Grazing Occultation of 2680cK0 Magnitude 5.6 [Red = 5.1] Date: 2014 Oct 01 17h 55m, to 2014 Oct 01 18h 6m 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 55 22 11 17 54 45 -12 15 196 3.78 352.8 355.57 -4.02N 15 15 0 55 27 57 17 55 1 15 196 3.82 352.8 355.56 -4.03N 15 30 0 55 33 46 17 55 18 15 197 3.86 352.8 355.54 -4.05N 15 45 0 55 39 38 17 55 34 14 197 3.90 352.8 355.52 -4.06N 16 0 0 55 45 32 17 55 50 14 197 3.95 352.7 355.50 -4.08N 16 15 0 55 51 29 17 56 6 14 197 3.99 352.7 355.49 -4.10N 16 30 0 55 57 28 17 56 22 14 198 4.03 352.7 355.47 -4.12N 16 45 0 56 3 30 17 56 38 14 198 4.08 352.7 355.45 -4.13N 17 0 0 56 9 35 17 56 53 14 198 4.13 352.7 355.44 -4.15N 17 15 0 56 15 41 17 57 8 13 199 4.18 352.7 355.42 -4.16N 17 30 0 56 21 51 17 57 23 13 199 4.23 352.6 355.41 -4.18N 17 45 0 56 28 2 17 57 38 13 199 4.28 352.6 355.39 -4.19N 18 0 0 56 34 16 17 57 52 13 200 4.33 352.6 355.38 -4.20N 18 15 0 56 40 32 17 58 7 13 200 4.38 352.6 355.37 -4.22N 18 30 0 56 46 51 17 58 21 13 200 4.44 352.6 355.35 -4.23N 18 45 0 56 53 11 17 58 35 13 200 4.50 352.6 355.34 -4.24N 19 0 0 56 59 34 17 58 48 12 201 4.56 352.6 355.33 -4.25N 19 15 0 57 5 59 17 59 2 12 201 4.62 352.5 355.32 -4.27N 19 30 0 57 12 26 17 59 15 12 201 4.68 352.5 355.31 -4.28N 19 45 0 57 18 55 17 59 28 12 202 4.75 352.5 355.30 -4.29N 20 0 0 57 25 26 17 59 40 12 202 4.82 352.5 355.29 -4.30N 20 15 0 57 31 59 17 59 53 12 202 4.89 352.5 355.28 -4.31N 20 30 0 57 38 34 18 0 5 11 202 4.96 352.5 355.27 -4.32N 20 45 0 57 45 11 18 0 17 11 203 5.03 352.5 355.26 -4.33N 21 0 0 57 51 50 18 0 29 11 203 5.11 352.5 355.25 -4.33N 21 15 0 57 58 30 18 0 41 11 203 5.19 352.5 355.24 -4.34N 21 30 0 58 5 13 18 0 53 11 203 5.27 352.5 355.24 -4.35N 21 45 0 58 11 57 18 1 4 11 204 5.35 352.5 355.23 -4.36N 22 0 0 58 18 43 18 1 15 10 204 5.44 352.5 355.22 -4.36N 22 15 0 58 25 30 18 1 26 10 204 5.53 352.4 355.21 -4.37N 22 30 0 58 32 20 18 1 36 10 205 5.63 352.4 355.21 -4.38N 22 45 0 58 39 11 18 1 47 10 205 5.72 352.4 355.20 -4.38N 23 0 0 58 46 3 18 1 57 10 205 5.82 352.4 355.20 -4.39N 23 15 0 58 52 57 18 2 7 10 205 5.93 352.4 355.19 -4.39N 23 30 0 58 59 53 18 2 17 9 206 6.04 352.4 355.19 -4.40N 23 45 0 59 6 50 18 2 26 9 206 6.15 352.4 355.18 -4.40N 24 0 0 59 13 49 18 2 36 9 206 6.27 352.4 355.18 -4.40N 24 15 0 59 20 49 18 2 45 9 206 6.39 352.4 355.18 -4.41N 24 30 0 59 27 51 18 2 54 9 207 6.52 352.4 355.17 -4.41N 24 45 0 59 34 54 18 3 2 9 207 6.65 352.4 355.17 -4.41N 25 0 0 59 41 58 18 3 11 8 207 6.79 352.4 355.17 -4.41N 25 15 0 59 49 4 18 3 19 8 207 6.93 352.4 355.17 -4.42N 25 30 0 59 56 11 18 3 27 8 208 7.08 352.4 355.17 -4.42N 25 45 0 60 3 20 18 3 35 8 208 7.24 352.4 355.17 -4.42N 26 0 0 60 10 29 18 3 43 8 208 7.40 352.4 355.16 -4.42N 26 15 0 60 17 40 18 3 51 8 208 7.57 352.4 355.16 -4.42N 26 30 0 60 24 52 18 3 58 7 209 7.75 352.4 355.16 -4.42N 26 45 0 60 32 5 18 4 5 7 209 7.94 352.4 355.16 -4.42N 27 0 0 60 39 20 18 4 12 7 209 8.14 352.4 355.16 -4.42N 27 15 0 60 46 35 18 4 19 7 209 8.35 352.4 355.16 -4.42N 27 30 0 60 53 52 18 4 25 7 210 8.57 352.4 355.17 -4.42N 27 45 0 61 1 10 18 4 31 6 210 8.80 352.4 355.17 -4.42N 28 0 0 61 8 28 18 4 38 6 210 9.04 352.4 355.17 -4.42N 28 15 0 61 15 48 18 4 43 6 210 9.30 352.4 355.17 -4.41N 28 30 0 61 23 9 18 4 49 6 211 9.57 352.4 355.17 -4.41N 28 45 0 61 30 30 18 4 55 6 211 9.86 352.4 355.18 -4.41N 29 0 0 61 37 53 18 5 0 6 211 10.16 352.4 355.18 -4.41N 29 15 0 61 45 16 18 5 5 5 211 10.49 352.4 355.18 -4.40N 29 30 0 61 52 41 18 5 10 5 212 10.83 352.4 355.19 -4.40N 29 45 0 62 0 6 18 5 15 5 212 11.20 352.4 355.19 -4.40N 30 0 0 62 7 32 18 5 20 5 212 11.59 352.4 355.19 -4.39N 30 15 0 62 14 59 18 5 24 5 212 12.02 352.4 355.20 -4.39N 30 30 0 62 22 27 18 5 28 5 213 12.47 352.4 355.20 -4.38N 30 45 0 62 29 56 18 5 32 4 213 12.96 352.4 355.21 -4.38N 31 0 0 62 37 26 18 5 36 4 213 13.49 352.4 355.21 -4.37N 31 15 0 62 44 56 18 5 40 4 213 14.06 352.4 355.22 -4.37N 31 30 0 62 52 27 18 5 43 4 214 14.68 352.5 355.22 -4.36N 31 45 0 62 59 58 18 5 47 4 214 15.36 352.5 355.23 -4.36N 32 0 0 63 7 31 18 5 50 4 214 16.10 352.5 355.24 -4.35N 32 15 0 63 15 4 18 5 53 3 214 16.92 352.5 355.24 -4.34N 32 30 0 63 22 37 18 5 55 3 215 17.82 352.5 355.25 -4.34N 32 45 0 63 30 12 18 5 58 3 215 18.82 352.5 355.25 -4.33N 33 0 0 63 37 46 18 6 0 3 215 19.94 352.5 355.26 -4.32N 33 15 0 63 45 22 18 6 3 3 215 21.20 352.5 355.27 -4.32N 33 30 0 63 52 58 18 6 5 3 215 22.63 352.5 355.28 -4.31N 33 45 0 64 0 34 18 6 7 2 216 24.26 352.5 355.28 -4.30N 34 0 0 64 8 12 18 6 8 2 216 26.13 352.5 355.29 -4.29N 34 15 0 64 15 49 18 6 10 2 216 28.32 352.5 355.30 -4.28N 34 30 0 64 23 27 18 6 11 2 216 30.90 352.5 355.31 -4.28N 34 45 0 64 31 6 18 6 13 2 217 33.99 352.5 355.32 -4.27N 35 0 0 64 38 45 18 6 14 2 217 37.76 352.6 355.33 -4.26N 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 8 meters [Estimated] 2680 is double: This next pair is not confirmed ** 6.6 6.6 0.10" 322.0** (OCc 988) Graze path of ? 0.47 km south, and 0.1 secs earlier compared to the primary Librations Long -5.52 Lat -5.76 P +355.74 D +6.46 Illumination of moon 49%+ Elongation of Moon 89 Vertical Profile Scale 5.36 km/arcsec at mean distance of moon Horizontal Scale Factor 1.67 deg/min At longitude 25.00: Limiting Magnitudes for various telescope apertures (in cm) CA\Tdia 5 10 15 20 25 30 35 -8.4 2.1 3.3 3.9 4.1 4.3 4.3 4.4 -6.4 2.1 3.3 3.9 4.1 4.3 4.3 4.4 -4.4 2.1 3.3 3.9 4.1 4.3 4.3 4.4 -2.4 2.1 3.3 3.9 4.1 4.3 4.3 4.4 -0.4 2.1 3.3 3.9 4.1 4.3 4.3 4.4 ------------------------------------------------------------------------------ Double star catalogue details WDS entries RA Dec Name Y1 Y2 N PA PA Sep Sep M1 M2 18302-1844OCC 988 0 6.6 6.6 +035-091 -18 4982 183011.84-184342.9 ------------------------------------------------ Interferometric catalogue entries 183011.84-184342.9 BD-18 4982 OCC 988 HD 170433 HIP 90687 18302-18 Date PA Sep M1 M2 1997. V322. . 0.1 . 6.6 . 6.6 . . 1 OCC2002 O ------------------------------------------------------------------------------ Results of Observer Scan UT Site Long. Lat. Dist. h m s Artjärvi Tähtikallio 26.2 60.7 36km 18 3 49 Hämeenlinna 24.4 61.0 124km 18 2 51 Hamina 27.2 60.6 15km 18 4 17 Hartola 26.0 61.6 109km 18 3 43 Helsinki Kaivopuisto 25.0 60.2 38km 18 3 9 Irjanpolku 25.7 61.0 75km 18 3 33 Järvenpää 25.1 60.5 59km 18 3 14 Kangasala 24.0 61.4 172km 18 2 35 Kemiö 22.8 60.1 120km 18 1 48 Lahti Pirttiharju 25.6 61.0 79km 18 3 30 Lahti Tkoulu 25.7 61.0 76km 18 3 33 Lappeenranta 28.2 61.1 14km 18 4 42 Lillkanskog 24.4 60.0 45km 18 2 52 Loviisa 26.2 60.5 14km 18 3 50 Maarianhamina 19.9 60.1 225km 17 59 38 Mikkeli Kiiskinmäki 27.2 61.7 70km 18 4 18 Pirkkola 24.9 60.2 46km 18 3 8 Porvoo 25.7 60.4 28km 18 3 34 Puistokatu 25.7 61.0 76km 18 3 32 Tampere Kauppi 23.8 61.5 188km 18 2 28 Turku Isoheikkilä 22.2 60.5 165km 18 1 25 Vaania 25.5 61.1 93km 18 3 28 Veikkola 24.7 60.2 50km 18 3 2