Grazing Occultation of 851cA1 Magnitude 6.4 [Red = 6.4] Date: 2020 Jan 09 1h 26m, to 2020 Jan 09 1h 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 10 0 0 64 17 14.1 1 26 8 35 247 1.45 355.9 356.27 2.19N 10 15 0 64 14 37.4 1 26 19 35 247 1.45 355.9 356.29 2.21N 10 30 0 64 11 59.2 1 26 30 34 247 1.46 355.9 356.32 2.23N 10 45 0 64 9 19.6 1 26 40 34 248 1.46 355.9 356.34 2.26N 11 0 0 64 6 38.5 1 26 51 34 248 1.47 355.9 356.36 2.28N 11 15 0 64 3 55.9 1 27 2 34 248 1.48 356.0 356.39 2.30N 11 30 0 64 1 11.8 1 27 13 34 249 1.48 356.0 356.41 2.32N 11 45 0 63 58 26.2 1 27 24 34 249 1.49 356.0 356.43 2.35N 12 0 0 63 55 39.2 1 27 35 34 249 1.49 356.0 356.45 2.37N 12 15 0 63 52 50.6 1 27 45 34 250 1.50 356.1 356.48 2.39N 12 30 0 63 50 0.5 1 27 56 34 250 1.50 356.1 356.50 2.42N 12 45 0 63 47 8.9 1 28 7 34 250 1.51 356.1 356.52 2.44N 13 0 0 63 44 15.8 1 28 18 33 251 1.52 356.1 356.55 2.46N 13 15 0 63 41 21.2 1 28 29 33 251 1.52 356.2 356.57 2.48N 13 30 0 63 38 25.1 1 28 39 33 251 1.53 356.2 356.59 2.51N 13 45 0 63 35 27.4 1 28 50 33 252 1.54 356.2 356.61 2.53N 14 0 0 63 32 28.3 1 29 1 33 252 1.54 356.2 356.64 2.55N 14 15 0 63 29 27.6 1 29 12 33 252 1.55 356.2 356.66 2.58N 14 30 0 63 26 25.3 1 29 23 33 253 1.56 356.3 356.68 2.60N 14 45 0 63 23 21.5 1 29 33 33 253 1.56 356.3 356.70 2.62N 15 0 0 63 20 16.2 1 29 44 33 253 1.57 356.3 356.73 2.64N 15 15 0 63 17 9.3 1 29 55 32 254 1.58 356.3 356.75 2.67N 15 30 0 63 14 0.9 1 30 6 32 254 1.58 356.4 356.77 2.69N 15 45 0 63 10 50.9 1 30 16 32 254 1.59 356.4 356.79 2.71N 16 0 0 63 7 39.4 1 30 27 32 255 1.60 356.4 356.82 2.73N 16 15 0 63 4 26.3 1 30 38 32 255 1.60 356.4 356.84 2.76N 16 30 0 63 1 11.6 1 30 49 32 255 1.61 356.4 356.86 2.78N 16 45 0 62 57 55.4 1 30 59 32 256 1.62 356.5 356.88 2.80N 17 0 0 62 54 37.7 1 31 10 32 256 1.63 356.5 356.91 2.82N 17 15 0 62 51 18.3 1 31 21 31 256 1.63 356.5 356.93 2.85N 17 30 0 62 47 57.4 1 31 32 31 256 1.64 356.5 356.95 2.87N 17 45 0 62 44 35.0 1 31 42 31 257 1.65 356.6 356.97 2.89N 18 0 0 62 41 10.9 1 31 53 31 257 1.66 356.6 357.00 2.91N 18 15 0 62 37 45.2 1 32 4 31 257 1.66 356.6 357.02 2.93N 18 30 0 62 34 18.0 1 32 14 31 258 1.67 356.6 357.04 2.96N 18 45 0 62 30 49.2 1 32 25 31 258 1.68 356.6 357.06 2.98N 19 0 0 62 27 18.7 1 32 36 31 258 1.69 356.7 357.09 3.00N 19 15 0 62 23 46.7 1 32 47 31 259 1.70 356.7 357.11 3.02N 19 30 0 62 20 13.1 1 32 57 30 259 1.71 356.7 357.13 3.04N 19 45 0 62 16 37.8 1 33 8 30 259 1.71 356.7 357.15 3.07N 20 0 0 62 13 1.0 1 33 18 30 260 1.72 356.8 357.17 3.09N 20 15 0 62 9 22.5 1 33 29 30 260 1.73 356.8 357.20 3.11N 20 30 0 62 5 42.5 1 33 40 30 260 1.74 356.8 357.22 3.13N 20 45 0 62 2 0.8 1 33 50 30 260 1.75 356.8 357.24 3.15N 21 0 0 61 58 17.5 1 34 1 30 261 1.76 356.8 357.26 3.18N 21 15 0 61 54 32.6 1 34 12 30 261 1.77 356.9 357.28 3.20N 21 30 0 61 50 46.1 1 34 22 29 261 1.78 356.9 357.30 3.22N 21 45 0 61 46 58.0 1 34 33 29 262 1.79 356.9 357.33 3.24N 22 0 0 61 43 8.2 1 34 43 29 262 1.79 356.9 357.35 3.26N 22 15 0 61 39 16.8 1 34 54 29 262 1.80 357.0 357.37 3.29N 22 30 0 61 35 23.8 1 35 4 29 263 1.81 357.0 357.39 3.31N 22 45 0 61 31 29.2 1 35 15 29 263 1.82 357.0 357.41 3.33N 23 0 0 61 27 32.9 1 35 25 29 263 1.83 357.0 357.44 3.35N 23 15 0 61 23 35.1 1 35 36 28 264 1.84 357.0 357.46 3.37N 23 30 0 61 19 35.6 1 35 46 28 264 1.85 357.1 357.48 3.39N 23 45 0 61 15 34.4 1 35 57 28 264 1.86 357.1 357.50 3.41N 24 0 0 61 11 31.7 1 36 7 28 264 1.88 357.1 357.52 3.44N 24 15 0 61 7 27.3 1 36 18 28 265 1.89 357.1 357.54 3.46N 24 30 0 61 3 21.2 1 36 28 28 265 1.90 357.1 357.56 3.48N 24 45 0 60 59 13.6 1 36 38 28 265 1.91 357.2 357.58 3.50N 25 0 0 60 55 4.3 1 36 49 28 266 1.92 357.2 357.60 3.52N 25 15 0 60 50 53.4 1 36 59 27 266 1.93 357.2 357.63 3.54N 25 30 0 60 46 40.8 1 37 10 27 266 1.94 357.2 357.65 3.56N 25 45 0 60 42 26.7 1 37 20 27 267 1.95 357.3 357.67 3.58N 26 0 0 60 38 10.9 1 37 30 27 267 1.97 357.3 357.69 3.60N 26 15 0 60 33 53.4 1 37 40 27 267 1.98 357.3 357.71 3.62N 26 30 0 60 29 34.3 1 37 51 27 267 1.99 357.3 357.73 3.64N 26 45 0 60 25 13.6 1 38 1 27 268 2.00 357.3 357.75 3.67N 27 0 0 60 20 51.3 1 38 11 26 268 2.01 357.4 357.77 3.69N 27 15 0 60 16 27.3 1 38 21 26 268 2.03 357.4 357.79 3.71N 27 30 0 60 12 1.7 1 38 32 26 269 2.04 357.4 357.81 3.73N 27 45 0 60 7 34.5 1 38 42 26 269 2.05 357.4 357.83 3.75N 28 0 0 60 3 5.7 1 38 52 26 269 2.07 357.4 357.85 3.77N 28 15 0 59 58 35.2 1 39 2 26 269 2.08 357.5 357.87 3.79N 28 30 0 59 54 3.1 1 39 12 26 270 2.09 357.5 357.89 3.81N 28 45 0 59 49 29.4 1 39 22 25 270 2.11 357.5 357.91 3.83N 29 0 0 59 44 54.1 1 39 32 25 270 2.12 357.5 357.93 3.85N 29 15 0 59 40 17.1 1 39 42 25 271 2.14 357.5 357.95 3.87N 29 30 0 59 35 38.5 1 39 52 25 271 2.15 357.6 357.97 3.89N 29 45 0 59 30 58.4 1 40 2 25 271 2.16 357.6 357.99 3.91N 30 0 0 59 26 16.6 1 40 12 25 271 2.18 357.6 358.01 3.93N 30 15 0 59 21 33.2 1 40 22 24 272 2.19 357.6 358.03 3.95N 30 30 0 59 16 48.3 1 40 32 24 272 2.21 357.6 358.05 3.97N 30 45 0 59 12 1.7 1 40 42 24 272 2.23 357.7 358.07 3.99N 31 0 0 59 7 13.6 1 40 52 24 273 2.24 357.7 358.09 4.00N 31 15 0 59 2 23.8 1 41 1 24 273 2.26 357.7 358.11 4.02N 31 30 0 58 57 32.5 1 41 11 24 273 2.27 357.7 358.13 4.04N 31 45 0 58 52 39.5 1 41 21 24 273 2.29 357.7 358.15 4.06N 32 0 0 58 47 45.0 1 41 30 23 274 2.31 357.8 358.17 4.08N 32 15 0 58 42 48.9 1 41 40 23 274 2.33 357.8 358.19 4.10N 32 30 0 58 37 51.3 1 41 50 23 274 2.34 357.8 358.21 4.12N 32 45 0 58 32 52.1 1 41 59 23 275 2.36 357.8 358.22 4.14N 33 0 0 58 27 51.3 1 42 9 23 275 2.38 357.8 358.24 4.16N 33 15 0 58 22 49.0 1 42 18 23 275 2.40 357.8 358.26 4.18N 33 30 0 58 17 45.1 1 42 28 22 275 2.42 357.9 358.28 4.19N 33 45 0 58 12 39.8 1 42 37 22 276 2.44 357.9 358.30 4.21N 34 0 0 58 7 32.8 1 42 47 22 276 2.46 357.9 358.32 4.23N 34 15 0 58 2 24.4 1 42 56 22 276 2.48 357.9 358.33 4.25N 34 30 0 57 57 14.4 1 43 5 22 276 2.50 357.9 358.35 4.27N 34 45 0 57 52 3.0 1 43 15 22 277 2.52 358.0 358.37 4.28N 35 0 0 57 46 50.0 1 43 24 22 277 2.54 358.0 358.39 4.30N 35 15 0 57 41 35.5 1 43 33 21 277 2.56 358.0 358.41 4.32N 35 30 0 57 36 19.5 1 43 42 21 278 2.58 358.0 358.42 4.34N 35 45 0 57 31 2.1 1 43 51 21 278 2.60 358.0 358.44 4.36N 36 0 0 57 25 43.1 1 44 0 21 278 2.63 358.0 358.46 4.37N 36 15 0 57 20 22.7 1 44 9 21 278 2.65 358.1 358.48 4.39N 36 30 0 57 15 0.8 1 44 18 21 279 2.67 358.1 358.49 4.41N 36 45 0 57 9 37.5 1 44 27 20 279 2.70 358.1 358.51 4.42N 37 0 0 57 4 12.8 1 44 36 20 279 2.72 358.1 358.53 4.44N 37 15 0 56 58 46.6 1 44 45 20 279 2.75 358.1 358.55 4.46N 37 30 0 56 53 18.9 1 44 54 20 280 2.77 358.1 358.56 4.48N 37 45 0 56 47 49.9 1 45 2 20 280 2.80 358.2 358.58 4.49N 38 0 0 56 42 19.4 1 45 11 19 280 2.82 358.2 358.60 4.51N 38 15 0 56 36 47.5 1 45 20 19 280 2.85 358.2 358.61 4.53N 38 30 0 56 31 14.3 1 45 28 19 281 2.88 358.2 358.63 4.54N 38 45 0 56 25 39.7 1 45 37 19 281 2.91 358.2 358.64 4.56N 39 0 0 56 20 3.7 1 45 45 19 281 2.94 358.2 358.66 4.57N 39 15 0 56 14 26.4 1 45 54 19 281 2.97 358.3 358.68 4.59N 39 30 0 56 8 47.7 1 46 2 18 282 3.00 358.3 358.69 4.61N 39 45 0 56 3 7.7 1 46 10 18 282 3.03 358.3 358.71 4.62N 40 0 0 55 57 26.4 1 46 18 18 282 3.06 358.3 358.72 4.64N 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. 851 is double: This next pair is not confirmed ** 7.5 8.4 0.036" 283.5 (OCc 41) Graze path of ? approximately 0.0 km south, and 0.1 secs earlier compared to the primary - refer to graze profile for exact distances C A S S I N I R E G I O N G R A Z E Librations Long -6.03 Lat +2.18 P +357.41 D -1.66 Illumination of moon 96%+ Elongation of Moon 157 Vertical Profile Scale approx. 2.58 km/arcsec at mean distance of moon Horizontal Scale Factor 1.90 deg/min At longitude 25.00: Limiting Magnitudes for various telescope apertures (in cm) CA\Tdia 5 10 15 20 25 30 35 -0.5 2.2 3.6 4.3 4.7 4.9 5.1 5.2 1.5 2.2 3.6 4.3 4.7 4.9 5.1 5.2 3.5 2.2 3.6 4.3 4.7 4.9 5.1 5.2 5.5 2.2 3.6 4.3 4.7 4.9 5.1 5.2 7.5 2.6 4.0 4.7 5.1 5.4 5.5 5.7 ------------------------------------------------------------------------------ Double star catalogue details WDS entries RA Dec Name Y1 Y2 N PA PA Sep Sep M1 M2 05395+2146OCC 41 2011 2011 1 184 184 0.1 0.1 7.1 7.1 A1Vnp +006-031 +21 918 053927.11+214546.8 ------------------------------------------------ Interferometric catalogue entries 053927.11+214546.8 BD+21 918 OCC 41 HD 37439 HIP 26616 05395+21 Date PA Sep M1 M2 1926. V 90. . 0.1 . 7.1 . 7.1 . . 1 OCC2002 O 2011.98 184.2 7.2 0.094 0.038 . . 0.7 . . 2 OCC2012b O ------------------------------------------------------------------------------ Results of Observer Scan UT Site Long. Lat. Dist. h m s Ähtäri 24.1 62.6 133km 1 36 11.0 Gävle 17.1 60.7 223km 1 31 15.0 Helsinki Kaivopuisto 25.0 60.2 75km 1 36 46.9 Jyväskylä Rihlaperä 25.7 62.2 143km 1 37 17.8 Kuopio Huuhanmäki 27.6 62.9 253km 1 38 37.5 Lahti Pirttiharju 25.6 61.0 22km 1 37 13.1 Lappeenranta 28.2 61.1 100km 1 38 59.4 Mikkeli Kiiskinmäki 27.2 61.7 132km 1 38 20.9 Orimattila Artjärvi Tähtikallio 26.2 60.7 15km 1 37 38.8 Pietari 30.1 59.9 49km 1 40 14.8 Tallinna 24.8 59.4 155km 1 36 38.3 Tampere Kauppi 23.8 61.5 25km 1 35 58.4 Turku Iso-Heikkilä 22.2 60.5 119km 1 34 52.8 Ulvila Vesitorni 21.9 61.4 30km 1 34 40.0 Vaasa Sundom 21.6 63.0 117km 1 34 25.3