Grazing Occultation of 1441cA7 Magnitude 6.4 [Red = 6.3] R1441 = 19 Leonis Date: 2016 Nov 20 23h 52m, to 2016 Nov 20 24h 0m 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 67 53 17.8 23 52 4 17 101 3.32 13.4 352.36 6.25N 15 30 0 67 55 29.3 23 52 13 17 101 3.28 13.4 352.38 6.23N 16 0 0 67 57 37.5 23 52 23 17 102 3.25 13.4 352.41 6.20N 16 30 0 67 59 41.5 23 52 32 17 102 3.21 13.5 352.44 6.17N 17 0 0 68 1 42.7 23 52 42 18 103 3.17 13.5 352.47 6.14N 17 30 0 68 3 40.4 23 52 52 18 103 3.13 13.5 352.50 6.11N 18 0 0 68 5 34.6 23 53 2 18 104 3.10 13.5 352.53 6.08N 18 30 0 68 7 25.4 23 53 12 18 104 3.06 13.6 352.56 6.05N 19 0 0 68 9 12.7 23 53 22 18 105 3.03 13.6 352.59 6.02N 19 30 0 68 10 56.7 23 53 32 18 106 3.00 13.6 352.62 5.99N 20 0 0 68 12 37.2 23 53 42 19 106 2.96 13.7 352.65 5.96N 20 30 0 68 14 14.3 23 53 52 19 107 2.93 13.7 352.68 5.93N 21 0 0 68 15 47.9 23 54 3 19 107 2.90 13.7 352.71 5.90N 21 30 0 68 17 18.1 23 54 13 19 108 2.87 13.8 352.74 5.86N 22 0 0 68 18 44.9 23 54 24 19 108 2.84 13.8 352.77 5.83N 22 30 0 68 20 8.2 23 54 35 20 109 2.81 13.8 352.80 5.80N 23 0 0 68 21 28.1 23 54 46 20 109 2.78 13.9 352.84 5.77N 23 30 0 68 22 44.6 23 54 57 20 110 2.76 13.9 352.87 5.74N 24 0 0 68 23 57.7 23 55 8 20 110 2.73 13.9 352.90 5.71N 24 30 0 68 25 7.3 23 55 19 20 111 2.70 13.9 352.93 5.68N 25 0 0 68 26 13.4 23 55 30 20 111 2.68 14.0 352.96 5.65N 25 30 0 68 27 16.2 23 55 41 21 112 2.65 14.0 352.99 5.62N 26 0 0 68 28 15.5 23 55 52 21 112 2.63 14.0 353.02 5.59N 26 30 0 68 29 11.4 23 56 4 21 113 2.60 14.1 353.05 5.55N 27 0 0 68 30 3.8 23 56 16 21 114 2.58 14.1 353.08 5.52N 27 30 0 68 30 52.8 23 56 27 21 114 2.55 14.1 353.12 5.49N 28 0 0 68 31 38.4 23 56 39 22 115 2.53 14.2 353.15 5.46N 28 30 0 68 32 20.5 23 56 51 22 115 2.51 14.2 353.18 5.43N 29 0 0 68 32 59.1 23 57 3 22 116 2.48 14.2 353.21 5.40N 29 30 0 68 33 34.3 23 57 15 22 116 2.46 14.3 353.24 5.36N 30 0 0 68 34 6.1 23 57 27 22 117 2.44 14.3 353.28 5.33N 30 30 0 68 34 34.4 23 57 39 22 117 2.42 14.3 353.31 5.30N 31 0 0 68 34 59.2 23 57 52 23 118 2.40 14.4 353.34 5.27N 31 30 0 68 35 20.5 23 58 4 23 119 2.38 14.4 353.37 5.23N 32 0 0 68 35 38.4 23 58 16 23 119 2.36 14.4 353.41 5.20N 32 30 0 68 35 52.8 23 58 29 23 120 2.34 14.5 353.44 5.17N 33 0 0 68 36 3.7 23 58 42 23 120 2.32 14.5 353.47 5.14N 33 30 0 68 36 11.0 23 58 55 24 121 2.30 14.5 353.50 5.10N 34 0 0 68 36 14.9 23 59 8 24 121 2.28 14.6 353.54 5.07N 34 30 0 68 36 15.3 23 59 21 24 122 2.26 14.6 353.57 5.04N 35 0 0 68 36 12.2 23 59 34 24 122 2.24 14.6 353.60 5.00N 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. 1441 is double: AB 6.4 6.9 0.040" 166.9 (MCA 34) Graze path of B 0.10 km north, and 0.0 secs later compared to A C A S S I N I R E G I O N G R A Z E Librations Long +8.59 Lat +2.27 P +353.33 D -3.04 Illumination of moon 53%- Elongation of Moon 94 Vertical Profile Scale approx. 2.89 km/arcsec at mean distance of moon Horizontal Scale Factor 1.83 deg/min At longitude 25.00: Limiting Magnitudes for various telescope apertures (in cm) CA\Tdia 5 10 15 20 25 30 35 1.6 4.5 5.9 6.6 7.1 7.3 7.5 7.6 3.6 4.7 6.1 6.8 7.2 7.5 7.7 7.8 5.6 5.3 6.7 7.5 7.9 8.2 8.4 8.5 7.6 5.3 6.7 7.5 7.9 8.2 8.4 8.6 9.6 5.3 6.8 7.5 7.9 8.2 8.4 8.6 ------------------------------------------------------------------------------ Double star catalogue details WDS entries RA Dec Name Y1 Y2 N PA PA Sep Sep M1 M2 09474+1134MCA 34 1975 2007 44 177 192 0.0 0.1 6.4 6.9 A7V -050+001 +12 2095 NO 094725.99+113405.4 ------------------------------------------------ Interferometric catalogue entries 094725.99+113405.4 HR 3880 MCA 34 HD 84722 HIP 48029 09474+11 Date PA Sep M1 M2 N O 1971.4854 V111. . 0.031 0.005 . . 0.17 0.47 720 166 . 1 Bvr1974 O 1971.4854 V111. . 0.031 0.005 . . 0.21 0.38 480 184 . 1 Bvr1974 O 1975.9596 356.6 0.3 0.046 0.003 . . . . 517 20 3.8 1 McA1977 S 1976.0389 358.9 1.7 0.050 0.003 . . . . 552 20 3.8 1 McA1977 S 1976.8578 11.6 1.0 0.084 0.006 . . . . 552 20 3.8 1 McA1978b S 1976.8605 11.4 1.0 0.083 0.006 . . . . 552 20 3.8 1 McA1978b S 1976.9235 12.4 0.2 0.095 0.002 . . . . 552 20 3.8 1 McA1979a S 1977.0873 14.4 0.2 0.092 0.004 . . . . 552 20 3.8 1 McA1979a S 1977.3331 16.1 . 0.102 . . . . . 552 20 2.1 1 McA1982b S 1977.9147 16.8 . 0.118 . . . . . 552 20 2.1 1 McA1982b S 1978.1467 18.4 0.2 0.126 0.001 . . . . 470 3.8 1 McA1980b S 1978.3106 19.3 . 0.138 . . . . . 470 2.1 1 McA1984b S 1979.0368 23.5 . 0.135 . . . . . 470 3.8 1 McA1982d S 1979.3593 22.5 . 0.140 . . . . . 470 3.8 1 McA1982d S 1980.1538 26.3 . 0.150 . . . . . 470 3.8 1 McA1983 S 1980.1592 26.3 . 0.133 . . . . . 470 3.8 1 McA1983 S 1983.9557 53.0 . 0.063 . . . . . 600 14 6.0 1 Bag1985 S 1983.9571 . . < 0.07 . . . . . 550 3 2.0 1 Bnu1984 S 1983.9584 46.5 . 0.061 . . . . . 600 14 6.0 1 Bag1985 S 1984.0527 48.5 . 0.073 . . . . . 549 22 3.8 1 McA1987b S 1984.0609 45.6 . 0.076 . . . . . 549 22 3.8 1 Msn1996b S 1984.0609 : 46.4 . : 0.065 . . . . . 549 22 3.8 1 Hrt2000a S 1984.3690 58.6 . 0.053 . . . . . 600 14 6.0 1 Bag1985 S 1984.3750 52.0 . 0.065 . . . . . 538 76 3.8 1 Msn1996b S 1984.3778 52.0 . 0.063 . . . . . 549 22 3.8 1 McA1987b S 1984.3832 54.5 . 0.065 . . . . . 549 22 3.8 1 Msn1996b S 1984.8436 68.6 . 0.025 . . . . . 600 14 6.0 1 Bag1987 S 1984.9340 . . < 0.079 . . . . . 750 1.9 1 Bnu1986 S 1985.2460 . . < 0.058 . . . . . 550 1.9 1 Bnu1986 S 1985.2487 . . < 0.074 . . . . . 700 1.9 1 Bnu1986 S 1986.380 187.6 . 0.086 0.008 . . . . 550 1.0 1 Tok1988 I 1987.2638 191.9 . 0.069 . . . . . 549 22 3.8 1 McA1989 S 1988.1678 201.7 . 0.080 . . . . . 549 22 3.6 1 McA1993 S 1988.2521 202.2 . 0.078 . . . . . 549 22 3.8 1 McA1989 S 1989.1559 :207.1 . : 0.070 . . . . . 538 76 1.8 1 McA1997 S 1989.2269 215.2 . 0.056 . . . . . 549 22 3.8 1 McA1990 S 1990.2704 . . < 0.033 . . . . . 467 16 3.8 1 Msn1996b S 1990.2704 . . < 0.036 . . . . . 549 22 3.8 1 Msn1996b S 1990.3354 V243.0 . 0.0126 0.0002 . . 0.67 0.06 460 62 . 1 Mey1995 O 1990.3354 V243.0 . 0.0128 0.0002 . . 0.66 0.07 550 100 . 1 Mey1995 O 1990.3354 V243.0 . 0.0131 0.0003 . . 0.57 0.08 710 100 . 1 Mey1995 O 1990.3483 . . < 0.035 . . . . . 549 22 4.0 1 Msn1996b S 1990.4291 260.7 0.4 0.045 0.003 . . 1.1 . 550 ? 1.0 1 Ism1992 I 1991.25 . . S . . 6.44 . . . 511 222 0.3 1 HIP1997h H 1991.3267 1.3 . 0.057 . . . . . 549 22 3.8 1 Hrt1994 S 1991.9052 8.7 . 0.080 . . . . . 549 22 3.8 1 Hrt1994 S 1992.3068 12.5 . 0.094 . . . . . 549 22 3.8 1 Hrt1994 S 1992.3125 9.7 . 0.091 . . . . . 549 22 3.8 1 Hrt1994 S 1993.0983 13.7 . 0.114 . . . . . 549 22 4.0 1 Msn1996b S 1993.2026 14.4 . 0.123 . . . . . 549 22 3.8 1 Hrt1994 S 1994.2209 21.5 . 0.135 . . . . . 549 22 2.5 1 Hrt1997 S 1994.8708 23.4 . 0.141 . . . . . 549 22 3.6 1 Msn1996b S 1995.3131 24.7 . 0.139 . . . . . 549 22 2.5 1 Hrt1997 S 1995.9244 . . < 0.054 . . . . . 538 76 2.5 1 Msn1996b S 1996.8721 30.0 . 0.124 . . . . . 549 22 2.5 1 Msn1997a S 1997.1260 27.9 . 0.128 . . . . . 549 22 2.5 1 Hrt2000a S 2006.1913 348.8 . 0.038 . . . . . 550 24 4.0 1 Msn2009 S 2007.0074 192.2 . 0.074 . . . 0.56 . 550 40 3.5 1 Hor2010 S ------------------------------------------------------------------------------ Results of Observer Scan UT Site Long. Lat. Dist. h m s Enontekiö 23.6 68.4 0km 23 55 0 Ivalo 27.5 68.7 16km 23 56 28 Kemijärvi 27.4 66.7 199km 23 56 26 Kilpisjärvi 20.8 69.0 88km 23 53 59 Meltaus 25.4 66.9 170km 23 55 38 Muonio 23.7 68.0 48km 23 55 0 Näätämö 29.1 69.7 124km 23 57 5 Nuorgam 27.9 70.1 173km 23 56 36 Pello 24.0 66.8 179km 23 55 7 Rovaniemi 25.7 66.5 218km 23 55 46 Salla 28.7 66.8 190km 23 56 55 Sodankylä 26.6 67.4 119km 23 56 6 Tulppio 29.2 67.8 87km 23 57 8 Utsjoki Ailigas 27.1 69.9 154km 23 56 17