Grazing Occultation of 1110SF0 Magnitude 3.5 [Red = 3.3] R1110 = Wasat = delta Geminorum Date: 2020 Feb 07 4h 14m, to 2020 Feb 07 4h 26m 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 31 10.0 4 14 21 17 287 3.33 186.2 176.73 1.96S 10 15 0 68 20 31.4 4 14 36 17 288 3.37 186.2 176.74 1.94S 10 30 0 68 9 52.5 4 14 51 16 288 3.40 186.2 176.76 1.93S 10 45 0 67 59 13.5 4 15 6 16 288 3.44 186.2 176.77 1.91S 11 0 0 67 48 34.5 4 15 21 16 289 3.48 186.2 176.79 1.90S 11 15 0 67 37 55.8 4 15 36 16 289 3.52 186.2 176.80 1.88S 11 30 0 67 27 17.3 4 15 51 16 289 3.56 186.3 176.82 1.87S 11 45 0 67 16 39.2 4 16 6 16 290 3.60 186.3 176.83 1.85S 12 0 0 67 6 1.6 4 16 20 15 290 3.64 186.3 176.85 1.84S 12 15 0 66 55 24.5 4 16 35 15 290 3.69 186.3 176.86 1.83S 12 30 0 66 44 43.3 4 16 49 15 291 3.73 186.3 176.87 1.81S 12 45 0 66 34 7.4 4 17 3 15 291 3.78 186.3 176.89 1.80S 13 0 0 66 23 32.4 4 17 17 15 291 3.83 186.3 176.90 1.79S 13 15 0 66 12 58.2 4 17 31 14 292 3.88 186.3 176.91 1.77S 13 30 0 66 2 25.1 4 17 44 14 292 3.93 186.4 176.92 1.76S 13 45 0 65 51 53.0 4 17 58 14 292 3.98 186.4 176.93 1.75S 14 0 0 65 41 22.2 4 18 11 14 293 4.04 186.4 176.95 1.74S 14 15 0 65 30 52.6 4 18 24 14 293 4.09 186.4 176.96 1.73S 14 30 0 65 20 24.4 4 18 37 14 293 4.15 186.4 176.97 1.72S 14 45 0 65 9 57.7 4 18 50 13 293 4.21 186.4 176.98 1.71S 15 0 0 64 59 32.5 4 19 2 13 294 4.27 186.4 176.99 1.70S 15 15 0 64 49 8.8 4 19 14 13 294 4.34 186.4 177.00 1.69S 15 30 0 64 38 46.8 4 19 27 13 294 4.40 186.4 177.01 1.68S 15 45 0 64 28 26.6 4 19 39 13 295 4.47 186.5 177.02 1.67S 16 0 0 64 18 8.1 4 19 50 12 295 4.54 186.5 177.03 1.66S 16 15 0 64 7 51.5 4 20 2 12 295 4.62 186.5 177.04 1.65S 16 30 0 63 57 36.7 4 20 14 12 296 4.69 186.5 177.04 1.64S 16 45 0 63 47 24.0 4 20 25 12 296 4.77 186.5 177.05 1.63S 17 0 0 63 37 13.3 4 20 36 12 296 4.85 186.5 177.06 1.63S 17 15 0 63 27 4.8 4 20 47 11 296 4.94 186.5 177.07 1.62S 17 30 0 63 16 58.5 4 20 57 11 297 5.02 186.5 177.07 1.61S 17 45 0 63 6 54.3 4 21 8 11 297 5.11 186.5 177.08 1.60S 18 0 0 62 56 52.5 4 21 18 11 297 5.21 186.5 177.09 1.60S 18 15 0 62 46 52.8 4 21 28 11 297 5.31 186.5 177.09 1.59S 18 30 0 62 36 55.5 4 21 38 10 298 5.41 186.5 177.10 1.59S 18 45 0 62 27 0.6 4 21 48 10 298 5.51 186.5 177.10 1.58S 19 0 0 62 17 8.0 4 21 57 10 298 5.62 186.5 177.11 1.58S 19 15 0 62 7 17.9 4 22 6 10 299 5.74 186.6 177.11 1.57S 19 30 0 61 57 30.2 4 22 16 10 299 5.86 186.6 177.12 1.57S 19 45 0 61 47 45.1 4 22 24 9 299 5.98 186.6 177.12 1.56S 20 0 0 61 38 2.6 4 22 33 9 299 6.11 186.6 177.13 1.56S 20 15 0 61 28 22.6 4 22 42 9 300 6.24 186.6 177.13 1.55S 20 30 0 61 18 45.3 4 22 50 9 300 6.39 186.6 177.13 1.55S 20 45 0 61 9 10.6 4 22 58 9 300 6.53 186.6 177.14 1.55S 21 0 0 60 59 38.6 4 23 6 9 300 6.69 186.6 177.14 1.54S 21 15 0 60 50 9.2 4 23 14 8 301 6.85 186.6 177.14 1.54S 21 30 0 60 40 42.6 4 23 21 8 301 7.02 186.6 177.15 1.54S 21 45 0 60 31 18.6 4 23 28 8 301 7.20 186.6 177.15 1.54S 22 0 0 60 21 57.4 4 23 36 8 301 7.39 186.6 177.15 1.54S 22 15 0 60 12 38.7 4 23 43 8 302 7.59 186.6 177.15 1.53S 22 30 0 60 3 23.1 4 23 49 7 302 7.80 186.6 177.15 1.53S 22 45 0 59 54 10.2 4 23 56 7 302 8.02 186.6 177.15 1.53S 23 0 0 59 45 0.2 4 24 2 7 302 8.25 186.6 177.15 1.53S 23 15 0 59 35 53.1 4 24 8 7 303 8.50 186.6 177.15 1.53S 23 30 0 59 26 48.8 4 24 14 7 303 8.76 186.6 177.15 1.53S 23 45 0 59 17 47.3 4 24 20 6 303 9.04 186.6 177.15 1.53S 24 0 0 59 8 48.6 4 24 26 6 303 9.34 186.6 177.15 1.53S 24 15 0 58 59 52.8 4 24 31 6 304 9.66 186.6 177.15 1.53S 24 30 0 58 51 1.7 4 24 36 6 304 10.00 186.6 177.15 1.53S 24 45 0 58 42 12.1 4 24 41 6 304 10.36 186.6 177.15 1.54S 25 0 0 58 33 26.7 4 24 46 5 304 10.75 186.6 177.15 1.54S 25 15 0 58 24 42.6 4 24 50 5 305 11.17 186.6 177.15 1.54S 25 30 0 58 16 1.4 4 24 55 5 305 11.63 186.6 177.14 1.54S 25 45 0 58 7 23.1 4 24 59 5 305 12.12 186.6 177.14 1.54S 26 0 0 57 58 42.3 4 25 3 5 305 12.65 186.6 177.14 1.54S 26 15 0 57 50 9.3 4 25 7 4 305 13.24 186.6 177.14 1.55S 26 30 0 57 41 39.3 4 25 11 4 306 13.88 186.6 177.14 1.55S 26 45 0 57 33 10.9 4 25 14 4 306 14.58 186.6 177.13 1.55S 27 0 0 57 24 47.2 4 25 18 4 306 15.35 186.6 177.13 1.56S 27 15 0 57 16 25.5 4 25 21 4 306 16.21 186.6 177.13 1.56S 27 30 0 57 8 6.5 4 25 24 3 307 17.18 186.6 177.12 1.56S 27 45 0 56 59 50.2 4 25 27 3 307 18.26 186.6 177.12 1.57S 28 0 0 56 51 36.6 4 25 29 3 307 19.48 186.6 177.11 1.57S 28 15 0 56 43 25.7 4 25 32 3 307 20.88 186.5 177.11 1.58S 28 30 0 56 35 17.3 4 25 34 3 307 22.49 186.5 177.10 1.58S 28 45 0 56 27 11.5 4 25 36 -12 2 308 24.37 186.5 177.10 1.59S 29 0 0 56 19 8.2 4 25 38 -12 2 308 26.58 186.5 177.09 1.59S 29 15 0 56 11 7.4 4 25 40 -12 2 308 29.24 186.5 177.09 1.60S 29 30 0 56 3 9.0 4 25 41 -11 2 308 32.47 186.5 177.08 1.60S 29 45 0 55 55 12.8 4 25 43 -11 2 309 36.51 186.5 177.08 1.61S 30 0 0 55 47 18.9 4 25 44 -11 1 309 41.69 186.5 177.07 1.61S 30 15 0 55 39 26.9 4 25 45 -11 1 309 48.56 186.5 177.07 1.62S 30 30 0 55 31 36.9 4 25 46 -11 1 309 58.13 186.5 177.06 1.62S 30 45 0 55 23 48.7 4 25 47 -11 1 309 72.39 186.5 177.05 1.63S 31 0 0 55 16 2.0 4 25 48 -10 1 310 95.89 186.5 177.05 1.64S 31 15 0 55 8 17.3 4 25 49 -10 0 310 99.00 186.5 177.04 1.64S 31 30 0 55 0 33.3 4 25 49 -10 0 310 99.00 186.5 177.04 1.65S 31 45 0 54 52 50.2 4 25 50 -10 0 310 99.00 186.5 177.03 1.65S 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 5 meters [Estimated] 1110 is quadruple: A 3.5 8.2 0.018" 69.4 (STF1066) Graze path of A approximately 0.0 km south, and 0.0 secs later compared to - refer to graze profile for exact distances This next pair is not confirmed **BC 9.0 9.0 0.50" 126.0 (OCc1061) Graze path of ? approximately 1.1 km north, and 0.7 secs later compared to the primary - refer to graze profile for exact distances AB 3.5 8.2 5.4" 229.3 (STF1066) Graze path of B approximately 17.8 km north, and 5.7 secs earlier compared to A - refer to graze profile for exact distances Librations Long -6.45 Lat -0.43 P +177.18 D -0.49 Illumination of moon 94%+ Elongation of Moon 151 Vertical Profile Scale approx. 4.29 km/arcsec at mean distance of moon Horizontal Scale Factor 2.28 deg/min At longitude 21.00: Limiting Magnitudes for various telescope apertures (in cm) CA\Tdia 5 10 15 20 25 30 35 -2.5 1.6 2.8 3.3 3.6 3.7 3.8 3.9 -0.5 1.6 2.8 3.3 3.6 3.7 3.8 3.9 1.5 1.6 2.8 3.3 3.6 3.7 3.8 3.9 3.5 1.6 2.8 3.3 3.6 3.7 3.8 3.9 5.5 1.9 3.1 3.6 3.9 4.0 4.1 4.2 ------------------------------------------------------------------------------ Double star catalogue details WDS entries RA Dec Name Y1 Y2 N PA PA Sep Sep M1 M2 07201+2159STF1066 1822 2016 267 198 230 7.1 5.5 3.55 8.18 A9III+K3V -026-012 +22 1645 NO 072007.39+215856.4 ------------------------------------------------ Interferometric catalogue entries 072007.39+215856.4 ADS 5983 STF1066 HD 56986 HIP 35550 07201+21 Date PA Sep M1 M2 N O 1991.25 . . O . . 3.50 . . . 511 222 0.3 1 HIP1997g H 072007.39+215856.4 ADS 5983 del Gem A HD 56986 HIP 35550 07202+21 Date PA Sep M1 M2 1976.8577 . . < 0.035 . . . . . 552 20 3.8 1 McA1978c S 1976.8605 . . < 0.035 . . . . . 552 20 3.8 1 McA1978c S 1977.0871 . . < 0.035 . . . . . 552 20 3.8 1 McA1978c S 1978.146 . . < 0.030 . . . . . 470 3.8 1 Hrt1984 S 1978.964 . . < 0.045 . . . . . 650 30 3.6 1 Ebe1986 S 1979.036 . . < 0.030 . . . . . 470 3.8 1 Hrt1984 S 1980.159 . . < 0.030 . . . . . 470 3.8 1 Hrt1984 S 1980.729 . . < 0.030 . . . . . 470 3.8 1 Hrt1984 S 1983.9341 . . < 0.06 . . . . . 550 3 2.0 1 Bnu1984 S 1993.8396 . . < 0.020 . . . . . 600 130 6.0 1 Bag1999a S ------------------------------------------------------------------------------ Results of Observer Scan UT Site Long. Lat. Dist. h m s Bodø 14.4 67.3 101km 4 18 31.6 Gävle 17.1 60.7 188km 4 20 40.5 Karstad 13.5 59.4 433km 4 17 44.5 Kilpisjärvi 20.8 69.0 433km 4 22 59.0 Maarianhamina 19.9 60.1 107km 4 22 31.0 Mora 14.5 61.0 274km 4 18 38.4 Skellfteå 20.9 64.8 231km 4 23 3.2 Stockholm 18.1 59.3 242km 4 21 20.2 Trondheim 10.4 63.4 285km 4 14 44.4 Umeå 20.3 63.8 149km 4 22 42.0 Virsbo, Gammelby 16.1 59.9 288km 4 19 54.1