Grazing Occultation of 667cK2 Magnitude 5.0 [Red = 4.4] R667 = 75 Tauri Date: 2015 Sep 05 1h 58m, to 2015 Sep 05 2h 14m 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 63 15 26 1 58 4 -11 37 135 1.32 349.6 359.03 1.99N 18 30 0 63 23 17 1 58 35 -11 37 136 1.32 349.6 359.07 1.95N 19 0 0 63 31 1 1 59 6 -11 37 137 1.31 349.6 359.11 1.92N 19 30 0 63 38 39 1 59 37 -10 37 137 1.31 349.7 359.14 1.88N 20 0 0 63 46 10 2 0 8 -10 37 138 1.31 349.7 359.18 1.84N 20 30 0 63 53 35 2 0 39 -10 38 139 1.30 349.7 359.22 1.80N 21 0 0 64 0 54 2 1 10 -9 38 140 1.30 349.8 359.26 1.76N 21 30 0 64 8 6 2 1 40 -9 38 141 1.29 349.8 359.30 1.73N 22 0 0 64 15 13 2 2 10 -9 38 141 1.29 349.9 359.34 1.69N 22 30 0 64 22 13 2 2 40 -8 38 142 1.29 349.9 359.38 1.65N 23 0 0 64 29 7 2 3 10 -8 38 143 1.28 349.9 359.41 1.61N 23 30 0 64 35 54 2 3 40 -8 38 144 1.28 350.0 359.45 1.57N 24 0 0 64 42 36 2 4 10 -8 38 144 1.28 350.0 359.49 1.53N 24 30 0 64 49 11 2 4 39 -7 38 145 1.27 350.1 359.53 1.49N 25 0 0 64 55 41 2 5 8 -7 38 146 1.27 350.1 359.57 1.46N 25 30 0 65 2 4 2 5 38 -7 38 147 1.27 350.1 359.61 1.42N 26 0 0 65 8 21 2 6 7 -7 38 148 1.26 350.2 359.65 1.38N 26 30 0 65 14 33 2 6 35 -6 38 148 1.26 350.2 359.69 1.34N 27 0 0 65 20 38 2 7 4 -6 38 149 1.26 350.3 359.73 1.30N 27 30 0 65 26 38 2 7 33 -6 38 150 1.26 350.3 359.76 1.26N 28 0 0 65 32 32 2 8 1 -5 39 151 1.26 350.3 359.80 1.22N 28 30 0 65 38 20 2 8 29 -5 39 151 1.25 350.4 359.84 1.18N 29 0 0 65 44 2 2 8 57 -5 39 152 1.25 350.4 359.88 1.14N 29 30 0 65 49 39 2 9 25 -5 39 153 1.25 350.4 359.92 1.10N 30 0 0 65 55 10 2 9 53 -4 39 154 1.25 350.5 359.96 1.07N 30 30 0 66 0 35 2 10 20 -4 39 155 1.25 350.5 360.00 1.03N 31 0 0 66 5 55 2 10 48 -4 39 155 1.25 350.6 0.04 0.99N 31 30 0 66 11 9 2 11 15 -4 39 156 1.25 350.6 0.08 0.95N 32 0 0 66 16 18 2 11 42 -3 39 157 1.25 350.6 0.11 0.91N 32 30 0 66 21 21 2 12 9 -3 39 158 1.24 350.7 0.15 0.87N 33 0 0 66 26 19 2 12 36 -3 39 158 1.24 350.7 0.19 0.83N 33 30 0 66 31 11 2 13 2 -3 39 159 1.24 350.8 0.23 0.79N 34 0 0 66 35 58 2 13 29 -2 39 160 1.24 350.8 0.27 0.76N 34 30 0 66 40 40 2 13 55 -2 39 161 1.24 350.8 0.31 0.72N 35 0 0 66 45 16 2 14 21 -2 39 162 1.24 350.9 0.35 0.68N Path coordinates are referred to WGS84 (as used by GPS), with the nominal site altitude being referenced to Mean Sea Level. Projected diameter of star 6 meters [CHARM/CADARS, 5 measures] 667 is double: AB 5.0 30.0 (RCH 2) Graze path of B 0.00 km south, 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 +7.21 Lat +7.01 P +360.54 D -6.79 Illumination of moon 53%- Elongation of Moon 94 Vertical Profile Scale 2.96 km/arcsec at mean distance of moon Horizontal Scale Factor 1.70 deg/min At longitude 26.50: Limiting Magnitudes for various telescope apertures (in cm) CA\Tdia 5 10 15 20 25 30 35 -2.7 3.0 4.4 5.2 5.6 5.9 6.1 6.3 -0.7 3.0 4.4 5.2 5.6 5.9 6.1 6.3 1.3 4.8 6.3 7.0 7.5 7.9 8.1 8.3 3.3 4.9 6.3 7.1 7.5 7.9 8.1 8.3 5.3 5.7 7.1 7.9 8.4 8.7 9.0 9.2 ------------------------------------------------------------------------------ Double star catalogue details WDS entries RA Dec Name Y1 Y2 N PA PA Sep Sep M1 M2 04284+1622RCH 2 1998 1998 2 30 30 0.0 0.0 4.97 K2III +008+018 +16 605 N 042826.37+162134.7 ------------------------------------------------ Interferometric catalogue entries 042826.37+162134.7 75 Tau RCH 2 HD 28292 HIP 20877 04284+1622 N Date PA Sep M1 M2 1978.2019 V . . . . . . . . . 1 Mrb1978 O 1978.3603 V 61.3 . . . . . . . . 1 Rad1982b O 1978.7249 V295.8 . . . . . . . . 1 Rad1980 O 1978.9497 V109.9 . . . . . . . . 1 Rad1980 O 1979.1736 V238.3 . 0.024 0.002 . . 2.5 0.3 487 17 . 1 Fek1980 O 1980.0713 V 39.1 . . . . . . . . 1 Evn1981 O 1980.721 . . < 0.030 . . . . . 470 3.8 1 Hrt1984 Sc 1983.0505 . . < 0.030 . . . . . 549 22 3.8 1 Msn1996b Sc 1983.7167 . . < 0.030 . . . . . 549 22 3.8 1 Msn1996b Sc 1985.8411 . . < 0.030 . . . . . 549 22 3.8 1 Msn1996b Sc 1986.8869 . . < 0.030 . . . . . 549 22 3.8 1 Msn1996b Sc 1991.25 . . < 0.1 . 5.13 . . . 511 222 0.3 1 HIP1997e Hh 1991.8997 . . < 0.030 . . . . . 549 22 3.8 1 Msn1996b Sc 1998.846 V105. . 0.0072 0.0020 . . 3.62 0.26 2200 0.7 1 Rch2002 O 1998.921 30. 5. 0.0282 0.0032 . . . . 2200 . 1 Rch2002 O 1998.996 V 55. . 0.0255 0.0025 . . 4.75 0.27 2200 0.4 1 Rch2002 O ------------------------------------------------------------------------------ Results of Observer Scan UT Site Long. Lat. Dist. h m s Ähtäri 24.1 62.6 218km 2 4 15 Kajaani Lehtikangas 27.7 64.2 129km 2 7 46 Kemijärvi 27.4 66.7 128km 2 7 29 Kokkola 23.1 63.8 68km 2 3 18 Kuhmo 29.5 64.1 174km 2 9 26 Kuusamo 29.2 66.0 19km 2 9 8 Meltaus 25.4 66.9 187km 2 5 30 Merikarvia 21.5 61.9 226km 2 1 40 Nilsiä 28.1 63.2 241km 2 8 6 Nurmes 29.1 63.5 228km 2 9 5 Oulu Puolivälikangas 25.5 65.0 0km 2 5 37 Pello 24.0 66.8 201km 2 4 8 Posio 28.2 66.1 54km 2 8 10 Pudasjärvi 27.0 65.4 2km 2 7 3 Puolanka 27.7 64.9 62km 2 7 43 Raahe 24.5 64.7 13km 2 4 38 Ranua 26.5 65.9 68km 2 6 36 Rovaniemi 25.7 66.5 139km 2 5 51 Salla 28.7 66.8 116km 2 8 38 Sodankylä 26.6 67.4 212km 2 6 41 Tervola 24.8 66.1 118km 2 4 57 Tornio 24.1 65.8 109km 2 4 18 Tulppio 29.2 67.8 199km 2 9 9 Vaasa Sundom 21.6 63.0 110km 2 1 45 Grazing Occultation of 667cK2 Magnitude 5.0 [Red = 4.4] R667 = 75 Tauri Date: 2015 Sep 05 1h 58m, to 2015 Sep 05 2h 14m 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 63 15 26 1 58 4 -11 37 135 1.32 349.6 359.03 1.99N 18 30 0 63 23 17 1 58 35 -11 37 136 1.32 349.6 359.07 1.95N 19 0 0 63 31 1 1 59 6 -11 37 137 1.31 349.6 359.11 1.92N 19 30 0 63 38 39 1 59 37 -10 37 137 1.31 349.7 359.14 1.88N 20 0 0 63 46 10 2 0 8 -10 37 138 1.31 349.7 359.18 1.84N 20 30 0 63 53 35 2 0 39 -10 38 139 1.30 349.7 359.22 1.80N 21 0 0 64 0 54 2 1 10 -9 38 140 1.30 349.8 359.26 1.76N 21 30 0 64 8 6 2 1 40 -9 38 141 1.29 349.8 359.30 1.73N 22 0 0 64 15 13 2 2 10 -9 38 141 1.29 349.9 359.34 1.69N 22 30 0 64 22 13 2 2 40 -8 38 142 1.29 349.9 359.38 1.65N 23 0 0 64 29 7 2 3 10 -8 38 143 1.28 349.9 359.41 1.61N 23 30 0 64 35 54 2 3 40 -8 38 144 1.28 350.0 359.45 1.57N 24 0 0 64 42 36 2 4 10 -8 38 144 1.28 350.0 359.49 1.53N 24 30 0 64 49 11 2 4 39 -7 38 145 1.27 350.1 359.53 1.49N 25 0 0 64 55 41 2 5 8 -7 38 146 1.27 350.1 359.57 1.46N 25 30 0 65 2 4 2 5 38 -7 38 147 1.27 350.1 359.61 1.42N 26 0 0 65 8 21 2 6 7 -7 38 148 1.26 350.2 359.65 1.38N 26 30 0 65 14 33 2 6 35 -6 38 148 1.26 350.2 359.69 1.34N 27 0 0 65 20 38 2 7 4 -6 38 149 1.26 350.3 359.73 1.30N 27 30 0 65 26 38 2 7 33 -6 38 150 1.26 350.3 359.76 1.26N 28 0 0 65 32 32 2 8 1 -5 39 151 1.26 350.3 359.80 1.22N 28 30 0 65 38 20 2 8 29 -5 39 151 1.25 350.4 359.84 1.18N 29 0 0 65 44 2 2 8 57 -5 39 152 1.25 350.4 359.88 1.14N 29 30 0 65 49 39 2 9 25 -5 39 153 1.25 350.4 359.92 1.10N 30 0 0 65 55 10 2 9 53 -4 39 154 1.25 350.5 359.96 1.07N 30 30 0 66 0 35 2 10 20 -4 39 155 1.25 350.5 360.00 1.03N 31 0 0 66 5 55 2 10 48 -4 39 155 1.25 350.6 0.04 0.99N 31 30 0 66 11 9 2 11 15 -4 39 156 1.25 350.6 0.08 0.95N 32 0 0 66 16 18 2 11 42 -3 39 157 1.25 350.6 0.11 0.91N 32 30 0 66 21 21 2 12 9 -3 39 158 1.24 350.7 0.15 0.87N 33 0 0 66 26 19 2 12 36 -3 39 158 1.24 350.7 0.19 0.83N 33 30 0 66 31 11 2 13 2 -3 39 159 1.24 350.8 0.23 0.79N 34 0 0 66 35 58 2 13 29 -2 39 160 1.24 350.8 0.27 0.76N 34 30 0 66 40 40 2 13 55 -2 39 161 1.24 350.8 0.31 0.72N 35 0 0 66 45 16 2 14 21 -2 39 162 1.24 350.9 0.35 0.68N Path coordinates are referred to WGS84 (as used by GPS), with the nominal site altitude being referenced to Mean Sea Level. Projected diameter of star 6 meters [CHARM/CADARS, 5 measures] 667 is double: AB 5.0 30.0 (RCH 2) Graze path of B 0.00 km south, 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 +7.21 Lat +7.01 P +360.54 D -6.79 Illumination of moon 53%- Elongation of Moon 94 Vertical Profile Scale 2.96 km/arcsec at mean distance of moon Horizontal Scale Factor 1.70 deg/min At longitude 26.50: Limiting Magnitudes for various telescope apertures (in cm) CA\Tdia 5 10 15 20 25 30 35 -2.7 3.0 4.4 5.2 5.6 5.9 6.1 6.3 -0.7 3.0 4.4 5.2 5.6 5.9 6.1 6.3 1.3 4.8 6.3 7.0 7.5 7.9 8.1 8.3 3.3 4.9 6.3 7.1 7.5 7.9 8.1 8.3 5.3 5.7 7.1 7.9 8.4 8.7 9.0 9.2 ------------------------------------------------------------------------------ Double star catalogue details WDS entries RA Dec Name Y1 Y2 N PA PA Sep Sep M1 M2 04284+1622RCH 2 1998 1998 2 30 30 0.0 0.0 4.97 K2III +008+018 +16 605 N 042826.37+162134.7 ------------------------------------------------ Interferometric catalogue entries 042826.37+162134.7 75 Tau RCH 2 HD 28292 HIP 20877 04284+1622 N Date PA Sep M1 M2 1978.2019 V . . . . . . . . . 1 Mrb1978 O 1978.3603 V 61.3 . . . . . . . . 1 Rad1982b O 1978.7249 V295.8 . . . . . . . . 1 Rad1980 O 1978.9497 V109.9 . . . . . . . . 1 Rad1980 O 1979.1736 V238.3 . 0.024 0.002 . . 2.5 0.3 487 17 . 1 Fek1980 O 1980.0713 V 39.1 . . . . . . . . 1 Evn1981 O 1980.721 . . < 0.030 . . . . . 470 3.8 1 Hrt1984 Sc 1983.0505 . . < 0.030 . . . . . 549 22 3.8 1 Msn1996b Sc 1983.7167 . . < 0.030 . . . . . 549 22 3.8 1 Msn1996b Sc 1985.8411 . . < 0.030 . . . . . 549 22 3.8 1 Msn1996b Sc 1986.8869 . . < 0.030 . . . . . 549 22 3.8 1 Msn1996b Sc 1991.25 . . < 0.1 . 5.13 . . . 511 222 0.3 1 HIP1997e Hh 1991.8997 . . < 0.030 . . . . . 549 22 3.8 1 Msn1996b Sc 1998.846 V105. . 0.0072 0.0020 . . 3.62 0.26 2200 0.7 1 Rch2002 O 1998.921 30. 5. 0.0282 0.0032 . . . . 2200 . 1 Rch2002 O 1998.996 V 55. . 0.0255 0.0025 . . 4.75 0.27 2200 0.4 1 Rch2002 O ------------------------------------------------------------------------------ Results of Observer Scan UT Site Long. Lat. Dist. h m s Ähtäri 24.1 62.6 218km 2 4 15 Kajaani Lehtikangas 27.7 64.2 129km 2 7 46 Kemijärvi 27.4 66.7 128km 2 7 29 Kokkola 23.1 63.8 68km 2 3 18 Kuhmo 29.5 64.1 174km 2 9 26 Kuusamo 29.2 66.0 19km 2 9 8 Meltaus 25.4 66.9 187km 2 5 30 Merikarvia 21.5 61.9 226km 2 1 40 Nilsiä 28.1 63.2 241km 2 8 6 Nurmes 29.1 63.5 228km 2 9 5 Oulu Puolivälikangas 25.5 65.0 0km 2 5 37 Pello 24.0 66.8 201km 2 4 8 Posio 28.2 66.1 54km 2 8 10 Pudasjärvi 27.0 65.4 2km 2 7 3 Puolanka 27.7 64.9 62km 2 7 43 Raahe 24.5 64.7 13km 2 4 38 Ranua 26.5 65.9 68km 2 6 36 Rovaniemi 25.7 66.5 139km 2 5 51 Salla 28.7 66.8 116km 2 8 38 Sodankylä 26.6 67.4 212km 2 6 41 Tervola 24.8 66.1 118km 2 4 57 Tornio 24.1 65.8 109km 2 4 18 Tulppio 29.2 67.8 199km 2 9 9 Vaasa Sundom 21.6 63.0 110km 2 1 45