Grazing Occultation of 702cA4 Magnitude 5.1 [Red = 5.0] R702 = sigma 1 Tauri Date: 2017 Feb 05 23h 29m, to 2017 Feb 05 23h 41m 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 67 15 6.0 23 32 36 19 265 2.84 173.9 181.53 -4.30S 19 0 0 67 4 11.7 23 33 4 19 266 2.91 173.9 181.58 -4.35S 20 0 0 66 53 0.3 23 33 32 19 267 2.98 174.0 181.63 -4.40S 21 0 0 66 41 31.8 23 34 0 18 268 3.06 174.0 181.68 -4.45S 22 0 0 66 29 46.1 23 34 28 18 269 3.14 174.1 181.73 -4.50S 23 0 0 66 17 43.2 23 34 55 17 270 3.23 174.1 181.78 -4.55S 24 0 0 66 5 23.8 23 35 21 17 271 3.32 174.2 181.83 -4.60S 25 0 0 65 52 46.4 23 35 47 16 272 3.42 174.2 181.88 -4.65S 26 0 0 65 39 52.0 23 36 13 16 273 3.52 174.2 181.92 -4.69S 27 0 0 65 26 40.5 23 36 38 15 274 3.64 174.3 181.97 -4.74S 28 0 0 65 13 10.9 23 37 3 15 275 3.76 174.3 182.02 -4.79S 29 0 0 64 59 25.1 23 37 27 14 277 3.89 174.4 182.06 -4.83S 30 0 0 64 45 22.9 23 37 51 14 278 4.04 174.4 182.11 -4.88S 31 0 0 64 31 4.4 23 38 14 13 279 4.19 174.5 182.15 -4.92S 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] 702 is double: This next pair is not confirmed ** 5.4 7.4 0.001" 350.0 (OCc1240) Graze path of ? approximately 0.0 km south, and 0.0 secs earlier compared to the primary - refer to graze profile for exact distances Librations Long -0.55 Lat +7.53 P +181.82 D +7.81 Illumination of moon 70%+ Elongation of Moon 113 Vertical Profile Scale approx. 3.07 km/arcsec at mean distance of moon Horizontal Scale Factor 2.06 deg/min At longitude 25.00: Limiting Magnitudes for various telescope apertures (in cm) CA\Tdia 5 10 15 20 25 30 35 -8.6 2.5 3.8 4.5 4.8 5.0 5.1 5.2 -6.6 2.5 3.8 4.5 4.8 5.0 5.1 5.2 -4.6 2.5 3.8 4.5 4.8 5.0 5.1 5.2 -2.6 2.5 3.8 4.5 4.8 5.0 5.1 5.2 -0.6 2.5 3.8 4.5 4.8 5.0 5.1 5.2 ------------------------------------------------------------------------------ Results of Observer Scan UT Site Long. Lat. Dist. h m s Pudasjärvi 27.0 65.4 8km 23 36 37.7 Tervola 24.8 66.1 16km 23 35 42.0 Tornio 24.1 65.8 21km 23 35 24.8 Ranua 26.5 65.9 37km 23 36 25.7 Puolanka 27.7 64.9 42km 23 36 54.8 Pello 24.0 66.8 66km 23 35 20.1 Kuhmo 29.5 64.1 73km 23 37 39.1 Oulu Puolivälikangas 25.5 65.0 73km 23 35 59.7 Rovaniemi 25.7 66.5 75km 23 36 5.9 Posio 28.2 66.1 90km 23 37 6.9 Kuusamo 29.2 66.0 98km 23 37 31.7 Grazing Occultation of 702cA4 Magnitude 5.1 [Red = 5.0] R702 = sigma 1 Tauri Date: 2017 Feb 05 23h 29m, to 2017 Feb 05 23h 41m 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 68 32 10.1 23 28 38 23 256 2.41 173.4 181.11 -3.88S 10 15 0 68 30 1.8 23 28 46 22 256 2.42 173.4 181.12 -3.89S 10 30 0 68 27 52.4 23 28 53 22 256 2.43 173.5 181.14 -3.91S 10 45 0 68 25 42.1 23 29 1 22 257 2.45 173.5 181.15 -3.92S 11 0 0 68 23 30.7 23 29 8 22 257 2.46 173.5 181.16 -3.93S 11 15 0 68 21 18.2 23 29 16 22 257 2.47 173.5 181.18 -3.95S 11 30 0 68 19 4.8 23 29 24 22 257 2.48 173.5 181.19 -3.96S 11 45 0 68 16 50.3 23 29 31 22 258 2.49 173.5 181.20 -3.97S 12 0 0 68 14 34.7 23 29 39 22 258 2.50 173.5 181.22 -3.98S 12 15 0 68 12 18.1 23 29 46 22 258 2.52 173.6 181.23 -4.00S 12 30 0 68 10 0.5 23 29 54 22 259 2.53 173.6 181.24 -4.01S 12 45 0 68 7 41.9 23 30 1 21 259 2.54 173.6 181.26 -4.02S 13 0 0 68 5 22.2 23 30 9 21 259 2.55 173.6 181.27 -4.04S 13 15 0 68 3 1.5 23 30 16 21 259 2.57 173.6 181.28 -4.05S 13 30 0 68 0 39.7 23 30 24 21 260 2.58 173.6 181.29 -4.06S 13 45 0 67 58 16.9 23 30 31 21 260 2.59 173.6 181.30 -4.06S 14 0 0 67 55 53.0 23 30 39 21 260 2.60 173.6 181.31 -4.08S 14 15 0 67 53 28.1 23 30 46 21 261 2.62 173.6 181.32 -4.09S 14 30 0 67 51 2.1 23 30 54 21 261 2.63 173.7 181.33 -4.10S 14 45 0 67 48 35.1 23 31 1 21 261 2.65 173.7 181.35 -4.12S 15 0 0 67 46 7.0 23 31 8 21 261 2.66 173.7 181.36 -4.13S 15 15 0 67 43 37.9 23 31 16 21 262 2.67 173.7 181.37 -4.14S 15 30 0 67 41 7.7 23 31 23 20 262 2.69 173.7 181.39 -4.16S 15 45 0 67 38 36.4 23 31 30 20 262 2.70 173.7 181.40 -4.17S 16 0 0 67 36 4.0 23 31 38 20 262 2.72 173.7 181.41 -4.18S 16 15 0 67 33 30.6 23 31 45 20 263 2.73 173.7 181.43 -4.19S 16 30 0 67 30 56.1 23 31 52 20 263 2.75 173.8 181.44 -4.21S 16 45 0 67 28 20.6 23 32 0 20 263 2.76 173.8 181.45 -4.22S 17 0 0 67 25 43.9 23 32 7 20 264 2.78 173.8 181.46 -4.23S 17 15 0 67 23 6.2 23 32 14 20 264 2.79 173.8 181.48 -4.25S 17 30 0 67 20 27.5 23 32 21 20 264 2.81 173.8 181.49 -4.26S 17 45 0 67 17 47.6 23 32 28 19 264 2.82 173.8 181.51 -4.28S 18 0 0 67 15 6.7 23 32 36 19 265 2.84 173.8 181.53 -4.30S 18 15 0 67 12 24.8 23 32 43 19 265 2.86 173.9 181.54 -4.31S 18 30 0 67 9 41.7 23 32 50 19 265 2.87 173.9 181.55 -4.32S 18 45 0 67 6 57.6 23 32 57 19 266 2.89 173.9 181.57 -4.33S 19 0 0 67 4 12.5 23 33 4 19 266 2.91 173.9 181.58 -4.35S 19 15 0 67 1 26.2 23 33 11 19 266 2.93 173.9 181.59 -4.36S 19 30 0 66 58 38.9 23 33 18 19 266 2.94 173.9 181.60 -4.37S 19 45 0 66 55 50.6 23 33 25 19 267 2.96 173.9 181.62 -4.38S 20 0 0 66 53 1.1 23 33 32 19 267 2.98 174.0 181.63 -4.40S 20 15 0 66 50 10.6 23 33 39 18 267 3.00 174.0 181.64 -4.41S 20 30 0 66 47 19.0 23 33 46 18 267 3.02 174.0 181.65 -4.42S 20 45 0 66 44 26.4 23 33 53 18 268 3.04 174.0 181.67 -4.43S 21 0 0 66 41 32.6 23 34 0 18 268 3.06 174.0 181.68 -4.45S 21 15 0 66 38 37.8 23 34 7 18 268 3.08 174.0 181.69 -4.46S 21 30 0 66 35 41.9 23 34 14 18 269 3.10 174.0 181.70 -4.47S 21 45 0 66 32 45.0 23 34 21 18 269 3.12 174.0 181.72 -4.48S 22 0 0 66 29 47.0 23 34 27 18 269 3.14 174.1 181.73 -4.50S 22 15 0 66 26 47.8 23 34 34 18 269 3.16 174.1 181.74 -4.51S 22 30 0 66 23 47.6 23 34 41 17 270 3.18 174.1 181.75 -4.52S 22 45 0 66 20 46.4 23 34 48 17 270 3.20 174.1 181.76 -4.53S 23 0 0 66 17 44.0 23 34 54 17 270 3.22 174.1 181.78 -4.55S 23 15 0 66 14 41.7 23 35 1 17 270 3.25 174.1 181.79 -4.56S 23 30 0 66 11 36.8 23 35 8 17 271 3.27 174.1 181.80 -4.57S 23 45 0 66 8 31.3 23 35 14 17 271 3.29 174.1 181.81 -4.58S 24 0 0 66 5 24.7 23 35 21 17 271 3.32 174.1 181.83 -4.59S 24 15 0 66 2 16.9 23 35 27 17 272 3.34 174.2 181.84 -4.61S 24 30 0 65 59 8.2 23 35 34 17 272 3.37 174.2 181.85 -4.62S 24 45 0 65 55 58.3 23 35 41 16 272 3.39 174.2 181.86 -4.63S 25 0 0 65 52 47.4 23 35 47 16 272 3.42 174.2 181.87 -4.64S 25 15 0 65 49 35.4 23 35 53 16 273 3.44 174.2 181.89 -4.65S 25 30 0 65 46 22.3 23 36 0 16 273 3.47 174.2 181.90 -4.67S 25 45 0 65 43 8.2 23 36 6 16 273 3.49 174.2 181.91 -4.68S 26 0 0 65 39 53.0 23 36 13 16 273 3.52 174.2 181.92 -4.69S 26 15 0 65 36 36.7 23 36 19 16 274 3.55 174.3 181.93 -4.70S 26 30 0 65 33 19.4 23 36 25 16 274 3.58 174.3 181.95 -4.71S 26 45 0 65 30 1.0 23 36 32 15 274 3.61 174.3 181.96 -4.73S 27 0 0 65 26 41.6 23 36 38 15 274 3.64 174.3 181.97 -4.74S 27 15 0 65 23 21.0 23 36 44 15 275 3.67 174.3 181.98 -4.75S 27 30 0 65 19 59.5 23 36 50 15 275 3.70 174.3 181.99 -4.76S 27 45 0 65 16 36.9 23 36 56 15 275 3.73 174.3 182.00 -4.77S 28 0 0 65 13 12.1 23 37 3 15 275 3.76 174.3 182.01 -4.78S 28 15 0 65 9 47.4 23 37 9 15 276 3.79 174.3 182.03 -4.80S 28 30 0 65 6 21.1 23 37 15 15 276 3.82 174.4 182.03 -4.80S 28 45 0 65 2 54.2 23 37 21 15 276 3.86 174.4 182.04 -4.81S 29 0 0 64 59 26.2 23 37 27 14 277 3.89 174.4 182.05 -4.82S 29 15 0 64 55 57.3 23 37 33 14 277 3.93 174.4 182.06 -4.83S 29 30 0 64 52 27.3 23 37 39 14 277 3.96 174.4 182.08 -4.84S 29 45 0 64 48 56.2 23 37 45 14 277 4.00 174.4 182.09 -4.86S 30 0 0 64 45 24.2 23 37 50 14 278 4.03 174.4 182.10 -4.87S 30 15 0 64 41 51.1 23 37 56 14 278 4.07 174.4 182.11 -4.88S 30 30 0 64 38 17.0 23 38 2 14 278 4.11 174.4 182.12 -4.89S 30 45 0 64 34 41.8 23 38 8 14 278 4.15 174.5 182.13 -4.90S 31 0 0 64 31 5.6 23 38 14 13 279 4.19 174.5 182.14 -4.91S 31 15 0 64 27 28.4 23 38 19 13 279 4.23 174.5 182.15 -4.92S 31 30 0 64 23 50.2 23 38 25 13 279 4.27 174.5 182.17 -4.93S 31 45 0 64 20 11.0 23 38 30 13 279 4.32 174.5 182.18 -4.95S 32 0 0 64 16 30.8 23 38 36 13 280 4.36 174.5 182.19 -4.96S 32 15 0 64 12 49.5 23 38 41 13 280 4.41 174.5 182.20 -4.97S 32 30 0 64 9 7.2 23 38 47 13 280 4.45 174.5 182.21 -4.98S 32 45 0 64 5 24.0 23 38 52 13 280 4.50 174.5 182.22 -4.99S 33 0 0 64 1 39.7 23 38 58 12 281 4.55 174.6 182.23 -5.00S 33 15 0 63 57 54.5 23 39 3 12 281 4.60 174.6 182.24 -5.01S 33 30 0 63 54 8.2 23 39 8 12 281 4.65 174.6 182.25 -5.02S 33 45 0 63 50 21.0 23 39 14 12 281 4.70 174.6 182.26 -5.03S 34 0 0 63 46 32.8 23 39 19 12 282 4.75 174.6 182.27 -5.04S 34 15 0 63 42 43.6 23 39 24 12 282 4.81 174.6 182.28 -5.05S 34 30 0 63 38 53.5 23 39 29 12 282 4.86 174.6 182.30 -5.06S 34 45 0 63 35 2.3 23 39 34 11 282 4.92 174.6 182.31 -5.07S 35 0 0 63 31 10.3 23 39 39 11 283 4.98 174.6 182.32 -5.09S 35 15 0 63 27 17.2 23 39 44 11 283 5.04 174.7 182.33 -5.10S 35 30 0 63 23 23.2 23 39 49 11 283 5.10 174.7 182.34 -5.11S 35 45 0 63 19 28.2 23 39 54 11 283 5.17 174.7 182.35 -5.12S 36 0 0 63 15 32.3 23 39 59 11 284 5.23 174.7 182.36 -5.13S 36 15 0 63 11 35.5 23 40 4 11 284 5.30 174.7 182.37 -5.14S 36 30 0 63 7 37.7 23 40 8 11 284 5.37 174.7 182.38 -5.15S 36 45 0 63 3 39.0 23 40 13 10 284 5.44 174.7 182.39 -5.16S 37 0 0 62 59 39.3 23 40 18 10 285 5.51 174.7 182.40 -5.17S 37 15 0 62 55 38.8 23 40 22 10 285 5.59 174.7 182.41 -5.18S 37 30 0 62 51 37.3 23 40 27 10 285 5.66 174.7 182.42 -5.19S 37 45 0 62 47 35.0 23 40 32 10 285 5.74 174.8 182.43 -5.20S 38 0 0 62 43 31.7 23 40 36 10 286 5.83 174.8 182.44 -5.21S 38 15 0 62 39 27.5 23 40 40 10 286 5.91 174.8 182.45 -5.22S 38 30 0 62 35 22.4 23 40 45 9 286 6.00 174.8 182.46 -5.23S 38 45 0 62 31 16.5 23 40 49 9 286 6.09 174.8 182.47 -5.24S 39 0 0 62 27 9.6 23 40 53 9 287 6.18 174.8 182.48 -5.25S 39 15 0 62 23 1.9 23 40 57 9 287 6.28 174.8 182.49 -5.25S 39 30 0 62 18 53.3 23 41 2 9 287 6.38 174.8 182.50 -5.26S 39 45 0 62 14 43.9 23 41 6 9 287 6.48 174.8 182.50 -5.27S 40 0 0 62 10 33.6 23 41 10 9 288 6.59 174.8 182.51 -5.28S 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] 702 is double: This next pair is not confirmed ** 5.4 7.4 0.001" 350.0 (OCc1240) Graze path of ? approximately 0.0 km south, and 0.0 secs earlier compared to the primary - refer to graze profile for exact distances Librations Long -0.55 Lat +7.53 P +181.82 D +7.81 Illumination of moon 70%+ Elongation of Moon 113 Vertical Profile Scale approx. 3.07 km/arcsec at mean distance of moon Horizontal Scale Factor 2.06 deg/min At longitude 25.00: Limiting Magnitudes for various telescope apertures (in cm) CA\Tdia 5 10 15 20 25 30 35 -8.6 2.5 3.8 4.5 4.8 5.0 5.1 5.2 -6.6 2.5 3.8 4.5 4.8 5.0 5.1 5.2 -4.6 2.5 3.8 4.5 4.8 5.0 5.1 5.2 -2.6 2.5 3.8 4.5 4.8 5.0 5.1 5.2 -0.6 2.5 3.8 4.5 4.8 5.0 5.1 5.2 ------------------------------------------------------------------------------ Double star catalogue details Interferometric catalogue entries 043909.20+154800.1 HR 1478 sig 1 Tau HD 29479 HIP 21673 04392+1548 Date PA Sep M1 M2 1976.8602 . . < 0.035 . . . . . 552 20 3.8 1 McA1978c Sc 1976.9229 . . < 0.035 . . . . . 552 20 3.8 1 McA1978c Sc 1979.774 . . < 0.030 . . . . . 470 3.8 1 Hrt1984 Sc 1980.156 . . < 0.030 . . . . . 470 3.8 1 Hrt1984 Sc 1980.718 . . < 0.030 . . . . . 470 3.8 1 Hrt1984 Sc 1982.7606 . . < 0.036 . . . . . 549 22 3.8 1 Hrt1999d Sc 1985.8459 . . < 0.036 . . . . . 549 22 3.8 1 Hrt1999d Sc 1986.8918 . . < 0.036 . . . . . 549 22 3.8 1 Hrt1999d Sc 1991.25 . . G . . 5.08 . . . 511 222 0.3 1 HIP1997g Hh 1991.9021 . . < 0.036 . . . . . 549 22 3.8 1 Hrt1999d Sc ------------------------------------------------------------------------------ Results of Observer Scan UT Site Long. Lat. Dist. h m s Enontekiö 23.6 68.4 214km 23 35 10.9 Joensuu Jakokoski 30.0 62.7 200km 23 37 50.1 Kajaani Lehtikangas 27.7 64.2 105km 23 36 56.0 Kemijärvi 27.4 66.7 132km 23 36 48.6 Kilpisjärvi 20.8 69.0 226km 23 33 53.9 Kokkola 23.1 63.8 246km 23 34 57.6 Kolari 23.8 67.3 117km 23 35 15.1 Kuhmo 29.5 64.1 73km 23 37 38.8 Kuopio Huuhanmäki 27.6 62.9 240km 23 36 53.8 Kuusamo 29.2 66.0 98km 23 37 31.3 Meltaus 25.4 66.9 108km 23 35 56.2 Muonio 23.7 68.0 174km 23 35 12.0 Nilsiä 28.1 63.2 197km 23 37 4.6 Nurmes 29.1 63.5 139km 23 37 30.1 Oulu Puolivälikangas 25.5 65.0 73km 23 35 59.4 Pello 24.0 66.8 66km 23 35 19.8 Posio 28.2 66.1 90km 23 37 6.6 Pudasjärvi 27.0 65.4 8km 23 36 37.4 Puolanka 27.7 64.9 42km 23 36 54.4 Raahe 24.5 64.7 129km 23 35 33.3 Ranua 26.5 65.9 37km 23 36 25.4 Rovaniemi 25.7 66.5 75km 23 36 5.6 Salla 28.7 66.8 168km 23 37 18.6 Sodankylä 26.6 67.4 180km 23 36 27.6 Tervola 24.8 66.1 16km 23 35 41.7 Tornio 24.1 65.8 21km 23 35 24.5 Tulppio 29.2 67.8 267km 23 37 31.7 Vuotso 27.1 68.1 254km 23 36 40.7