0 4.3 4.4 4.5 4.6 1.2 2.2 3.4 4.0 4.3 4.4 4.5 4.6 ------------------------------------------------------------------------------ Results of Observer Scan UT Site Long. Lat. Dist. h m s Kolari 23.8 67.3 4km 18 47 7.8 Utsjoki Ailigas 27.1 69.9 17km 18 49 44.5 Karigasniemi 25.8 69.4 33km 18 48 50.7 Inari 27.0 68.9 34km 18 49 42.9 Muonio 23.7 68.0 35km 18 47 1.4 Pello 24.0 66.8 42km 18 47 17.3 Enontekiö 23.6 68.4 59km 18 46 59.3 Ivalo 27.5 68.7 66km 18 50 3.9 Vuotso 27.1 68.1 83km 18 49 46.8 Meltaus 25.4 66.9 87km 18 48 27.9 Grazing Occultation of 3347 A9 Magnitude 6.2 [Red = 6.1] v R3347 = 70 Aquarii (FM) Date: 2017 Oct 30 18h 29m, to 2017 Oct 30 18h 55m 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 10 0 0 58 6 24.9 18 29 7 20 163 2.69 158.2 181.97 -2.08S 10 15 0 58 15 58.5 18 29 32 20 164 2.71 158.2 181.97 -2.08S 10 30 0 58 25 34.5 18 29 57 20 164 2.72 158.2 181.97 -2.08S 10 45 0 58 35 13.1 18 30 21 20 164 2.74 158.2 181.97 -2.07S 11 0 0 58 44 54.1 18 30 46 20 165 2.75 158.2 181.97 -2.07S 11 15 0 58 54 37.4 18 31 10 20 165 2.77 158.2 181.97 -2.07S 11 30 0 59 4 22.9 18 31 34 20 166 2.79 158.2 181.97 -2.07S 11 45 0 59 14 10.6 18 31 58 20 166 2.80 158.2 181.97 -2.07S 12 0 0 59 24 0.3 18 32 22 20 166 2.82 158.2 181.97 -2.07S 12 15 0 59 33 52.0 18 32 45 19 167 2.84 158.2 181.97 -2.07S 12 30 0 59 43 45.6 18 33 9 19 167 2.86 158.2 181.97 -2.07S 12 45 0 59 53 41.1 18 33 32 19 168 2.88 158.2 181.97 -2.08S 13 0 0 60 3 38.4 18 33 55 19 168 2.90 158.2 181.97 -2.08S 13 15 0 60 13 37.2 18 34 18 19 168 2.92 158.2 181.98 -2.08S 13 30 0 60 23 37.7 18 34 41 19 169 2.94 158.2 181.98 -2.09S 13 45 0 60 33 39.7 18 35 3 19 169 2.96 158.2 181.99 -2.09S 14 0 0 60 43 43.1 18 35 25 19 169 2.99 158.2 181.99 -2.10S 14 15 0 60 53 47.9 18 35 48 18 170 3.01 158.3 182.00 -2.11S 14 30 0 61 3 53.9 18 36 9 18 170 3.04 158.3 182.01 -2.11S 14 45 0 61 14 1.1 18 36 31 18 170 3.06 158.3 182.01 -2.12S 15 0 0 61 24 9.4 18 36 53 18 171 3.09 158.3 182.02 -2.13S 15 15 0 61 34 18.8 18 37 14 18 171 3.11 158.3 182.03 -2.14S 15 30 0 61 44 29.3 18 37 35 18 172 3.14 158.3 182.04 -2.14S 15 45 0 61 54 40.7 18 37 56 18 172 3.17 158.3 182.05 -2.15S 16 0 0 62 4 52.9 18 38 17 17 172 3.20 158.3 182.06 -2.16S 16 15 0 62 15 7.7 18 38 37 17 173 3.22 158.3 182.07 -2.17S 16 30 0 62 25 21.4 18 38 57 17 173 3.25 158.3 182.08 -2.19S 16 45 0 62 35 35.7 18 39 17 17 173 3.29 158.3 182.09 -2.20S 17 0 0 62 45 50.5 18 39 37 17 174 3.32 158.4 182.10 -2.21S 17 15 0 62 56 5.9 18 39 57 17 174 3.35 158.4 182.12 -2.22S 17 30 0 63 6 21.6 18 40 16 16 174 3.38 158.4 182.13 -2.23S 17 45 0 63 16 37.7 18 40 35 16 175 3.42 158.4 182.14 -2.25S 18 0 0 63 26 54.1 18 40 54 16 175 3.45 158.4 182.16 -2.26S 18 15 0 63 37 10.6 18 41 13 16 175 3.49 158.4 182.17 -2.28S 18 30 0 63 47 27.2 18 41 32 16 176 3.53 158.4 182.18 -2.29S 18 45 0 63 57 43.9 18 41 50 16 176 3.56 158.4 182.20 -2.30S 19 0 0 64 8 0.6 18 42 8 16 176 3.60 158.5 182.21 -2.32S 19 15 0 64 18 17.4 18 42 26 15 177 3.64 158.5 182.23 -2.33S 19 30 0 64 28 33.9 18 42 43 15 177 3.69 158.5 182.24 -2.35S 19 45 0 64 38 46.3 18 43 0 15 177 3.73 158.5 182.27 -2.37S 20 0 0 64 49 2.3 18 43 17 15 178 3.77 158.5 182.28 -2.39S 20 15 0 64 59 18.0 18 43 34 15 178 3.82 158.6 182.30 -2.41S 20 30 0 65 9 33.3 18 43 51 15 178 3.86 158.6 182.32 -2.42S 20 45 0 65 19 48.2 18 44 7 14 179 3.91 158.6 182.34 -2.44S 21 0 0 65 30 2.6 18 44 23 14 179 3.96 158.6 182.35 -2.46S 21 15 0 65 40 16.4 18 44 39 14 179 4.01 158.6 182.37 -2.48S 21 30 0 65 50 29.6 18 44 55 14 180 4.06 158.6 182.39 -2.50S 21 45 0 66 0 42.2 18 45 11 14 180 4.11 158.7 182.41 -2.52S 22 0 0 66 10 54.1 18 45 26 14 180 4.17 158.7 182.43 -2.54S 22 15 0 66 21 5.1 18 45 41 13 181 4.22 158.7 182.45 -2.56S 22 30 0 66 31 15.4 18 45 55 13 181 4.28 158.7 182.47 -2.58S 22 45 0 66 41 24.8 18 46 10 13 181 4.34 158.7 182.49 -2.60S 23 0 0 66 51 33.2 18 46 24 13 182 4.40 158.8 182.51 -2.62S 23 15 0 67 1 40.7 18 46 38 13 182 4.46 158.8 182.53 -2.64S 23 30 0 67 11 47.2 18 46 52 12 182 4.52 158.8 182.55 -2.66S 23 45 0 67 21 52.5 18 47 6 12 182 4.59 158.8 182.58 -2.68S 24 0 0 67 31 56.8 18 47 19 12 183 4.66 158.8 182.60 -2.70S 24 15 0 67 41 59.9 18 47 32 12 183 4.73 158.9 182.62 -2.72S 24 30 0 67 52 1.7 18 47 45 12 183 4.80 158.9 182.64 -2.75S 24 45 0 68 2 2.4 18 47 58 12 184 4.87 158.9 182.66 -2.77S 25 0 0 68 12 1.6 18 48 10 11 184 4.95 158.9 182.68 -2.79S 25 15 0 68 21 59.5 18 48 22 11 184 5.03 159.0 182.71 -2.81S 25 30 0 68 31 56.0 18 48 34 11 185 5.11 159.0 182.73 -2.83S 25 45 0 68 41 51.1 18 48 46 11 185 5.19 159.0 182.75 -2.86S 26 0 0 68 51 44.6 18 48 58 11 185 5.28 159.0 182.77 -2.88S 26 15 0 69 1 36.7 18 49 9 11 185 5.37 159.0 182.80 -2.90S 26 30 0 69 11 27.1 18 49 20 10 186 5.46 159.1 182.82 -2.93S 26 45 0 69 21 16.0 18 49 31 10 186 5.56 159.1 182.84 -2.95S 27 0 0 69 31 3.2 18 49 42 10 186 5.66 159.1 182.87 -2.97S 27 15 0 69 40 48.6 18 49 52 10 187 5.76 159.1 182.89 -3.00S 27 30 0 69 50 32.4 18 50 2 10 187 5.86 159.2 182.92 -3.02S 27 45 0 70 0 14.3 18 50 12 10 187 5.97 159.2 182.94 -3.04S 28 0 0 70 9 54.5 18 50 22 9 188 6.09 159.2 182.96 -3.07S 28 15 0 70 19 32.8 18 50 32 9 188 6.20 159.2 182.99 -3.09S 28 30 0 70 29 9.2 18 50 41 9 188 6.33 159.3 183.01 -3.12S 28 45 0 70 38 43.6 18 50 50 9 188 6.45 159.3 183.04 -3.14S 29 0 0 70 48 16.0 18 50 59 9 189 6.58 159.3 183.06 -3.17S 29 15 0 70 57 46.5 18 51 8 8 189 6.72 159.3 183.09 -3.19S 29 30 0 71 7 14.8 18 51 17 8 189 6.86 159.4 183.11 -3.21S 29 45 0 71 16 41.1 18 51 25 8 189 7.00 159.4 183.13 -3.24S 30 0 0 71 26 5.2 18 51 33 8 190 7.16 159.4 183.16 -3.26S 30 15 0 71 35 27.1 18 51 41 8 190 7.32 159.4 183.18 -3.29S 30 30 0 71 44 46.8 18 51 49 8 190 7.48 159.5 183.21 -3.31S 30 45 0 71 54 4.3 18 51 57 7 191 7.65 159.5 183.23 -3.34S 31 0 0 72 3 19.5 18 52 4 7 191 7.83 159.5 183.26 -3.36S 31 15 0 72 12 32.4 18 52 11 7 191 8.02 159.5 183.28 -3.39S 31 30 0 72 21 42.9 18 52 19 7 191 8.21 159.6 183.31 -3.41S 31 45 0 72 30 51.1 18 52 25 7 192 8.42 159.6 183.33 -3.44S 32 0 0 72 39 56.8 18 52 32 7 192 8.63 159.6 183.36 -3.46S 32 15 0 72 49 0.1 18 52 39 6 192 8.86 159.6 183.38 -3.48S 32 30 0 72 58 0.9 18 52 45 6 193 9.09 159.7 183.40 -3.51S 32 45 0 73 6 59.2 18 52 51 6 193 9.34 159.7 183.43 -3.53S 33 0 0 73 15 54.9 18 52 57 6 193 9.60 159.7 183.45 -3.56S 33 15 0 73 24 48.0 18 53 3 6 193 9.87 159.7 183.48 -3.58S 33 30 0 73 33 38.5 18 53 8 6 194 10.16 159.8 183.50 -3.61S 33 45 0 73 42 26.3 18 53 14 5 194 10.46 159.8 183.53 -3.63S 34 0 0 73 51 11.4 18 53 19 5 194 10.78 159.8 183.55 -3.66S 34 15 0 73 59 53.9 18 53 24 5 194 11.11 159.8 183.58 -3.68S 34 30 0 74 8 33.5 18 53 29 5 195 11.47 159.8 183.60 -3.70S 34 45 0 74 17 10.3 18 53 34 5 195 11.85 159.9 183.62 -3.73S 35 0 0 74 25 44.2 18 53 39 5 195 12.25 159.9 183.65 -3.75S 35 15 0 74 34 15.3 18 53 43 5 195 12.68 159.9 183.67 -3.78S 35 30 0 74 42 43.5 18 53 47 4 196 13.14 159.9 183.69 -3.80S 35 45 0 74 51 8.8 18 53 52 4 196 13.62 160.0 183.72 -3.82S 36 0 0 74 59 31.0 18 53 56 4 196 14.15 160.0 183.74 -3.85S 36 15 0 75 7 50.3 18 54 0 4 196 14.70 160.0 183.77 -3.87S 36 30 0 75 16 6.6 18 54 3 4 197 15.31 160.0 183.79 -3.89S 36 45 0 75 24 19.7 18 54 7 4 197 15.95 160.1 183.81 -3.92S 37 0 0 75 32 29.7 18 54 10 3 197 16.65 160.1 183.84 -3.94S 37 15 0 75 40 36.5 18 54 14 3 198 17.41 160.1 183.86 -3.97S 37 30 0 75 48 40.1 18 54 17 3 198 18.24 160.1 183.88 -3.99S 37 45 0 75 56 40.5 18 54 20 3 198 19.14 160.2 183.91 -4.01S 38 0 0 76 4 37.5 18 54 23 3 198 20.13 160.2 183.93 -4.03S 38 15 0 76 12 31.2 18 54 26 3 199 21.21 160.2 183.95 -4.06S 38 30 0 76 20 21.4 18 54 29 3 199 22.42 160.2 183.98 -4.08S 38 45 0 76 28 8.3 18 54 31 2 199 23.75 160.2 184.00 -4.10S 39 0 0 76 35 51.6 18 54 34 2 199 25.24 160.3 184.02 -4.13S 39 15 0 76 43 31.4 18 54 36 2 200 26.92 160.3 184.04 -4.15S 39 30 0 76 51 7.6 18 54 38 2 200 28.82 160.3 184.07 -4.17S 39 45 0 76 58 40.1 18 54 40 2 200 30.99 160.3 184.09 -4.19S 40 0 0 77 6 8.9 18 54 42 2 200 33.49 160.4 184.11 -4.22S 40 0 0 77 6 8.6 18 54 42 2 200 33.48 160.4 184.11 -4.21S 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 1 meters [Estimated] 3347 is variable: 3347 = FM Aqr, 6.16 to 6.19, V, Type DSCTC, Period 0.087 days Librations Long -7.06 Lat +3.01 P +182.29 D +3.60 Illumination of moon 77%+ Elongation of Moon 122 Vertical Profile Scale approx. 4.87 km/arcsec at mean distance of moon Horizontal Scale Factor 1.69 deg/min At longitude 25.25: Limiting Magnitudes for various telescope apertures (in cm) CA\Tdia 5 10 15 20 25 30 35 -6.8 2.2 3.4 4.0 4.3 4.4 4.5 4.6 -4.8 2.2 3.4 4.0 4.3 4.4 4.5 4.6 -2.8 2.2 3.4 4.0 4.3 4.4 4.5 4.6 -0.8 2.2 3.4 4.0 4.3 4.4 4.5 4.6 1.2 2.2 3.4 4.0 4.3 4.4 4.5 4.6 ------------------------------------------------------------------------------ Results of Observer Scan UT Site Long. Lat. Dist. h m s Enontekiö 23.6 68.4 59km 18 46 59.3 Inari 27.0 68.9 34km 18 49 42.9 Ivalo 27.5 68.7 66km 18 50 3.9 Karigasniemi 25.8 69.4 33km 18 48 50.6 Kemijärvi 27.4 66.7 179km 18 49 59.9 Kilpisjärvi 20.8 69.0 190km 18 44 9.9 Kokkola 23.1 63.8 190km 18 46 31.6 Kolari 23.8 67.3 4km 18 47 7.8 Meltaus 25.4 66.9 87km 18 48 27.8 Muonio 23.7 68.0 35km 18 47 1.4 Oulu Puolivälikangas 25.5 65.0 209km 18 48 33.7 Pello 24.0 66.8 42km 18 47 17.3 Raahe 24.5 64.7 190km 18 47 44.0 Ranua 26.5 65.9 192km 18 49 20.5 Rovaniemi 25.7 66.5 126km 18 48 45.2 Sodankylä 26.6 67.4 104km 18 49 24.3 Tervola 24.8 66.1 115km 18 48 0.4 Tornio 24.1 65.8 103km 18 47 26.6 Utsjoki Ailigas 27.1 69.9 17km 18 49 44.5 Vaasa Sundom 21.6 63.0 176km 18 45 0.0 Vuotso 27.1 68.1 83km 18 49 46.8