Grazing Occultation of 1544 M2 Magnitude 5.4 [Red = 4.5] v R1544 = 46 Leonis Date: 2022 Oct 21 0h 21m, to 2022 Oct 21 0h 25m 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 11 45 0 59 34 39.1 0 21 10 1 64 40.61 19.1 357.87 5.94N 12 0 0 59 38 34.0 0 21 10 2 65 36.88 19.1 357.89 5.92N 12 15 0 59 42 27.4 0 21 10 2 65 33.78 19.1 357.91 5.90N 12 30 0 59 46 19.4 0 21 10 2 65 31.17 19.2 357.93 5.88N 12 45 0 59 50 10.0 0 21 10 2 65 28.94 19.2 357.95 5.86N 13 0 0 59 53 59.2 0 21 10 2 65 27.01 19.2 357.97 5.84N 13 15 0 59 57 47.0 0 21 11 2 66 25.32 19.2 357.99 5.81N 13 30 0 60 1 33.4 0 21 11 2 66 23.84 19.2 358.01 5.79N 13 45 0 60 5 18.3 0 21 11 3 66 22.52 19.3 358.03 5.77N 14 0 0 60 9 2.0 0 21 12 3 66 21.34 19.3 358.05 5.75N 14 15 0 60 12 44.2 0 21 12 3 66 20.28 19.3 358.08 5.73N 14 30 0 60 16 25.1 0 21 12 3 67 19.33 19.3 358.10 5.71N 14 45 0 60 20 4.6 0 21 13 3 67 18.46 19.3 358.12 5.69N 15 0 0 60 23 42.7 0 21 13 3 67 17.66 19.4 358.14 5.67N 15 15 0 60 27 19.5 0 21 14 3 67 16.94 19.4 358.16 5.65N 15 30 0 60 30 54.7 0 21 15 4 68 16.27 19.4 358.18 5.63N 15 45 0 60 34 28.8 0 21 15 4 68 15.65 19.4 358.20 5.61N 16 0 0 60 38 1.6 0 21 16 4 68 15.08 19.4 358.22 5.58N 16 15 0 60 41 33.0 0 21 17 4 68 14.56 19.5 358.24 5.56N 16 30 0 60 45 3.1 0 21 18 4 68 14.06 19.5 358.26 5.54N 16 45 0 60 48 31.9 0 21 18 4 69 13.60 19.5 358.29 5.52N 17 0 0 60 51 59.3 0 21 19 4 69 13.18 19.5 358.31 5.50N 17 15 0 60 55 25.4 0 21 20 4 69 12.77 19.6 358.33 5.48N 17 30 0 60 58 50.2 0 21 21 5 69 12.40 19.6 358.35 5.46N 17 45 0 61 2 13.6 0 21 22 5 70 12.04 19.6 358.37 5.43N 18 0 0 61 5 35.7 0 21 23 5 70 11.71 19.6 358.39 5.41N 18 15 0 61 8 56.5 0 21 24 5 70 11.39 19.6 358.41 5.39N 18 30 0 61 12 15.9 0 21 25 5 70 11.09 19.7 358.44 5.37N 18 45 0 61 15 34.0 0 21 27 5 70 10.81 19.7 358.46 5.35N 19 0 0 61 18 50.8 0 21 28 5 71 10.54 19.7 358.48 5.33N 19 15 0 61 22 6.3 0 21 29 6 71 10.28 19.7 358.50 5.30N 19 30 0 61 25 20.5 0 21 30 6 71 10.04 19.7 358.52 5.28N 19 45 0 61 28 33.3 0 21 32 6 71 9.81 19.8 358.55 5.26N 20 0 0 61 31 44.9 0 21 33 6 72 9.59 19.8 358.57 5.24N 20 15 0 61 34 55.1 0 21 34 6 72 9.38 19.8 358.59 5.22N 20 30 0 61 38 4.0 0 21 36 6 72 9.18 19.8 358.61 5.20N 20 45 0 61 41 11.6 0 21 37 6 72 8.98 19.9 358.63 5.17N 21 0 0 61 44 17.9 0 21 39 6 72 8.80 19.9 358.65 5.15N 21 15 0 61 47 22.9 0 21 40 7 73 8.62 19.9 358.68 5.13N 21 30 0 61 50 26.6 0 21 42 7 73 8.45 19.9 358.70 5.11N 21 45 0 61 53 29.0 0 21 44 7 73 8.29 19.9 358.72 5.09N 22 0 0 61 56 30.0 0 21 45 7 73 8.14 20.0 358.74 5.06N 22 15 0 61 59 29.8 0 21 47 7 74 7.99 20.0 358.76 5.04N 22 30 0 62 2 28.3 0 21 49 7 74 7.84 20.0 358.79 5.02N 22 45 0 62 5 25.5 0 21 50 7 74 7.70 20.0 358.81 5.00N 23 0 0 62 8 21.4 0 21 52 8 74 7.57 20.1 358.83 4.97N 23 15 0 62 11 16.0 0 21 54 8 75 7.44 20.1 358.85 4.95N 23 30 0 62 14 9.3 0 21 56 8 75 7.31 20.1 358.88 4.93N 23 45 0 62 17 1.3 0 21 58 8 75 7.19 20.1 358.90 4.91N 24 0 0 62 19 52.0 0 22 0 8 75 7.08 20.1 358.92 4.89N 24 15 0 62 22 41.5 0 22 2 8 75 6.97 20.2 358.94 4.86N 24 30 0 62 25 29.6 0 22 4 8 76 6.86 20.2 358.96 4.84N 24 45 0 62 28 16.5 0 22 6 8 76 6.75 20.2 358.99 4.82N 25 0 0 62 31 2.1 0 22 8 9 76 6.65 20.2 359.01 4.80N 25 15 0 62 33 46.4 0 22 10 9 76 6.55 20.3 359.03 4.77N 25 30 0 62 36 29.4 0 22 12 9 77 6.45 20.3 359.05 4.75N 25 45 0 62 39 11.2 0 22 14 9 77 6.36 20.3 359.08 4.73N 26 0 0 62 41 51.7 0 22 17 9 77 6.27 20.3 359.10 4.71N 26 15 0 62 44 30.9 0 22 19 9 77 6.18 20.3 359.12 4.68N 26 30 0 62 47 8.8 0 22 21 9 78 6.10 20.4 359.14 4.66N 26 45 0 62 49 45.5 0 22 23 9 78 6.02 20.4 359.17 4.64N 27 0 0 62 52 20.9 0 22 26 10 78 5.94 20.4 359.19 4.62N 27 15 0 62 54 55.0 0 22 28 10 78 5.86 20.4 359.21 4.59N 27 30 0 62 57 27.9 0 22 31 10 78 5.78 20.5 359.24 4.57N 27 45 0 62 59 59.5 0 22 33 10 79 5.71 20.5 359.26 4.55N 28 0 0 63 2 29.8 0 22 36 10 79 5.64 20.5 359.28 4.52N 28 15 0 63 4 58.9 0 22 38 10 79 5.57 20.5 359.30 4.50N 28 30 0 63 7 26.8 0 22 41 10 79 5.50 20.5 359.33 4.48N 28 45 0 63 9 53.3 0 22 43 10 80 5.43 20.6 359.35 4.46N 29 0 0 63 12 18.7 0 22 46 11 80 5.37 20.6 359.37 4.43N 29 15 0 63 14 42.7 0 22 48 11 80 5.30 20.6 359.40 4.41N 29 30 0 63 17 5.6 0 22 51 11 80 5.24 20.6 359.42 4.39N 29 45 0 63 19 27.2 0 22 54 11 81 5.18 20.7 359.44 4.36N 30 0 0 63 21 47.5 0 22 56 11 81 5.12 20.7 359.46 4.34N 30 15 0 63 24 6.6 0 22 59 11 81 5.07 20.7 359.49 4.32N 30 30 0 63 26 24.4 0 23 2 11 81 5.01 20.7 359.51 4.29N 30 45 0 63 28 41.1 0 23 5 11 82 4.95 20.8 359.53 4.27N 31 0 0 63 30 56.4 0 23 8 12 82 4.90 20.8 359.56 4.25N 31 15 0 63 33 10.6 0 23 11 12 82 4.85 20.8 359.58 4.23N 31 30 0 63 35 23.5 0 23 13 12 82 4.80 20.8 359.60 4.20N 31 45 0 63 37 35.1 0 23 16 12 82 4.75 20.8 359.63 4.18N 32 0 0 63 39 45.6 0 23 19 12 83 4.70 20.9 359.65 4.16N 32 15 0 63 41 54.8 0 23 22 12 83 4.65 20.9 359.67 4.13N 32 30 0 63 44 2.8 0 23 25 12 83 4.60 20.9 359.69 4.11N 32 45 0 63 46 9.5 0 23 28 12 83 4.56 20.9 359.72 4.09N 33 0 0 63 48 15.1 0 23 32 12 84 4.51 21.0 359.74 4.06N 33 15 0 63 50 19.4 0 23 35 13 84 4.47 21.0 359.76 4.04N 33 30 0 63 52 22.5 0 23 38 13 84 4.42 21.0 359.79 4.02N 33 45 0 63 54 24.3 0 23 41 13 84 4.38 21.0 359.81 3.99N 34 0 0 63 56 25.0 0 23 44 13 85 4.34 21.1 359.83 3.97N 34 15 0 63 58 24.4 0 23 47 13 85 4.30 21.1 359.86 3.95N 34 30 0 64 0 22.7 0 23 51 13 85 4.26 21.1 359.88 3.92N 34 45 0 64 2 19.7 0 23 54 13 85 4.22 21.1 359.91 3.90N 35 0 0 64 4 15.5 0 23 57 13 86 4.18 21.2 359.93 3.88N 35 15 0 64 6 10.1 0 24 1 14 86 4.15 21.2 359.95 3.85N 35 30 0 64 8 3.5 0 24 4 14 86 4.11 21.2 359.98 3.83N 35 45 0 64 9 55.7 0 24 7 14 86 4.07 21.2 360.00 3.81N 36 0 0 64 11 46.7 0 24 11 14 87 4.04 21.2 0.02 3.78N 36 15 0 64 13 36.5 0 24 14 14 87 4.00 21.3 0.05 3.76N 36 30 0 64 15 25.1 0 24 18 14 87 3.97 21.3 0.07 3.73N 36 45 0 64 17 12.5 0 24 21 14 87 3.93 21.3 0.09 3.71N 37 0 0 64 18 58.7 0 24 25 14 88 3.90 21.3 0.12 3.69N 37 15 0 64 20 43.7 0 24 28 14 88 3.87 21.4 0.14 3.66N 37 30 0 64 22 27.5 0 24 32 15 88 3.84 21.4 0.17 3.64N 37 45 0 64 24 10.1 0 24 35 15 88 3.80 21.4 0.19 3.61N 38 0 0 64 25 51.6 0 24 39 15 89 3.77 21.4 0.21 3.59N 38 15 0 64 27 32.7 0 24 43 15 89 3.74 21.5 0.24 3.57N 38 30 0 64 29 11.7 0 24 46 15 89 3.71 21.5 0.26 3.54N 38 45 0 64 30 49.6 0 24 50 15 89 3.68 21.5 0.29 3.52N 39 0 0 64 32 26.3 0 24 54 15 89 3.65 21.5 0.31 3.49N 39 15 0 64 34 1.8 0 24 58 15 90 3.63 21.6 0.33 3.47N 39 30 0 64 35 36.1 0 25 1 16 90 3.60 21.6 0.36 3.45N 39 45 0 64 37 9.3 0 25 5 16 90 3.57 21.6 0.38 3.42N 40 0 0 64 38 41.3 0 25 9 16 90 3.54 21.6 0.41 3.40N 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 9 meters [CHARM/CADARS, 16 measures] 1544 is variable: 1544 = ES Leo, 5.46 to 5.56, Hp, Type SRB: Librations Long -3.31 Lat -5.77 P +359.45 D +6.08 Illumination of moon 20%- Elongation of Moon 53 Vertical Profile Scale approx. 2.37 km/arcsec at mean distance of moon Horizontal Scale Factor 1.97 deg/min At longitude 26.00: Limiting Magnitudes for various telescope apertures (in cm) CA\Tdia 5 10 15 20 25 30 35 0.7 4.4 5.8 6.4 6.8 7.1 7.3 7.4 2.7 4.5 5.8 6.5 6.9 7.2 7.4 7.5 4.7 4.5 5.9 6.6 7.0 7.2 7.4 7.6 6.7 4.6 5.9 6.6 7.0 7.3 7.5 7.6 8.7 5.5 6.9 7.7 8.2 8.5 8.8 8.9 ------------------------------------------------------------------------------ Results of Observer Scan UT Site Long. Lat. Dist. h m s Ähtäri 24.1 62.6 22km 0 22 0.7 Forssa 23.6 60.8 151km 0 21 57.1 Gävle Sweden 17.1 60.7 22km 0 21 19.9 Haapajärvi 25.3 63.7 121km 0 22 10.7 Hämeenlinna Vegan tähtitorni 24.4 61.0 147km 0 22 3.4 Hartola 26.0 61.6 117km 0 22 16.9 Helsinki Kaivopuisto 25.0 60.2 246km 0 22 7.7 Iisalmi 27.2 63.5 67km 0 22 27.7 Ilomantsi 30.9 62.7 88km 0 23 6.8 Imatra 28.8 61.2 205km 0 22 43.5 Jämsä 25.2 61.9 70km 0 22 9.6 Joensuu Jakokoski 30.0 62.7 67km 0 22 56.5 Jönköping Sweden 14.0 57.8 241km 0 21 11.8 Juorkuna, Utajärvi 27.0 65.0 215km 0 22 25.8 Jyväskylä Rihlaperä 25.7 62.2 43km 0 22 14.1 Kajaani Lehtikangas 27.7 64.2 126km 0 22 33.1 Kalajoki 23.9 64.3 197km 0 21 59.5 Kangasala 24.0 61.4 96km 0 22 0.0 Karstad Sweden 13.5 59.4 63km 0 21 11.0 Kaskinen 21.2 62.4 61km 0 21 40.4 Kaustinen 23.7 63.6 131km 0 21 57.6 Kemiö 22.8 60.1 202km 0 21 50.8 Kokkola 23.1 63.8 169km 0 21 53.3 Kouvola 26.7 60.9 203km 0 22 22.8 Kuhmo 29.5 64.1 88km 0 22 51.3 Kuopio Huuhanmäki 27.6 62.9 10km 0 22 32.2 Lahti Pirttiharju 25.6 61.0 171km 0 22 13.1 Laitila 21.7 60.9 103km 0 21 43.3 Lappeenranta Kirkko Kirkkok 11 28.2 61.1 212km 0 22 37.5 Lapua 23.0 63.0 84km 0 21 52.4 Loimaa 23.1 60.8 135km 0 21 52.8 Maarianhamina Kirkko Storag 12 19.9 60.1 145km 0 21 32.8 Mänttä 24.6 62.0 44km 0 22 4.9 Mäntyharju 26.9 61.4 150km 0 22 24.9 Merikarvia 21.5 61.9 2km 0 21 42.1 Mikkeli Kiiskinmäki 27.2 61.7 129km 0 22 28.2 Mora Sweden 14.5 61.0 72km 0 21 12.6 Nilsiä 28.1 63.2 15km 0 22 36.5 Nurmes 29.1 63.5 33km 0 22 47.4 Oslo Norway 10.8 59.9 59km 0 21 10.2 Oulainen 24.8 64.3 183km 0 22 6.5 Oulu Puolivälikangas 25.5 65.0 249km 0 22 12.2 Parkano 23.0 62.0 14km 0 21 52.5 Pori 21.8 61.5 42km 0 21 44.1 Puolanka 27.7 64.9 194km 0 22 32.4 Pyhäjärvi 26.0 63.7 102km 0 22 16.5 Rautalampi 26.7 62.6 26km 0 22 23.1 Salo 23.1 60.4 185km 0 21 53.4 Savonlinna 28.9 61.9 139km 0 22 44.6 Seinäjoki 22.8 62.8 69km 0 21 51.3 Siilinjärvi 27.7 63.1 11km 0 22 32.5 Stockholm Sweden 18.1 59.3 180km 0 21 23.6 Suomussalmi 28.9 64.9 176km 0 22 44.9 Tampere Kauppi 23.8 61.5 81km 0 21 58.3 Turku Iso-Heikkilä 22.2 60.5 159km 0 21 46.9 Ulvila Vesitorni 21.9 61.4 51km 0 21 44.9 Uusikaarlepyy 22.5 63.5 150km 0 21 49.0 Vaala Kirkko Järvikyläntie 3 26.8 64.6 177km 0 22 24.4 Vaasa Sundom 21.6 63.0 120km 0 21 42.6 Varkaus 27.9 62.3 74km 0 22 34.5 Vihti 24.3 60.4 210km 0 22 2.5 Viitasaari 25.9 63.1 41km 0 22 15.5 Vimpeli 23.8 63.2 89km 0 21 58.6 Virrat 23.8 62.2 9km 0 21 58.3 Virsbo Gammelby Sweden 16.1 59.9 79km 0 21 16.5