Grazing Occultation of 1397cF9 Magnitude 5.5 [Red = 0.0] R1397 = omega Leonis Date: 2012 Oct 11 3h 27m, to 2012 Oct 11 3h 33m 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 21 0 0 63 10 4 3 27 24 26 124 2.09 20.3 2.00 -5.68N 21 15 0 63 9 1 3 27 31 26 124 2.08 20.3 2.02 -5.70N 21 30 0 63 7 56 3 27 39 26 124 2.07 20.3 2.05 -5.73N 21 45 0 63 6 50 3 27 46 26 125 2.06 20.3 2.07 -5.75N 22 0 0 63 5 43 3 27 54 26 125 2.05 20.4 2.10 -5.78N 22 15 0 63 4 34 3 28 1 -12 26 125 2.04 20.4 2.13 -5.80N 22 30 0 63 3 24 3 28 9 -12 26 125 2.03 20.4 2.15 -5.83N 22 45 0 63 2 14 3 28 17 -12 26 126 2.02 20.4 2.18 -5.86N 23 0 0 63 1 2 3 28 25 -12 26 126 2.01 20.5 2.20 -5.88N 23 15 0 62 59 48 3 28 33 -11 27 126 2.00 20.5 2.23 -5.91N 23 30 0 62 58 34 3 28 41 -11 27 127 1.99 20.5 2.25 -5.93N 23 45 0 62 57 18 3 28 49 -11 27 127 1.98 20.5 2.28 -5.96N 24 0 0 62 56 1 3 28 57 -11 27 127 1.97 20.6 2.30 -5.98N 24 15 0 62 54 43 3 29 5 -11 27 127 1.96 20.6 2.33 -6.01N 24 30 0 62 53 24 3 29 13 -11 27 128 1.95 20.6 2.36 -6.04N 24 45 0 62 52 3 3 29 21 -11 27 128 1.94 20.6 2.38 -6.06N 25 0 0 62 50 41 3 29 29 -11 27 128 1.93 20.7 2.41 -6.09N 25 15 0 62 49 18 3 29 37 -10 28 129 1.92 20.7 2.43 -6.11N 25 30 0 62 47 54 3 29 46 -10 28 129 1.91 20.7 2.46 -6.14N 25 45 0 62 46 28 3 29 54 -10 28 129 1.90 20.7 2.49 -6.17N 26 0 0 62 45 2 3 30 2 -10 28 129 1.89 20.8 2.51 -6.19N 26 15 0 62 43 34 3 30 11 -10 28 130 1.88 20.8 2.54 -6.22N 26 30 0 62 42 4 3 30 19 -10 28 130 1.87 20.8 2.57 -6.25N 26 45 0 62 40 34 3 30 28 -10 28 130 1.86 20.9 2.59 -6.27N 27 0 0 62 39 2 3 30 37 -10 28 131 1.86 20.9 2.62 -6.30N 27 15 0 62 37 28 3 30 45 -9 28 131 1.85 20.9 2.65 -6.33N 27 30 0 62 35 54 3 30 54 -9 29 131 1.84 20.9 2.67 -6.35N 27 45 0 62 34 18 3 31 3 -9 29 131 1.83 21.0 2.70 -6.38N 28 0 0 62 32 41 3 31 12 -9 29 132 1.82 21.0 2.73 -6.41N 28 15 0 62 31 2 3 31 20 -9 29 132 1.81 21.0 2.76 -6.43N 28 30 0 62 29 23 3 31 29 -9 29 132 1.80 21.0 2.78 -6.46N 28 45 0 62 27 42 3 31 38 -9 29 133 1.79 21.1 2.81 -6.49N 29 0 0 62 25 59 3 31 47 -8 29 133 1.78 21.1 2.84 -6.52N 29 15 0 62 24 16 3 31 56 -8 29 133 1.78 21.1 2.87 -6.54N 29 30 0 62 22 30 3 32 6 -8 30 134 1.77 21.2 2.89 -6.57N 29 45 0 62 20 44 3 32 15 -8 30 134 1.76 21.2 2.92 -6.60N 30 0 0 62 18 56 3 32 24 -8 30 134 1.75 21.2 2.95 -6.63N 30 15 0 62 17 7 3 32 33 -8 30 134 1.74 21.2 2.98 -6.65N 30 30 0 62 15 17 3 32 43 -8 30 135 1.73 21.3 3.00 -6.68N 30 45 0 62 13 25 3 32 52 -8 30 135 1.73 21.3 3.03 -6.71N 31 0 0 62 11 32 3 33 2 -7 30 135 1.72 21.3 3.06 -6.74N Path coordinates are referred to WGS84 (as used by GPS), with the nominal site altitude being referenced to Mean Sea Level. 1397 is double: Graze prediction is based on the mean position of AB 5.69 7.28 0.56" 80.9 (STF1356) Graze path of A 0.13 km north, and 0.2 secs earlier compared to prediction Graze path of B 0.57 km south, and 0.8 secs later compared to prediction AB 5.69 7.28 0.56" 80.9 (STF1356) Graze path of B 0.71 km south, and 1.0 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 -6.20 Lat +7.34 P +1.75 D -7.34 Illumination of moon 23%- Elongation of Moon 57 Vertical Profile Scale 2.53 km/arcsec at mean distance of moon Horizontal Scale Factor 1.71 deg/min At longitude 26.00: Limiting Magnitudes for various telescope apertures (in cm) CA\Tdia 5 10 15 20 25 30 35 -10.2 3.3 4.7 5.4 5.8 6.1 6.2 6.4 -8.2 3.3 4.7 5.4 5.8 6.1 6.2 6.4 -6.2 3.3 4.7 5.4 5.8 6.1 6.2 6.4 -4.2 3.3 4.7 5.4 5.8 6.1 6.2 6.4 -2.2 3.3 4.7 5.4 5.8 6.1 6.2 6.4 ------------------------------------------------------------------------------ Double star catalogue details WDS entries RA Dec Name Y1 Y2 N PA PA Sep Sep M1 M2 09283+0903CHE 137 1911 1911 1 127 127 1.0 1.0 !092818. +0903 09285+0903STF1356 1783 2010 655 111 108 0.4 0.8 5.69 7.28 F9IV +050-005 +050-005 +09 2188 NOD 092827.41+090324.4 ------------------------------------------------ Interferometric catalogue entries 092827.41+090324.4 ADS 7390 STF1356 HD 81858 HIP 46454 09285+0903 N O Date PA Sep M1 M2 1978.3106 10.5 . 0.464 . . . . . 470 2.1 1 McA1984b Sch 1979.1870 12.1 . 0.487 . . . . . 470 2.1 1 McA1984b Sch 1979.2644 V279.5 . 0.232 0.008 . . 0.9 1.1 430 192 1 Evn1980 Occ 1980.019 17.0 1. 0.463 0.004 . . . . 3.6 1 Wgt1983 Spe 1980.019 17.0 1. 0.463 0.004 . . 0.51 0.21 500 ? 3.6 1 LWW1983 Sam 1980.1564 18.2 . 0.466 . . . . . 470 3.8 1 McA1983 Sch 1980.8826 20.2 . 0.456 . . . . . 470 2.1 1 McA1984b Sch 1980.8962 20.6 . 0.454 . . . . . 470 2.1 1 McA1984b Sch 1980.901 19.0 0.5 0.477 0.004 . . . . 550 0.6 1 Tok1982a Pgi 1981.369 20.7 0.4 0.445 0.003 . . . . 550 1.0 1 Tok1982b Pgi 1982.9332 28.6 . 0.444 . . . . . 549 22 1.8 1 McA1997 Sch 1984.0527 32.2 . 0.445 . . . . . 549 22 3.8 1 McA1987b Sch 1984.0609 32.1 . 0.446 . . . . . 549 22 3.8 1 McA1987b Sch 1984.3777 33.4 . 0.446 . . . . . 549 22 3.8 1 McA1987b Sch 1986.8840 42.5 . 0.450 . . . . . 549 22 3.8 1 McA1989 Sch 1987.2692 44.7 . 0.450 . . . . . 549 22 3.8 1 McA1989 Sch 1988.1650 47.3 . 0.454 . . . . . 549 22 3.6 1 McA1993 Sch 1988.2522 48.3 . 0.457 . . . . . 467 16 3.8 1 Hrt2000a Sch 1988.2522 47.7 . 0.457 . . . . . 549 22 3.8 1 McA1989 Sch 1989.1616 51.6 . 0.464 . . . . . 549 22 1.8 2 McA1997 Sch 1989.1672 51.5 . 0.457 . . . . . 538 76 1.8 1 McA1997 Sch 1989.2269 52.1 . 0.459 . . . . . 549 22 3.8 1 McA1990 Sch 1991.25 59.2 . 0.471 . 6.01 . 6.66 . 550 0.3 1 HIP1997a Thp 1991.25 . . . . 6.010 0.004 6.655 0.008 511 222 0.3 1 HIP1997f Thp 1991.25 . . . . 5.95 . 6.65 0.01 505 97 0.3 1 Fab2000a Thp 1991.25 . . . . 6.70 . 7.17 0.01 435 70 0.3 1 Fab2000a Thp 1991.262 62.1 . 0.45 P . . . 0.8 . 547 24 0.7 1 WSI1997 Sus 1991.3210 58.8 . 0.471 . . . . . 549 22 3.8 1 Hrt1994 Sch 1991.70 72.4 . 0.59 . 5.69 . 7.28 . 530 100 1.4 1 TYC2002 Tty 1992.207 60.4 . 0.44 G . . . . . 547 24 0.7 1 WSI1997 Sus 1992.248 63.8 . 0.46 G . . . . . 547 24 0.7 1 WSI1997 Sus 1993.0983 65.5 . 0.485 . . . . . 549 22 4.0 1 Hrt2000a Sch 1993.2026 64.8 . 0.481 . . . . . 549 22 3.8 1 Hrt1994 Sch 1993.9232 67.3 . 0.495 . . . . . 549 22 2.5 1 Hrt1997 Sch 1994.192 68.1 . 0.51 F . . . . . 550 24 0.7 1 WSI1999a Sus 1994.192 67.1 . 0.48 G . 5.9 . 6.6 . 550 24 0.7 1 WSI1999a Sus 1994.195 69.2 . 0.48 F . . . . . 560 45 0.7 1 WSI1999a Sus 1994.195 68.7 . 0.52 F . . . . . 560 45 0.7 1 WSI1999a Sus 1994.217 67.5 . 0.49 F . . . . . 550 24 0.7 1 WSI1999a Sus 1994.217 66.9 . 0.49 F . . . . . 550 24 0.7 1 WSI1999a Sus 1994.309 68.3 . 0.49 F . . . . . 550 24 0.7 1 WSI1999a Sus 1994.315 69.3 . 0.52 F . . . . . 550 24 0.7 1 WSI1999a Sus 1994.315 67.4 . 0.49 P . . . . . 550 24 0.7 1 WSI1999a Sus 1995.202 71.3 . 0.49 G . . . . . 550 24 0.7 1 WSI1999a Sus 1995.202 70.7 . 0.49 G . . . . . 550 24 0.7 1 WSI1999a Sus 1995.210 71.4 . 0.49 G . . . . . 550 24 0.7 1 WSI1999a Sus 1995.210 70.7 . 0.49 F . . . . . 550 24 0.7 1 WSI1999a Sus 1995.262 71.8 . 0.50 F . . . . . 550 24 0.7 1 WSI1999a Sus 1995.262 70.3 . 0.48 F . . . . . 550 24 0.7 1 WSI1999a Sus 1995.265 70.6 . 0.49 G . . . . . 550 24 0.7 1 WSI1999a Sus 1995.265 70.5 . 0.49 G . . . . . 550 24 0.7 1 WSI1999a Sus 1995.9244 73.5 . 0.520 . . . . . 549 22 2.5 1 Hrt1997 Sch 1996.1153 73.6 . 0.540 . . . . . 453 38 0.8 1 Hor2006c Spe 1996.1153 255.0 . 0.520 . . . . . 503 40 0.8 1 Hor2006c Spe 1996.1209 76.1 . 0.514 . . . . . 453 38 0.8 1 Hor2006c Spe 1996.1209 75.2 . 0.518 . . . . . 503 40 0.8 1 Hor2006c Spe 1996.1345 74.8 . 0.552 . . . . . 453 38 0.8 1 Hor2006c Spe 1996.1345 73.9 . 0.552 . . . . . 503 40 0.8 1 Hor2006c Spe 1996.285 73.5 . 0.52 G . 5.9 . 6.6 . 550 24 0.7 1 WSI1999b Sus 1997.2326 77.2 . 0.526 . . . . . 501 8 3.5 1 Hor1999 Spe 2001.0200 86.5 . 0.588 . . . . . 540 24 3.8 1 Msn2012a Sus 2001.0770 86.5 . 0.589 . . . . . 540 24 3.8 1 Msn2012a Sus 2001.0825 87.2 . 0.583 . . . . . 540 24 3.8 1 Msn2012a Sus 2001.2272 88.4 . 0.57 . . . . . 550 24 0.7 1 WSI2002 Sus 2003.0077 89. 2. 0.61 0.02 . . 0.67 0.03 900 340 3.6 1 Rbr2005 U 2004.1028 93.2 0.4 0.643 0.005 . . . . 520 24 1.52 1 Doc2007e Spe 2004.205 93.3 0.3 0.627 0.013 . . . . 530 57 1.0 1 Sca2005a Spe 2005.8637 95.5 . 0.663 . . . . . 540 24 3.8 1 Msn2012a Sus 2006.1913 96.0 . 0.667 . . . . . 540 24 3.8 1 Msn2012a Sus 2006.308 96.4 0.3 0.671 0.004 . . . . 644 70 1.0 1 Pru2008 Spe 2007.288 97.8 0.3 0.686 0.005 . . . . 644 70 1.0 1 Pru2009 Spe 2008.241 99.7 0.3 0.689 0.008 . . . . 644 70 1.0 1 Pru2010 Spe 2009.2653 101.3 0.0 0.7265 0.0001 . . 1.0 . 657 5 4.1 1 Tok2010 Spe 2009.2653 101.3 0.0 0.7258 0.0001 . . 1.1 . 551 22 4.1 1 Tok2010 Spe 2009.267 101.8 0.5 0.722 0.008 . . . . 644 70 1.0 1 Sca2011a Spe ------------------------------------------------------------------------------ Results of Observer Scan UT Site Long. Lat. Dist. h m s Ähtäri 24.1 62.6 40km 3 29 0 Artjärvi Tähtikallio 26.2 60.7 217km 3 30 10 Hamina 27.2 60.6 223km 3 30 44 Hartola 26.0 61.6 127km 3 30 3 Imatra 28.8 61.2 133km 3 31 39 Irjanpolku 25.7 61.0 197km 3 29 51 Joensuu Jakokoski 30.0 62.7 44km 3 32 24 Jyväskylä Rihlaperä 25.7 62.2 59km 3 29 53 Kajaani Lehtikangas 27.7 64.2 177km 3 31 2 Kangasala 24.0 61.4 167km 3 28 57 Kuhmo 29.5 64.1 187km 3 32 6 Kuopio Huuhanmäki 27.6 62.9 33km 3 30 59 Lahti Pirttiharju 25.6 61.0 197km 3 29 49 Lahti Tkoulu 25.7 61.0 196km 3 29 51 Lappeenranta 28.2 61.1 159km 3 31 18 Merikarvia 21.5 61.9 140km 3 27 39 Mikkeli Kiiskinmäki 27.2 61.7 102km 3 30 45 Nilsiä 28.1 63.2 72km 3 31 15 Nurmes 29.1 63.5 121km 3 31 53 Oulu Puolivälikangas 25.5 65.0 242km 3 29 45 Pihlajapoukama 25.8 61.0 195km 3 29 57 Pori 21.8 61.5 178km 3 27 48 Puistokatu 25.7 61.0 196km 3 29 51 Puolanka 27.7 64.9 246km 3 31 0 Raahe 24.5 64.7 195km 3 29 12 Rautalampi 26.7 62.6 12km 3 30 26 Savonlinna 28.9 61.9 62km 3 31 43 Tampere Kauppi 23.8 61.5 157km 3 28 50 Ulvila Vesitorni 21.9 61.4 183km 3 27 52 Vaania 25.5 61.1 181km 3 29 47 Vaasa Sundom 21.6 63.0 10km 3 27 41 Varkaus 27.9 62.3 27km 3 31 7