Grazing Occultation of 1678 F5 Magnitude 5.8 [Red = 5.5] R1678 = 89 Leonis Date: 2016 Nov 23 5h 18m, to 2016 Nov 23 5h 46m 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 62 18 56.4 5 17 51 29 161 1.77 202.9 178.11 -0.62S 15 30 0 62 10 2.9 5 18 22 30 161 1.75 202.9 178.16 -0.57S 16 0 0 62 1 1.4 5 18 53 30 162 1.73 203.0 178.22 -0.51S 16 30 0 61 51 52.0 5 19 25 30 163 1.72 203.0 178.27 -0.46S 17 0 0 61 42 34.5 5 19 57 30 163 1.70 203.1 178.33 -0.40S 17 30 0 61 33 8.7 5 20 30 31 164 1.69 203.2 178.38 -0.35S 18 0 0 61 23 34.8 5 21 3 31 165 1.67 203.2 178.44 -0.29S 18 30 0 61 13 52.4 5 21 37 31 166 1.65 203.3 178.50 -0.23S 19 0 0 61 4 1.6 5 22 12 -12 31 166 1.64 203.3 178.55 -0.18S 19 30 0 60 54 2.2 5 22 47 -11 32 167 1.62 203.4 178.61 -0.12S 20 0 0 60 43 54.3 5 23 22 -11 32 168 1.61 203.4 178.67 -0.06S 20 30 0 60 33 37.7 5 23 58 -11 32 169 1.59 203.5 178.72 0.00S 21 0 0 60 23 12.3 5 24 35 -10 32 169 1.58 203.6 178.78 0.05S 21 30 0 60 12 38.1 5 25 13 -10 33 170 1.57 203.6 178.84 0.11S 22 0 0 60 1 54.9 5 25 51 -9 33 171 1.55 203.7 178.90 0.17S 22 30 0 59 51 2.8 5 26 29 -9 33 172 1.54 203.7 178.95 0.22S 23 0 0 59 40 1.6 5 27 8 -9 33 172 1.53 203.8 179.01 0.28S 23 30 0 59 28 51.4 5 27 48 -8 33 173 1.51 203.8 179.07 0.34S 24 0 0 59 17 31.9 5 28 28 -8 34 174 1.50 203.9 179.13 0.40S 24 30 0 59 6 3.3 5 29 9 -8 34 175 1.49 204.0 179.18 0.45S 25 0 0 58 54 25.4 5 29 51 -7 34 176 1.47 204.0 179.24 0.51S 25 30 0 58 42 38.1 5 30 34 -7 34 176 1.46 204.1 179.30 0.57S 26 0 0 58 30 41.4 5 31 17 -6 35 177 1.45 204.1 179.35 0.63S 26 30 0 58 18 35.3 5 32 0 -6 35 178 1.44 204.2 179.41 0.68S 27 0 0 58 6 19.7 5 32 45 -6 35 179 1.43 204.2 179.47 0.74S 27 30 0 57 53 54.7 5 33 30 -5 35 180 1.42 204.3 179.52 0.80S 28 0 0 57 41 20.1 5 34 15 -5 35 180 1.40 204.4 179.58 0.85S 28 30 0 57 28 36.0 5 35 2 -4 36 181 1.39 204.4 179.64 0.91S 29 0 0 57 15 42.3 5 35 49 -4 36 182 1.38 204.5 179.69 0.96S 29 30 0 57 2 39.1 5 36 36 -3 36 183 1.37 204.5 179.75 1.02S 30 0 0 56 49 26.3 5 37 25 -3 36 184 1.36 204.6 179.80 1.07S 30 30 0 56 36 4.1 5 38 14 -3 36 185 1.35 204.6 179.86 1.13S 31 0 0 56 22 32.4 5 39 4 -2 37 186 1.34 204.7 179.91 1.18S 31 30 0 56 8 51.1 5 39 54 -2 37 187 1.34 204.7 179.96 1.23S 32 0 0 55 55 0.4 5 40 46 -1 37 188 1.33 204.8 180.01 1.29S 32 30 0 55 41 0.4 5 41 38 -1 37 188 1.32 204.8 180.07 1.34S 33 0 0 55 26 51.1 5 42 30 0 37 189 1.31 204.9 180.12 1.39S 33 30 0 55 12 32.6 5 43 24 0 38 190 1.30 204.9 180.17 1.44S 34 0 0 54 58 5.0 5 44 18 1 38 191 1.30 205.0 180.22 1.49S 34 30 0 54 43 28.3 5 45 12 1 38 192 1.29 205.0 180.26 1.54S 35 0 0 54 28 42.8 5 46 8 2 38 193 1.28 205.1 180.31 1.58S 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] Librations Long +6.83 Lat -0.91 P +179.17 D -0.56 Illumination of moon 31%- Elongation of Moon 68 Vertical Profile Scale approx. 2.93 km/arcsec at mean distance of moon Horizontal Scale Factor 1.50 deg/min At longitude 25.00: Limiting Magnitudes for various telescope apertures (in cm) CA\Tdia 5 10 15 20 25 30 35 -3.5 3.2 4.6 5.4 5.8 6.1 6.3 6.4 -1.5 3.2 4.6 5.4 5.8 6.1 6.3 6.4 0.5 5.0 6.4 7.2 7.7 8.0 8.3 8.5 2.5 5.0 6.5 7.2 7.7 8.1 8.3 8.5 4.5 5.0 6.5 7.2 7.7 8.1 8.3 8.5 ------------------------------------------------------------------------------ Results of Observer Scan UT Site Long. Lat. Dist. h m s Artjärvi Tähtikallio 26.2 60.7 196km 5 31 35 Forssa 23.6 60.8 120km 5 27 59 Hämeenlinna 24.4 61.0 161km 5 29 4 Hamina 27.2 60.6 215km 5 33 3 Helsinki Kaivopuisto 25.0 60.2 107km 5 29 47 Järvenpää 25.1 60.5 139km 5 29 59 Kangasala 24.0 61.4 182km 5 28 29 Kemiö 22.8 60.1 35km 5 26 51 Lahti Pirttiharju 25.6 61.0 197km 5 30 41 Loviisa 26.2 60.5 174km 5 31 36 Maarianhamina 19.9 60.1 59km 5 23 18 Merikarvia 21.5 61.9 145km 5 25 13 Pirkkola 24.9 60.2 112km 5 29 43 Pori 21.8 61.5 122km 5 25 35 Porvoo 25.7 60.4 151km 5 30 50 Salo 23.1 60.4 68km 5 27 19 Tallinna 24.8 59.4 35km 5 29 30 Tampere Kauppi 23.8 61.5 185km 5 28 12 Turku Isoheikkilä 22.2 60.5 45km 5 26 8 Ulvila Vesitorni 21.9 61.4 121km 5 25 45