Grazing Occultation of 915cB2 Magnitude 4.6 [Red = 4.5] v R915 = chi 2 Orionis Date: 2019 Feb 15 15h 19m, to 2019 Feb 15 15h 38m 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 63 33 7.9 15 18 58 1 31 107 1.69 171.7 169.80 6.72S 15 7 30 63 35 52.7 15 19 6 1 31 107 1.69 171.7 169.81 6.71S 15 15 0 63 38 37.0 15 19 14 1 31 107 1.68 171.7 169.82 6.70S 15 22 30 63 41 20.8 15 19 21 1 31 107 1.68 171.7 169.83 6.69S 15 30 0 63 44 4.1 15 19 29 1 31 108 1.67 171.7 169.83 6.68S 15 37 30 63 46 47.0 15 19 36 0 31 108 1.67 171.7 169.84 6.68S 15 45 0 63 49 29.4 15 19 44 0 31 108 1.67 171.7 169.85 6.67S 15 52 30 63 52 11.3 15 19 51 0 31 108 1.66 171.7 169.86 6.66S 16 0 0 63 54 52.7 15 19 59 0 31 108 1.66 171.8 169.87 6.65S 16 7 30 63 57 33.6 15 20 6 0 31 109 1.66 171.8 169.88 6.64S 16 15 0 64 0 14.0 15 20 14 0 31 109 1.65 171.8 169.89 6.63S 16 22 30 64 2 54.0 15 20 21 0 31 109 1.65 171.8 169.89 6.62S 16 30 0 64 5 33.5 15 20 29 0 31 109 1.65 171.8 169.90 6.62S 16 37 30 64 8 12.4 15 20 37 0 31 109 1.64 171.8 169.91 6.61S 16 45 0 64 10 50.9 15 20 44 0 31 109 1.64 171.8 169.92 6.60S 16 52 30 64 13 28.9 15 20 52 0 31 110 1.64 171.8 169.93 6.59S 17 0 0 64 16 6.4 15 20 59 0 31 110 1.63 171.8 169.94 6.58S 17 7 30 64 18 43.5 15 21 7 -1 32 110 1.63 171.8 169.95 6.57S 17 15 0 64 21 20.0 15 21 14 -1 32 110 1.63 171.8 169.96 6.56S 17 22 30 64 23 56.1 15 21 22 -1 32 110 1.63 171.9 169.96 6.55S 17 30 0 64 26 31.7 15 21 29 -1 32 110 1.62 171.9 169.97 6.55S 17 37 30 64 29 6.8 15 21 37 -1 32 111 1.62 171.9 169.98 6.54S 17 45 0 64 31 41.3 15 21 44 -1 32 111 1.62 171.9 169.99 6.53S 17 52 30 64 34 15.5 15 21 51 -1 32 111 1.61 171.9 170.00 6.52S 18 0 0 64 36 49.1 15 21 59 -1 32 111 1.61 171.9 170.01 6.51S 18 7 30 64 39 22.2 15 22 6 -1 32 111 1.61 171.9 170.02 6.50S 18 15 0 64 41 54.9 15 22 14 -1 32 112 1.60 171.9 170.03 6.49S 18 22 30 64 44 27.0 15 22 21 -1 32 112 1.60 171.9 170.04 6.48S 18 30 0 64 46 58.7 15 22 29 -1 32 112 1.60 171.9 170.04 6.47S 18 37 30 64 49 29.8 15 22 36 -1 32 112 1.60 171.9 170.05 6.47S 18 45 0 64 52 0.5 15 22 44 -2 32 112 1.59 171.9 170.06 6.46S 18 52 30 64 54 30.7 15 22 51 -2 32 112 1.59 172.0 170.07 6.45S 19 0 0 64 57 0.4 15 22 59 -2 32 113 1.59 172.0 170.08 6.44S 19 7 30 64 59 29.7 15 23 6 -2 32 113 1.58 172.0 170.09 6.43S 19 15 0 65 1 58.4 15 23 13 -2 32 113 1.58 172.0 170.10 6.42S 19 22 30 65 4 26.6 15 23 21 -2 32 113 1.58 172.0 170.11 6.41S 19 30 0 65 6 54.4 15 23 28 -2 32 113 1.58 172.0 170.12 6.40S 19 37 30 65 9 21.6 15 23 36 -2 32 114 1.57 172.0 170.13 6.39S 19 45 0 65 11 48.4 15 23 43 -2 32 114 1.57 172.0 170.13 6.38S 19 52 30 65 14 14.7 15 23 50 -2 33 114 1.57 172.0 170.14 6.38S 20 0 0 65 16 40.5 15 23 58 -2 33 114 1.57 172.0 170.15 6.37S 20 7 30 65 19 5.8 15 24 5 -2 33 114 1.56 172.0 170.16 6.36S 20 15 0 65 21 30.6 15 24 12 -2 33 114 1.56 172.1 170.17 6.35S 20 22 30 65 23 55.0 15 24 20 -3 33 115 1.56 172.1 170.18 6.34S 20 30 0 65 26 18.8 15 24 27 -3 33 115 1.56 172.1 170.19 6.33S 20 37 30 65 28 42.2 15 24 34 -3 33 115 1.55 172.1 170.20 6.32S 20 45 0 65 31 5.1 15 24 42 -3 33 115 1.55 172.1 170.21 6.31S 20 52 30 65 33 27.5 15 24 49 -3 33 115 1.55 172.1 170.22 6.30S 21 0 0 65 35 49.4 15 24 56 -3 33 116 1.55 172.1 170.23 6.29S 21 7 30 65 38 10.8 15 25 4 -3 33 116 1.54 172.1 170.23 6.28S 21 15 0 65 40 31.7 15 25 11 -3 33 116 1.54 172.1 170.24 6.28S 21 22 30 65 42 52.2 15 25 18 -3 33 116 1.54 172.1 170.25 6.27S 21 30 0 65 45 12.1 15 25 26 -3 33 116 1.54 172.1 170.26 6.26S 21 37 30 65 47 31.6 15 25 33 -3 33 116 1.53 172.2 170.27 6.25S 21 45 0 65 49 50.6 15 25 40 -3 33 117 1.53 172.2 170.28 6.24S 21 52 30 65 52 9.1 15 25 47 -3 33 117 1.53 172.2 170.29 6.23S 22 0 0 65 54 27.1 15 25 55 -4 33 117 1.53 172.2 170.30 6.22S 22 7 30 65 56 44.7 15 26 2 -4 33 117 1.52 172.2 170.31 6.21S 22 15 0 65 59 1.7 15 26 9 -4 33 117 1.52 172.2 170.32 6.20S 22 22 30 66 1 18.3 15 26 16 -4 33 118 1.52 172.2 170.33 6.19S 22 30 0 66 3 34.4 15 26 24 -4 33 118 1.52 172.2 170.33 6.18S 22 37 30 66 5 50.0 15 26 31 -4 33 118 1.52 172.2 170.34 6.18S 22 45 0 66 8 5.2 15 26 38 -4 33 118 1.51 172.2 170.35 6.17S 22 52 30 66 10 19.8 15 26 45 -4 33 118 1.51 172.3 170.36 6.16S 23 0 0 66 12 34.0 15 26 52 -4 34 118 1.51 172.3 170.37 6.15S 23 7 30 66 14 47.7 15 27 0 -4 34 119 1.51 172.3 170.38 6.14S 23 15 0 66 17 0.9 15 27 7 -4 34 119 1.50 172.3 170.39 6.13S 23 22 30 66 19 13.7 15 27 14 -4 34 119 1.50 172.3 170.40 6.12S 23 30 0 66 21 25.9 15 27 21 -4 34 119 1.50 172.3 170.41 6.11S 23 37 30 66 23 37.7 15 27 28 -4 34 119 1.50 172.3 170.42 6.10S 23 45 0 66 25 49.0 15 27 35 -5 34 120 1.50 172.3 170.43 6.09S 23 52 30 66 27 59.8 15 27 42 -5 34 120 1.49 172.3 170.44 6.08S 24 0 0 66 30 10.2 15 27 50 -5 34 120 1.49 172.3 170.45 6.07S 24 7 30 66 32 20.1 15 27 57 -5 34 120 1.49 172.3 170.45 6.06S 24 15 0 66 34 29.5 15 28 4 -5 34 120 1.49 172.4 170.46 6.06S 24 22 30 66 36 38.4 15 28 11 -5 34 120 1.49 172.4 170.47 6.05S 24 30 0 66 38 46.9 15 28 18 -5 34 121 1.48 172.4 170.48 6.04S 24 37 30 66 40 54.9 15 28 25 -5 34 121 1.48 172.4 170.49 6.03S 24 45 0 66 43 2.4 15 28 32 -5 34 121 1.48 172.4 170.50 6.02S 24 52 30 66 45 9.5 15 28 39 -5 34 121 1.48 172.4 170.51 6.01S 25 0 0 66 47 16.1 15 28 46 -5 34 121 1.48 172.4 170.52 6.00S 25 7 30 66 49 22.2 15 28 53 -5 34 122 1.47 172.4 170.53 5.99S 25 15 0 66 51 27.8 15 29 0 -5 34 122 1.47 172.4 170.54 5.98S 25 22 30 66 53 33.0 15 29 7 -5 34 122 1.47 172.4 170.55 5.97S 25 30 0 66 55 37.7 15 29 14 -6 34 122 1.47 172.4 170.56 5.96S 25 37 30 66 57 42.0 15 29 21 -6 34 122 1.47 172.5 170.57 5.95S 25 45 0 66 59 45.8 15 29 28 -6 34 123 1.47 172.5 170.57 5.94S 25 52 30 67 1 49.1 15 29 35 -6 34 123 1.46 172.5 170.58 5.94S 26 0 0 67 3 52.0 15 29 42 -6 34 123 1.46 172.5 170.59 5.93S 26 7 30 67 5 54.4 15 29 49 -6 34 123 1.46 172.5 170.60 5.92S 26 15 0 67 7 56.3 15 29 56 -6 34 123 1.46 172.5 170.61 5.91S 26 22 30 67 9 57.8 15 30 3 -6 34 123 1.46 172.5 170.62 5.90S 26 30 0 67 11 58.8 15 30 10 -6 35 124 1.46 172.5 170.63 5.89S 26 37 30 67 13 59.4 15 30 17 -6 35 124 1.45 172.5 170.64 5.88S 26 45 0 67 15 59.5 15 30 24 -6 35 124 1.45 172.5 170.65 5.87S 26 52 30 67 17 59.1 15 30 31 -6 35 124 1.45 172.5 170.66 5.86S 27 0 0 67 19 58.3 15 30 38 -6 35 124 1.45 172.6 170.67 5.85S 27 7 30 67 21 57.0 15 30 45 -6 35 125 1.45 172.6 170.68 5.84S 27 15 0 67 23 55.3 15 30 52 -6 35 125 1.44 172.6 170.69 5.83S 27 22 30 67 25 53.1 15 30 58 -7 35 125 1.44 172.6 170.70 5.82S 27 30 0 67 27 50.5 15 31 5 -7 35 125 1.44 172.6 170.70 5.82S 27 37 30 67 29 47.4 15 31 12 -7 35 125 1.44 172.6 170.71 5.81S 27 45 0 67 31 43.9 15 31 19 -7 35 125 1.44 172.6 170.72 5.80S 27 52 30 67 33 39.9 15 31 26 -7 35 126 1.44 172.6 170.73 5.79S 28 0 0 67 35 35.5 15 31 33 -7 35 126 1.44 172.6 170.74 5.78S 28 7 30 67 37 30.6 15 31 40 -7 35 126 1.43 172.6 170.75 5.77S 28 15 0 67 39 25.2 15 31 46 -7 35 126 1.43 172.6 170.76 5.76S 28 22 30 67 41 19.5 15 31 53 -7 35 126 1.43 172.7 170.77 5.75S 28 30 0 67 43 13.2 15 32 0 -7 35 127 1.43 172.7 170.78 5.74S 28 37 30 67 45 6.6 15 32 7 -7 35 127 1.43 172.7 170.79 5.73S 28 45 0 67 46 59.4 15 32 14 -7 35 127 1.43 172.7 170.80 5.72S 28 52 30 67 48 51.9 15 32 20 -7 35 127 1.42 172.7 170.81 5.71S 29 0 0 67 50 43.9 15 32 27 -7 35 127 1.42 172.7 170.82 5.70S 29 7 30 67 52 35.4 15 32 34 -7 35 127 1.42 172.7 170.82 5.70S 29 15 0 67 54 26.5 15 32 41 -8 35 128 1.42 172.7 170.83 5.69S 29 22 30 67 56 17.2 15 32 47 -8 35 128 1.42 172.7 170.84 5.68S 29 30 0 67 58 7.4 15 32 54 -8 35 128 1.42 172.7 170.85 5.67S 29 37 30 67 59 57.2 15 33 1 -8 35 128 1.42 172.8 170.86 5.66S 29 45 0 68 1 46.6 15 33 7 -8 35 128 1.41 172.8 170.87 5.65S 29 52 30 68 3 35.5 15 33 14 -8 35 129 1.41 172.8 170.88 5.64S 30 0 0 68 5 24.0 15 33 21 -8 35 129 1.41 172.8 170.89 5.63S 30 7 30 68 7 12.1 15 33 27 -8 35 129 1.41 172.8 170.90 5.62S 30 15 0 68 8 59.7 15 33 34 -8 35 129 1.41 172.8 170.91 5.61S 30 22 30 68 10 46.9 15 33 41 -8 35 129 1.41 172.8 170.92 5.60S 30 30 0 68 12 33.6 15 33 47 -8 35 130 1.41 172.8 170.93 5.59S 30 37 30 68 14 19.9 15 33 54 -8 35 130 1.41 172.8 170.94 5.58S 30 45 0 68 16 5.8 15 34 1 -8 35 130 1.40 172.8 170.94 5.58S 30 52 30 68 17 51.3 15 34 7 -8 35 130 1.40 172.8 170.95 5.57S 31 0 0 68 19 36.3 15 34 14 -8 36 130 1.40 172.9 170.96 5.56S 31 7 30 68 21 21.0 15 34 21 -8 36 130 1.40 172.9 170.97 5.55S 31 15 0 68 23 5.1 15 34 27 -9 36 131 1.40 172.9 170.98 5.54S 31 22 30 68 24 48.9 15 34 34 -9 36 131 1.40 172.9 170.99 5.53S 31 30 0 68 26 32.2 15 34 40 -9 36 131 1.40 172.9 171.00 5.52S 31 37 30 68 28 15.2 15 34 47 -9 36 131 1.40 172.9 171.01 5.51S 31 45 0 68 29 57.6 15 34 53 -9 36 131 1.39 172.9 171.02 5.50S 31 52 30 68 31 39.7 15 35 0 -9 36 132 1.39 172.9 171.03 5.49S 32 0 0 68 33 21.4 15 35 6 -9 36 132 1.39 172.9 171.04 5.48S 32 7 30 68 35 2.6 15 35 13 -9 36 132 1.39 172.9 171.05 5.47S 32 15 0 68 36 43.4 15 35 19 -9 36 132 1.39 172.9 171.05 5.47S 32 22 30 68 38 23.8 15 35 26 -9 36 132 1.39 173.0 171.06 5.46S 32 30 0 68 40 3.8 15 35 32 -9 36 132 1.39 173.0 171.07 5.45S 32 37 30 68 41 43.4 15 35 39 -9 36 133 1.39 173.0 171.08 5.44S 32 45 0 68 43 22.5 15 35 45 -9 36 133 1.39 173.0 171.09 5.43S 32 52 30 68 45 1.3 15 35 52 -9 36 133 1.38 173.0 171.10 5.42S 33 0 0 68 46 39.6 15 35 58 -9 36 133 1.38 173.0 171.11 5.41S 33 7 30 68 48 17.5 15 36 5 -9 36 133 1.38 173.0 171.12 5.40S 33 15 0 68 49 55.1 15 36 11 -9 36 134 1.38 173.0 171.13 5.39S 33 22 30 68 51 32.2 15 36 18 -10 36 134 1.38 173.0 171.14 5.38S 33 30 0 68 53 8.9 15 36 24 -10 36 134 1.38 173.0 171.15 5.37S 33 37 30 68 54 45.2 15 36 31 -10 36 134 1.38 173.0 171.16 5.37S 33 45 0 68 56 21.0 15 36 37 -10 36 134 1.38 173.1 171.16 5.36S 33 52 30 68 57 56.5 15 36 43 -10 36 134 1.38 173.1 171.17 5.35S 34 0 0 68 59 31.6 15 36 50 -10 36 135 1.37 173.1 171.18 5.34S 34 7 30 69 1 6.3 15 36 56 -10 36 135 1.37 173.1 171.19 5.33S 34 15 0 69 2 40.6 15 37 2 -10 36 135 1.37 173.1 171.20 5.32S 34 22 30 69 4 14.4 15 37 9 -10 36 135 1.37 173.1 171.21 5.31S 34 30 0 69 5 47.9 15 37 15 -10 36 135 1.37 173.1 171.22 5.30S 34 37 30 69 7 21.0 15 37 21 -10 36 136 1.37 173.1 171.23 5.29S 34 45 0 69 8 53.7 15 37 28 -10 36 136 1.37 173.1 171.24 5.28S 34 52 30 69 10 25.9 15 37 34 -10 36 136 1.37 173.1 171.25 5.27S 35 0 0 69 11 57.8 15 37 40 -10 36 136 1.37 173.1 171.25 5.27S 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 2 meters [CHARM/CADARS, 3 measures] 915 is variable: 915 = khi 2 Ori, 4.68 to 4.72, Hp, Type ACYG, Period 2.8682 days, Phase 29 % 915 is double: This next pair is not confirmed ** 5.5 6.3 0.020" 178.0 (OCc 396) Graze path of ? approximately 0.1 km north, and 0.0 secs earlier compared to the primary - refer to graze profile for exact distances Librations Long -6.13 Lat +3.65 P +170.14 D +2.85 Illumination of moon 78%+ Elongation of Moon 124 Vertical Profile Scale approx. 3.03 km/arcsec at mean distance of moon Horizontal Scale Factor 1.87 deg/min At longitude 25.00: Limiting Magnitudes for various telescope apertures (in cm) CA\Tdia 5 10 15 20 25 30 35 2.0 2.9 4.3 5.0 5.4 5.7 5.9 6.0 4.0 4.5 6.0 6.7 7.2 7.5 7.7 7.8 6.0 4.6 6.0 6.7 7.2 7.5 7.7 7.9 8.0 5.3 6.8 7.5 8.0 8.3 8.5 8.7 10.0 5.4 6.8 7.6 8.1 8.4 8.6 8.8 ------------------------------------------------------------------------------ Double star catalogue details WDS entries RA Dec Name Y1 Y2 N PA PA Sep Sep M1 M2 06039+2008OCC 396 1975 1975 0 -1 -1 0.0 0.0 5.5 6.3 B2Ia +004-004 +20 1233 060355.18+200818.5 ------------------------------------------------ Interferometric catalogue entries 060355.18+200818.5 BD+20 1233 OCC 396 HD 41117 HIP 28716 06039+20 Date PA Sep M1 M2 1975. V178. . 0.02 . 5.5 . 6.3 . . 1 OCC2002 O ------------------------------------------------ AAVSO Variable star entry Variable identifier Type Max Min Ph Epoch Period khi 2 Ori ACYG 4.68 4.72 Hp2448502.0800 2.8682 ------------------------------------------------------------------------------ Results of Observer Scan UT Site Long. Lat. Dist. h m s Angeli 25.7 68.9 172km 15 29 23.6 Enontekiö 23.6 68.4 174km 15 27 28.7 Inari 27.0 68.9 141km 15 30 39.5 Ivalo 27.5 68.7 108km 15 31 7.5 Kaaresuvanto 22.5 68.5 206km 15 26 22.8 Kalajoki 23.9 64.3 207km 15 27 46.1 Karigasniemi 25.8 69.4 209km 15 29 33.8 Kemijärvi 27.4 66.7 68km 15 31 2.1 Kihlanki 23.6 67.6 107km 15 27 24.5 Kittilä 24.9 67.7 80km 15 28 40.7 Kokkola 23.1 63.8 224km 15 26 59.9 Kolari 23.8 67.3 79km 15 27 37.6 Kuusamo 29.2 66.0 184km 15 32 37.7 Meltaus 25.4 66.9 2km 15 29 6.7 Muonio 23.7 68.0 136km 15 27 30.8 Näätämö 29.1 69.7 163km 15 32 33.0 Nellim 28.3 68.8 107km 15 31 49.5 Nunnanen 24.5 68.4 154km 15 28 18.2 Nuorgam 27.9 70.1 224km 15 31 26.3 Oulainen 24.8 64.3 231km 15 28 35.4 Oulu Puolivälikangas 25.5 65.0 176km 15 29 13.7 Pello 24.0 66.8 25km 15 27 47.7 Posio 28.2 66.1 144km 15 31 42.0 Pudasjärvi 27.0 65.4 185km 15 30 37.2 Puolanka 27.7 64.9 252km 15 31 15.0 Raahe 24.5 64.7 181km 15 28 16.8 Ranua 26.5 65.9 118km 15 30 10.7 Rovaniemi 25.7 66.5 46km 15 29 27.2 Salla 28.7 66.8 88km 15 32 9.0 Savukoski 28.2 67.3 32km 15 31 42.2 Sevettijärvi 28.6 69.5 160km 15 32 5.4 Skellfteå 20.9 64.8 74km 15 24 51.8 Skiippagurra 28.2 70.2 225km 15 31 45.1 Sodankylä 26.6 67.4 17km 15 30 15.5 Taivalkoski 28.3 65.6 198km 15 31 46.6 Tervola 24.8 66.1 60km 15 28 35.1 Tornio 24.1 65.8 63km 15 27 57.8 Tulppio 29.2 67.8 12km 15 32 38.6 Umeå 20.3 63.8 139km 15 24 13.6 Utsjoki Ailigas 27.1 69.9 225km 15 30 41.5 Uusikaarlepyy 22.5 63.5 235km 15 26 25.2 Vaasa Sundom 21.6 63.0 253km 15 25 30.3 Vuotso 27.1 68.1 67km 15 30 44.6 Ylitornio 23.7 66.3 8km 15 27 30.9